This is as far as the customer allowed me to take this diagnose. But based upon the information we collected. Could anyone guess what was wrong with this engine? And on what cilinder is the problem the biggest? The firing order is 1-3-4-2
Hard to conclude. Cyl #4 requires more current, but could be the one with the best compression, while crank bearings are bad. Can't diagnose bad individual crank bearings with this test, as the bearings rotate All the time. Might be able to diagnose out a bad cyl when running the test with injectors removed.
Cyl 4 demand more current it maybe one of cam soupape (in French) gripped of exhaust so it's does not allow others cylinders to go to speed rotation (rpm) to start the engine
I love the proper technical approach to the problem. Take measurements, analyse, don't make assumptions, and don't go mad replacing parts desperately hoping the fault will go away. Dan's approach is a proper professional's approach. Sadly, a lot of workshops won't or can't invest the time to get to this level of understanding. The tools used are actually quite simple; the underpinning knowledge and experience is the clever bit. Well done Dan.
Great observation. Most workshops are all about the numbers (how many can they work on in an hour or a day) and they miss the basics. Dan actually seeks to solve the problem
I love the way the customer gives the car to the shop without telling you anything, the customer must have known about whatever happened underneath the oil pan and puts it into the shop expecting some miracle will make the engine go when it clearly need a strip down and rebuild. I love your diverse use of diagnostic equipment to zero in on a fault.
@@MrDosSantos991 they are . Even a 2 litre engine needs 400+ amps and a 600 CCA battery . Where as a 2 litre gasoline only as a 450 CCA battery and 150 -200 amps . 400x10v is really 4kw . It will turn anything
no it won’t, have been working in a garage for more than 15 years now and i have seen big diesels seize up and no starter could ever move them.. only clicking
When I got out of Vo Tech, in 77, I was the go to guy for diagnosing electrical problems. I even had service bulletins in the 79 Kenworth manual. I was the guy that actually figured out how to make the sleeper AC/ heat switch work. LOL Today I couldn't diagnose my way out of a wet paper sack. I'm very impressed with both your knowledge and you patience. Well done.
great informative and clear explanation again your channel is now on my list of necessary viewing for my apprentice who keeps telling me he wants to learn more than the young lady trying to take his job ( and I must say shes not just a pretty face butr she has the technical abilities to back it up
Between the lack of information provided by the other garage, who had "a lot of hours" in it, and your decision not to make a conclusion, I suspect the other garage made a boo-boo and smoked the engine. Just my suspicious nature rising to the surface yet again. Great video as always - thanks.
I know this is old but . . Brilliant video and great analytical thinking. As for what caused it to seize - well, I came across a Mercedes engine once which had new bearing shells put in the bottom end. They were fine, correctly sized etc. However, there's a semi-circular shim which takes up the longitudinal play in the crank. These are a sod to get in the correct place when reassembling the bearings. If they drop, even slightly, the crank will be more or less locked. It would have been interesting to know how it was resolved for your case.
My journeyman taught me to apply the basics, just as Dan demonstrated. When reporting that the oil pan gasket was glued with silicone, one immediately knows that the cause of hard engine turning is in the bottom end. This video has just reminded us to apply the basics. Cars from other workshops that cannot repair properly reveals incompetency as most modern workshops have the tools to assess the problems. The other workshop know where they have messed up and were not willing to sharw the correct information. Very sad as the customer suffers the consequences.
Another great video! Thank you DiagnoseDan! I would have been helpful if you said in the video that the customer did not allow further exploration of the problem as the video felt incomplete... I was eager to know the story and was a bit of a let down but it was not your fault! Dealing with other peoples messed up jobs is difficult and complicated... I was betting in a timing problem as the N47 are notorious for timing chain problems... Best regards and keep up the excellent work!
Just to clear things up for novices, when the timing is off, that means almost NO compression, and then the engine would turn FASTER and draw little current, not slow as molasses like that one and drawing huge Amps;
Great video yet again Dan. I think the crankshaft has had new main bearings or big end bearings in the conrods and they haven't been installed correctly by using prestigauge etc! Hence, very tight engine.
I had a seized air conditioner compressor do the same thing. Wasn’t until I noticed a build up of rubber around the pulley that I took the belt off and it ran. Love cars!!
Without taking the sump off and checking the bearings we will never know,as Dan said someone has been in there.Plenty of cowboys around that have no clue !Would of been great to find out .keep up the great videos Dan .happy new year
Great video. I having the same problem with my M57 engine. Bmw X5 E70. I have tryed almost everything but i haven't tryed to turn it by hand. I will try that tomorrow.
Its cool you take the time through all the diag process . For sure i was going to check the low pressure fuel pump first , they fail a lot . Nice to see someone working on euro cars :D
Good diagnosis again Dan. Need to dig deeper into the engine to find out the problem, they wouldn't let you do that, too bad, I know you could fix it, or replace the engine.
Just FYI for other viewers as to why the current clamps reads in mV.. To read high current we use torroidal transformers that are part of the clamp circle. The current through the transformers induces a voltage on the winding. This relationship is linear and can be used an accurate method to measure high current.
I like this more low key style of video. One question I have is on the relative compression test with the diesel engine. Assuming the engine is capable of running, how do you trigger cylinder 1? Do you unplug all of the injectors? Since we are guessing, I'm saying the engine spun a main or rod bearing.
That really depends on the system your working on. And what's easy to get to. Sometimes it's unplugging a dieselpump connector. Other times i blead the fuel rail.
I try and use scan data to check for fuel pressure now as soon as I get a no start on a common rail. That engine just never sounded like it was cranking fast enough. Had it "run" a bearing ? I had a water cooled alternator on a BMW seize that gave a no crank symptom one time it was very hard to diagnose at the side of the road. I love your video's ! Very helpful ! Thanks from New Zealand.
I suspect there's a partial seizure in one or more of the cylinders, hence the high current draw that is also inconsistent. If it was a big end or a main bearing issue, then the relative compression would not have such a wide variance.
Toen ik in de titel zag N47 ging er spontaan een lampje branden in m'n hoofd: "DISTRIBUTIEKETTING" haha iedereen snapt wel waarom ;) Iets loopt er niet soepel maar als de timing goed is kan je toch moeilijk de ketting verdenken. Goeie video, enkel zonde dat je niet verder kon gaan. Was wel benieuwd wat het zou zijn :)
Arno Bruynen, klopt Arno ik moest deze diagnose uitvoeren voor een andere Garage die er al een tijdje mee bezig was. Toen ik ze vertelde dat de motor zwaar draaide hebben ze hem opgehaald en zijn ze er zelf verder mee gegaan. Erg jammer, maar zo loopt het soms!😉
I've seen seized up pulleys drag the engine down like that. Not sure if the relative compression test would be affected like that. Looks cylinder specific. Please Dan, I need to know what fixed it!! Love you man! Thanks for the great videos. Vito.
Had installed undersize big end or main bearings on previous job or partial seizure due to running no coolant previously. Customer twigged when you told them (or the amount of the likely Bill haha)
This was a great case study Danny! It had me scratching my head for a while,but then I started wondering if something is dragging on this engine. Since Diesel engines need a lot of compression to start,I was thinking there might be an issue. What if you had removed the drive belts and try again? What if the generator had failed,the AC compressor or the water pump? I’ve seen that before! Very interesting! 👍👍👍
As seen on 8:20 cyl #3 is the one drawing the most current, therefore it's the one with the highest compression ratio, wich means that the piston is traveling further up on that cyl than the others. I believe this n47 engine is a "interference engine", wich means that if timing chain was to break the pistons would hit the valves, so, we are lead to conclude that the reason for Dan not being able to turn the engine around by hand is because cyl #3 has its piston hitting the valves not enabling the turnover of the engine. My guess: Oil changes not done in time, maybe even with poor oil quality and the big end bearings on cyl#3 failed overlapping each other and making the piston "stretch" upwards maybe a 1 millimeter or 2
BMW - Break My Wallet. At least the timing chain didn't snap, those N47 are a nightmare, if it has more than 40k miles then that's already astonishing that it didn't bend valves. The last statement you made, could be the culprit for the seizing, lack of lubrication because of debris on the pick up means death... Great content, subbed.👍
Not here in the UK, I have a 118d convertible I've taken up to 96k miles, nothing needed. My car was made in Germany, apparently they make BMWs in the US and cheap Chinese parts are used, so hence things go wrong with BMWs over there, maybe buy an import
@@davidviner4932 yes I get you, it is the same with Mercedes made in the US the quality is crap compared to German. But I can tell you David, I see heaps of broken engines in E87 e90s etc. I live in Germany and it seems that it happened here widely aswell, people fought for their rights to get some of the bill covered by BMW. I'm glad that you got lucky, it's not all of them but it's a Russian lottery.
@@johngallagher909 You got lucky, thats a good thing. People who buy BMW's have to ignore the oil change intervall of 20k km and do it at least every 15k km, that would prevent failures, which these cars are prone to.
You are great diagnostician, but suporting this statement is not right and you put positive comments on SD channel. If someone aproach every subject from base level, than it's him. I hope you would not do anything for more subscribers.
I bet you watched one SD video and the subject was to difficult for you, and now it's his fault. To say that Paul's aproach is not from the base level there must be somethig wrong with you big time.
Cam Smith Scanner Danner and Dan are two different guys, different approach to teaching, different methods. I don’t think you should be comparing these guys and and putting out comments like these. Paul is by far better than YOU at this stuff and he is one of the best instructors out there. Dan is fenomenal at what he does and has a simple way of teaching. Take what you can from everyone out there always remembering that you are doing it for free. The world does not revolve around you...
Love your work - learning lots, following from New Zealand. I have a question you maybe able to help with, have looked everywhere for an answer but been unable to find! “ why do you have an adaptive value reset for petrol engines and an auto trans - but do not have an adaption reset for Diesel engines” ? Cheers Kevin.
A very useful way to check the condition of your engine the relative compression test is fast and also point you in the right direction . I know you didn't but it would have been nice to see the problem but most likely it was terminal lol 🤔
In one of the car you were diagnostic was call a lot of back pressure dpf. I think the reason that you ave that much pressure is becouse the dpf, is plug becouse it works just like a catalytic comberter. Dpf is completely plug.
I am a little late Dan, but my first question from the one who sent this to you is 'exactly when did this problem start?' Has it ever run after the previous engine work? In my experience, a spun bearing will not cause increased friction as by this time the shell has chewed out and there is a bigger clearance between the shell and the rod/main cap. Why didn't you put a camera down the injector holes to check cylinder bore condition when the injectors were removed? Last time I had this problem was after a guy pulled his range rover V8 and replaced rings/bearings. He put the bearings for crank end float in the wrong block location and did not match them together either (a little knowledge can be a dangerous thing). Once I corrected this (still in the car as plenty of access to remove sump) it turned over and started normally.
Perfect video and nice quick diagnosis 👏👍. Could you please tell me Dan where can I get the really good wiring diagram for any cars? Online or program?
I think I’d want to do an actual physical compression test as the relative test only highlights major differences between the effort required to crank each piston up to tdc. If compressions were acceptable and a booster was used to get an acceptable cranking speed it should start with that whiff of brake cleaner put in.
Thanks for the detailed information that the others skip over. Have you ever succeeded in repairs by only cleaning a sensor, could you demonstrate that.
Sounded funny, turning over. I always remove accessory belt to eliminate all possibilities. Seen a seized up trans pump make engine look locked up, got engine out and it turned over fine after replacement was sitting here ha!
warped or damaged crankshafts or something on the timing chain or a bent valve will cause a partially seized engine that will still turn...allthought bent valves are unlikely because it has some compression on all 4 cylinders...usually if a piston seizes it will not turn anymore but if you unstick it by force it will turn normally again just will lower compression on that cylinde.......seized crank usually only happens if incorrect bearings are fitted...if an original bearing spins or gets worn the symptom is knocking sound and loss of oil pressure... also if it was the crank the car shold still start especially if bump-started
Good mystery video. If the main bearings were burnt the engine would be tight and the compression strokes for each cylinder would not make a difference in the amp draw by the starter. I would have liked a visual inspection of the valves and timing chain. I wish I could justify buying a scope. Why are there different width pulses from the cam sensor?
Noticed the aux belt was missing at the start , the other garage obviously new the engine was hard to turn over and removed the belt to see if it was a seized alternator or water pump etc
wat ik op avondschool geleerd heb is dat je de capaciteit van de batterij x3 moet doen om de werkelijke stroomopname te berekenen van de startmotor.het jammere van de zaak is dat we eigenlijk te weinig praktijk krijgen,dit is dus een welkome aanvulling op mijn opleiding.blijven posten zou ik zeggen👍 want dit soort fimpjes geven mij een heel andere invalshoek
When you spray flamable gas to the intake, you in risk of exploding intake. If you have open intake valve, even a glow plug can ignite mixture. So it is risky one. We are using spray for dash panels. You get softer explosion, when cranking. And also it smells nice :D
This is as far as the customer allowed me to take this diagnose.
But based upon the information we collected. Could anyone guess what was wrong with this engine?
And on what cilinder is the problem the biggest? The firing order is 1-3-4-2
There must be some kind of bearing damage. I guess the main bearing of the crankshaft
Hard to conclude. Cyl #4 requires more current, but could be the one with the best compression, while crank bearings are bad. Can't diagnose bad individual crank bearings with this test, as the bearings rotate All the time. Might be able to diagnose out a bad cyl when running the test with injectors removed.
I think the problem was the camshafts... I got that problem with a 2.0 TDI from a Passat
someone put in the wrong size rod bearings and #4 is more tight than the others.
Cyl 4 demand more current it maybe one of cam soupape (in French) gripped of exhaust so it's does not allow others cylinders to go to speed rotation (rpm) to start the engine
I love the proper technical approach to the problem. Take measurements, analyse, don't make assumptions, and don't go mad replacing parts desperately hoping the fault will go away. Dan's approach is a proper professional's approach. Sadly, a lot of workshops won't or can't invest the time to get to this level of understanding. The tools used are actually quite simple; the underpinning knowledge and experience is the clever bit. Well done Dan.
Great observation. Most workshops are all about the numbers (how many can they work on in an hour or a day) and they miss the basics. Dan actually seeks to solve the problem
I love the way the customer gives the car to the shop without telling you anything, the customer must have known about whatever happened underneath the oil pan and puts it into the shop expecting some miracle will make the engine go when it clearly need a strip down and rebuild. I love your diverse use of diagnostic equipment to zero in on a fault.
The relative compression test is brilliant, never thought of that. Good one !
semecristian Thanks for watching 😁
Every single your video from I am learning new things , really you are a good automotive trainer .........
Your videos are the only videos on UA-cam that I know for sure will get a thumbs up!
That's simply fantastic training. Using the starter motor current was a wizard move. Many thanks Dan
I use the following rule of thumb: the maximum starting current should not exceed three times the original battery capacity at a good starting speed
That's a hell of an starter to still turn a locked up motor, lol
Steve Sorits its a diesel starter ! They are powerful ! 🤣
:))) exactly
@@rahuldograrubbish
@@MrDosSantos991 they are . Even a 2 litre engine needs 400+ amps and a 600 CCA battery . Where as a 2 litre gasoline only as a 450 CCA battery and 150 -200 amps . 400x10v is really 4kw . It will turn anything
no it won’t, have been working in a garage for more than 15 years now and i have seen big diesels seize up and no starter could ever move them.. only clicking
When I got out of Vo Tech, in 77, I was the go to guy for diagnosing electrical problems. I even had service bulletins in the 79 Kenworth manual. I was the guy that actually figured out how to make the sleeper AC/ heat switch work. LOL
Today I couldn't diagnose my way out of a wet paper sack. I'm very impressed with both your knowledge and you patience. Well done.
great informative and clear explanation again your channel is now on my list of necessary viewing for my apprentice who keeps telling me he wants to learn more than the young lady trying to take his job ( and I must say shes not just a pretty face butr she has the technical abilities to back it up
Great channel, no BS, straight to the point!
Excellent.well usage of oscilloscope...for better conclusion.Me also experienced HMS 990...
Between the lack of information provided by the other garage, who had "a lot of hours" in it, and your decision not to make a conclusion, I suspect the other garage made a boo-boo and smoked the engine. Just my suspicious nature rising to the surface yet again. Great video as always - thanks.
🤫
I just suggested that too ... and I'm NOT a mechanic
I know this is old but . . Brilliant video and great analytical thinking. As for what caused it to seize - well, I came across a Mercedes engine once which had new bearing shells put in the bottom end. They were fine, correctly sized etc. However, there's a semi-circular shim which takes up the longitudinal play in the crank. These are a sod to get in the correct place when reassembling the bearings. If they drop, even slightly, the crank will be more or less locked. It would have been interesting to know how it was resolved for your case.
nice video, audible enough, you got yourself a subscriber.
Thanks for Subscribing!
My journeyman taught me to apply the basics, just as Dan demonstrated. When reporting that the oil pan gasket was glued with silicone, one immediately knows that the cause of hard engine turning is in the bottom end. This video has just reminded us to apply the basics. Cars from other workshops that cannot repair properly reveals incompetency as most modern workshops have the tools to assess the problems. The other workshop know where they have messed up and were not willing to sharw the correct information. Very sad as the customer suffers the consequences.
Bloody good at your job sir....you make it look easy
A good workout with the intro music and the sure knowledge that all will be well in 15 minutes is good lockdown medicine
Another great video! Thank you DiagnoseDan!
I would have been helpful if you said in the video that the customer did not allow further exploration of the problem as the video felt incomplete...
I was eager to know the story and was a bit of a let down but it was not your fault! Dealing with other peoples messed up jobs is difficult and complicated...
I was betting in a timing problem as the N47 are notorious for timing chain problems...
Best regards and keep up the excellent work!
I know, thanks for watching my video's it's appreciated!
Just to clear things up for novices, when the timing is off, that means almost NO compression, and then the engine would turn FASTER and draw little current, not slow as molasses like that one and drawing huge Amps;
I love your demo style is very nice. My self Deepak India and you sir.
Holland! Thanks for watching my video's it's appreciated!
Very smart man greetings from Boston Massachusetts
Excellent as always Dan
thanks so much for all u do i am so appreciative.chuck from Tennessee
Chuck gilbreath, Thanks for the great comment it means a lot to me!👍
Great job again like always
😉👍
Im waiting for a video about srs airbag . You’re the best Dan
I'm sure we are going to have a video on airbags one day.
You are my idol man. Unbelievable knowledge
Don't be silly he should have worked this out in minutes and why the fuck did he tke the injectors out?
4:41
"What do we know now? We know nothing!"
There have never been truer words spoken.
your the best car tech i like it
Amazing diagnostic
Thanks!
Sweet! Relative compresion test with scope and amp clamp DVOM!
Argeny Sandoval 😁👍
Great info one of the best
Mason Slater thank you sir.👍
Great video yet again Dan. I think the crankshaft has had new main bearings or big end bearings in the conrods and they haven't been installed correctly by using prestigauge etc! Hence, very tight engine.
Thanks for watching!😊
I had a seized air conditioner compressor do the same thing. Wasn’t until I noticed a build up of rubber around the pulley that I took the belt off and it ran. Love cars!!
Nice job Dan👍👍👍👍👍👍
amazing video
Without taking the sump off and checking the bearings we will never know,as Dan said someone has been in there.Plenty of cowboys around that have no clue !Would of been great to find out .keep up the great videos Dan .happy new year
Thanks Terence!👍
great job again 👍💪🏻
Thanks
Great video. I having the same problem with my M57 engine. Bmw X5 E70. I have tryed almost everything but i haven't tryed to turn it by hand. I will try that tomorrow.
😜👍
What did you learn?
Its cool you take the time through all the diag process . For sure i was going to check the low pressure fuel pump first , they fail a lot . Nice to see someone working on euro cars :D
Crank Thank you!😁
@@Diagnosedan I didn't think the low pressure pump would matter only the high pressure?
Good diagnosis again Dan. Need to dig deeper into the engine to find out the problem, they wouldn't let you do that, too bad, I know you could fix it, or replace the engine.
Great video thanx for sharing,sounds like it maybe semi seized main bearings..
Your welcome and thanks for watching my video's it's appreciated
never knew Lars Ulrich from metallica was a mechanic
xD
Lolz
I thought it was Valteri Bottas lol
Just FYI for other viewers as to why the current clamps reads in mV.. To read high current we use torroidal transformers that are part of the clamp circle. The current through the transformers induces a voltage on the winding. This relationship is linear and can be used an accurate method to measure high current.
Very accurate diagnosis
I like this more low key style of video. One question I have is on the relative compression test with the diesel engine. Assuming the engine is capable of running, how do you trigger cylinder 1? Do you unplug all of the injectors? Since we are guessing, I'm saying the engine spun a main or rod bearing.
That really depends on the system your working on. And what's easy to get to. Sometimes it's unplugging a dieselpump connector. Other times i blead the fuel rail.
Great video again....surely a bearing problem, please let us know. Thank you.
This is very informative.
Thanks!
I try and use scan data to check for fuel pressure now as soon as I get a no start on a common rail. That engine just never sounded like it was cranking fast enough. Had it "run" a bearing ? I had a water cooled alternator on a BMW seize that gave a no crank symptom one time it was very hard to diagnose at the side of the road. I love your video's ! Very helpful ! Thanks from New Zealand.
herr kiwi The name Kiwi gave you away🤣
Well done, again.
Thanx!
awesome, realy like it ! helpful !
Dan your such a tease!!! Thanks again!
🤣🤣
I suspect there's a partial seizure in one or more of the cylinders, hence the high current draw that is also inconsistent. If it was a big end or a main bearing issue, then the relative compression would not have such a wide variance.
So i guess we dont know what exatly made it to be so hard to turn around. Pistons or a bearing? great diagnose Dan! Thanks for the video!
Fronius, Autologic and TIEPIE. :) Hell yes. I love THESE products man. Love them. IMHO PRO stuff right there. :)
metalhead BADMOJO Thanks man!😎
Thanks Dan
reliable bmw chaine issue also like to spun bearing main and rod
Very good video with accurate tests, and excellent knowledge, finally what was the problem on THIS N47 engine?
Sounds like an other has been doing bottom end work and made a booboo, top work Dan
Good job.
😉
thank you
Thanks!
Toen ik in de titel zag N47 ging er spontaan een lampje branden in m'n hoofd: "DISTRIBUTIEKETTING" haha iedereen snapt wel waarom ;) Iets loopt er niet soepel maar als de timing goed is kan je toch moeilijk de ketting verdenken. Goeie video, enkel zonde dat je niet verder kon gaan. Was wel benieuwd wat het zou zijn :)
Arno Bruynen, klopt Arno ik moest deze diagnose uitvoeren voor een andere Garage die er al een tijdje mee bezig was. Toen ik ze vertelde dat de motor zwaar draaide hebben ze hem opgehaald en zijn ze er zelf verder mee gegaan. Erg jammer, maar zo loopt het soms!😉
I've seen seized up pulleys drag the engine down like that. Not sure if the relative compression test would be affected like that. Looks cylinder specific. Please Dan, I need to know what fixed it!! Love you man! Thanks for the great videos. Vito.
Badass video
😎😉👍
I wish you were a mechanic here in the UK. Mechanics here tend to pick up the hammer first for any problems. I hate going to the garage.
That's to bad to hear, but i know for a fact there are some fantastic techs over there. You just need to find them!
Don't call it a hammer! That's insulting! Birmingham Screwdriver to you, please.
Had installed undersize big end or main bearings on previous job or partial seizure due to running no coolant previously. Customer twigged when you told them (or the amount of the likely Bill haha)
This was a great case study Danny! It had me scratching my head for a while,but then I started wondering if something is dragging on this engine. Since Diesel engines need a lot of compression to start,I was thinking there might be an issue. What if you had removed the drive belts and try again? What if the generator had failed,the AC compressor or the water pump? I’ve seen that before! Very interesting! 👍👍👍
Nick Nicu, if you w watched closely you would have seen the belts were taken off😉
DiagnoseDan Ah cool,thanks! 👍 That’s what happens when you watch on a phone screen... 😁
Yup ,had an ac compressor, lock up, and then a no crank,cheers
As seen on 8:20 cyl #3 is the one drawing the most current, therefore it's the one with the highest compression ratio, wich means that the piston is traveling further up on that cyl than the others. I believe this n47 engine is a "interference engine", wich means that if timing chain was to break the pistons would hit the valves, so, we are lead to conclude that the reason for Dan not being able to turn the engine around by hand is because cyl #3 has its piston hitting the valves not enabling the turnover of the engine. My guess: Oil changes not done in time, maybe even with poor oil quality and the big end bearings on cyl#3 failed overlapping each other and making the piston "stretch" upwards maybe a 1 millimeter or 2
That would lock the engine. Not to mention the noise it would make.
Wiring diagrams built into the scope ? Neat.
Yes the Atis Software is what makes this scope stand out😊
BMW - Break My Wallet.
At least the timing chain didn't snap, those N47 are a nightmare, if it has more than 40k miles then that's already astonishing that it didn't bend valves.
The last statement you made, could be the culprit for the seizing, lack of lubrication because of debris on the pick up means death...
Great content, subbed.👍
Not here in the UK, I have a 118d convertible I've taken up to 96k miles, nothing needed. My car was made in Germany, apparently they make BMWs in the US and cheap Chinese parts are used, so hence things go wrong with BMWs over there, maybe buy an import
@@davidviner4932 yes I get you, it is the same with Mercedes made in the US the quality is crap compared to German. But I can tell you David, I see heaps of broken engines in E87 e90s etc. I live in Germany and it seems that it happened here widely aswell, people fought for their rights to get some of the bill covered by BMW.
I'm glad that you got lucky, it's not all of them but it's a Russian lottery.
I have an E90 with the N47 engine (316d) and it has done 216,000 miles with only routine maintenance required
@@johngallagher909 You got lucky, thats a good thing. People who buy BMW's have to ignore the oil change intervall of 20k km and do it at least every 15k km, that would prevent failures, which these cars are prone to.
I have a feeling that the lower powered N47 engines (like the 316d) tend to be less prone to timing chain failure.
Amazing to see how Dan has changed his "stage presence" from 5 years ago.
The caps need a funkier font, that way they'll me even harder to read.
White on a light background makes me exercise my squint muscles.
I've seen the same problem on a VW Golf gas(petrol) motor. Rod bearing spun and was seizing on the crankshaft. Engine was very hard to turn over.
Well get a new car then and shut your shit up. Jeeez what a jerk off
Cool Dan)
Far better than Scannerdanner, as you approach the subject from a base level. No jargon and no massive procrastination like other contributions.
Cam Smith Thanks that's a great compliment!😎
You are great diagnostician, but suporting this statement is not right and you put positive comments on SD channel.
If someone aproach every subject from base level, than it's him. I hope you would not do anything for more subscribers.
I bet you watched one SD video and the subject was to difficult for you, and now it's his fault. To say that Paul's aproach is not from the base level there must be somethig wrong with you big time.
Paul is a great tech and if u can't grasp what he is saying then maybe you should work in a florist
Cam Smith Scanner Danner and Dan are two different guys, different approach to teaching, different methods. I don’t think you should be comparing these guys and and putting out comments like these.
Paul is by far better than YOU at this stuff and he is one of the best instructors out there. Dan is fenomenal at what he does and has a simple way of teaching. Take what you can from everyone out there always remembering that you are doing it for free. The world does not revolve around you...
Love your work - learning lots, following from New Zealand. I have a question you maybe able to help with, have looked everywhere for an answer but been unable to find!
“ why do you have an adaptive value reset for petrol engines and an auto trans - but do not have an adaption reset for Diesel engines” ? Cheers Kevin.
Very good
A very useful way to check the condition of your engine the relative compression test is fast and also point you in the right direction . I know you didn't but it would have been nice to see the problem but most likely it was terminal lol 🤔
Raymond Ferguson agreed! I would have liked to take it a bit further. But the news was bad enough for the customer.😣
In one of the car you were diagnostic was call a lot of back pressure dpf. I think the reason that you ave that much pressure is becouse the dpf, is plug becouse it works just like a catalytic comberter. Dpf is completely plug.
I am a little late Dan, but my first question from the one who sent this to you is 'exactly when did this problem start?' Has it ever run after the previous engine work? In my experience, a spun bearing will not cause increased friction as by this time the shell has chewed out and there is a bigger clearance between the shell and the rod/main cap.
Why didn't you put a camera down the injector holes to check cylinder bore condition when the injectors were removed?
Last time I had this problem was after a guy pulled his range rover V8 and replaced rings/bearings. He put the bearings for crank end float in the wrong block location and did not match them together either (a little knowledge can be a dangerous thing). Once I corrected this (still in the car as plenty of access to remove sump) it turned over and started normally.
Perfect video and nice quick diagnosis 👏👍. Could you please tell me Dan where can I get the really good wiring diagram for any cars? Online or program?
I think I’d want to do an actual physical compression test as the relative test only highlights major differences between the effort required to crank each piston up to tdc.
If compressions were acceptable and a booster was used to get an acceptable cranking speed it should start with that whiff of brake cleaner put in.
An easy compression comparison is just to listen when you crank the engine. You can hear the uneven rpm on the starter
You are right!😚
Thanks 🙏 that was very helpful
How many Amps a normal diesel starter motor should draw
Depends on a few things
1.5 liter around 200 amps, 3 liter around 300 amps... these n47 are the WORST ever made avoid.... lol
what can I say ,you are better than GOOD
My stab in the dark would be that incorrectly sized bearings have been installed? Love your video's btw Dan, keep up the good work :)
Icarus Thank you!😁💪
Thanks for the detailed information that the others skip over. Have you ever succeeded in repairs by only cleaning a sensor, could you demonstrate that.
Sounded funny, turning over.
I always remove accessory belt to eliminate all possibilities.
Seen a seized up trans pump make engine look locked up, got engine out and it turned over fine after replacement was sitting here ha!
Nice one mate I was waiting for him to take the aux belt off had a golf with seized alternator oops,
Saw a seized gearbox once gave same fault but this seams like bearings on crank
warped or damaged crankshafts or something on the timing chain or a bent valve will cause a partially seized engine that will still turn...allthought bent valves are unlikely because it has some compression on all 4 cylinders...usually if a piston seizes it will not turn anymore but if you unstick it by force it will turn normally again just will lower compression on that cylinde.......seized crank usually only happens if incorrect bearings are fitted...if an original bearing spins or gets worn the symptom is knocking sound and loss of oil pressure... also if it was the crank the car shold still start especially if bump-started
Dan another great tutorial video .
but is the conclusion the problem mechanical in the engine . ex ( crankshaft bearing )
Mechanical yes
Good mystery video. If the main bearings were burnt the engine would be tight and the compression strokes for each cylinder would not make a difference in the amp draw by the starter. I would have liked a visual inspection of the valves and timing chain. I wish I could justify buying a scope. Why are there different width pulses from the cam sensor?
To determine the position of the cam
Nice! Does that engine use a hall effect CKP sensor? I would expect an inductive AC sensor.
for fuel you could have checked the pre supply pressure and rail pressure too , with the status list on you diag tool .
Noticed the aux belt was missing at the start , the other garage obviously new the engine was hard to turn over and removed the belt to see if it was a seized alternator or water pump etc
wat ik op avondschool geleerd heb is dat je de capaciteit van de batterij x3 moet doen om de werkelijke stroomopname te berekenen van de startmotor.het jammere van de zaak is dat we eigenlijk te weinig praktijk krijgen,dit is dus een welkome aanvulling op mijn opleiding.blijven posten zou ik zeggen👍 want dit soort fimpjes geven mij een heel andere invalshoek
I'd guess oil dilution by injector body leak or excessive DPF regen led to partial seizure/damage of bearing surfaces.
thank you for the presentation in English for those of us too stupid to learn another language
Ha ha ha next year in Chinese🤣
@@Diagnosedan thats bluff lol.
When you spray flamable gas to the intake, you in risk of exploding intake. If you have open intake valve, even a glow plug can ignite mixture. So it is risky one. We are using spray for dash panels. You get softer explosion, when cranking. And also it smells nice :D
🤣🤣 Never happened to me and i've done it hundreds of times. 🤔
So crankshaft / con rod bearings are shot? Good Diagnosis!
I had exactly the same problem had to rebuild the full engine
Sibbat Ali hope it's al good now😉