HOW DOES A TURBOCHARGER REALLY FAIL?
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- Опубліковано 21 вер 2024
- What happened to the Turbo on my BMW X5 30D with M57 diesel engine.
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To my experience, the no 1 bearing killer is, as an example, turning off the motorway with a glowing hot turbo running at 30 000 revs, and switching off the motor. Then keeping the turbo spinning a minute or two with no lubrication. My practice, regardless of car/boat/stationary motor, let motor run for a few minutes at low rpm before switching off.
100% correct especially with oil cooled turbos ! Some water cooled turbos have an electric waterpump which runs after the engine shuts off this is the only exception to your rule. Also another thing that kills them is people hitting boost when the car is cold. Should always take it very easy until the water temp has been at 90c for at least 5 minutes. Just because the water is up to temp doesn’t mean the oil is!
Not bad advice at all!
@@GeorgeAusters thanks George also to add regular oil changes is key like you suggested
My 320d is on 221,000 miles with the original turbo, I change the oil every 5-6 thousand miles and also let the engine warm up for a minute before driving, I also leave it run for a minute before switching off
You need to make sure the exhaust turbine isn't caught in the exhaust somewhere. If the DPF and CAT has been gutted... may be it's in the rear silencer somewhere.
Enjoyed this turbo vid. Mates always took the piss in the 90s when I had a RS turbo which I would always let idle around 2 mins after thrashing. One time he reached over and turned car off as thought I was stupid for it. In the end I got a turbo timer
It’s can be the difference between life and death of a turbo
Yep, I too have been judged for letting our N47 chill for a bit after a journey, sometimes even small ones... At the end of the day it's my wallet not theirs!
yea a big reason many turbos snuff it is because people are not aware of the cool down practices after an intensive drive.
Yeah most people think it’s a myth
The map could have overspun the turbo, now the exhaust flow rate is massively increased due to gutting. No back pressure allows the turbo to over spin.
When are we going to see an update on the 320 will the suspect fulelling issue
Once this project is done👌🏼
The bearings have failed due to lack of oil changes. Also the worst thing for turbo's is turning the engine of before allowing to cool down. allow engine to tick over for a minute before turning of. also worth changing oil feed pipe and return or cleaning these pipes. Sorry typed before end of video but it will be maintenance and wrong oil over the years.
Yep I always give it a minute to cool-down after use👍🏻
hi man i was going to ask you of you can make a video of how turning on sport mode on a 2004 bmw 745li
George I am fully pulling you up on this, 'typically if you take your car to a dealership they will drop a nut down here" !!!! WTF PO, WHAT A STATEMENT TO MAKE !!! No the mechanic like me that has invested 50k in tools does NOT drop nuts down intake tubes, man you have pissed me off with that sentence in the video! WOW what do you think we do when your car comes in for a service like throw nuts around all day, no we take you wheels off fully inspect your bakes test your brake fluid, change your oil, check your suspension bushes and steering, lights levels the list goes on AT NO PIONT DOES IT SAY chuck nuts down the turbo, omg George what every mechanic/tech does is ensures that that car coming towards them and their family at shitty weather o'clock at night is not not going to skid out and fail and kill them all. Just a rant as I like your videos keep them coming x
my point is that I had a customer get in her car tonight and sit there wiping her inside of her windscreen to try and demist it and I suggested to put the fan blower on and she said "I don't know how to use it and it makes a noise" and at that point we all know the users of cars are the twats , lol like I said love the vids xx
Was a bit of a joke but I’ve actually had a friend who took his car to the dealer and they destroyed his engine by dropping a bolt into his intake
George I got to work today and was told that I have a turbo to change next week....omg Im filing it and sending it to you lol xx
As another commenter said, if your mate still has a dpf then i would imagine the impellers from the exhaust side are embedded in it
It’s gone
@@GeorgeAusters ah well iguess they ended up in the radiator of the car behind when the turbo decided to destroy itself then 🤣🤣
In a manner of thinking, exhaust impeller is a particle and as such would be caught by the particle filter.
BMW long life service schedules, thin oils like 0W-30...
Devastating fail. But i'm sure you'll fix it 💯
Let’s hope so!
Hi
I have a 320d E90 lci lately i have observed hearing engine noise inside the cabin i dont know if i have to be worried about it or it is normal
When i checked the decibles it was around 60 db
Please help if i should be worried about it or it is normal
Please help
Hi George are you sure the other turbine isn’t caught in front of the dpf? Maybe endoscope it?
Watch the previous video on this👍🏻
Was there any play in the shaft before the fatal test or did you not get as far as inspecting if?
I think the car was probably sick for a while and the test drive was just enough to blow the turbo.
Won’t all the scrapings of the turbo blades be in the cylinders now? Or should I say what prevents them from entering the engine block?
The blades from the turbine wheel failed. The turbocharging system is placed below the exhaust manifold by like 8-9 inches. So it would be very hard for the blades to be thrown up, against the walls of the exhaust manifold and also follow its curved shape towards the exhaust valves. Also the rotating turbine wheel and compressor wheel are mounted inside the turbine casing and if the blades detach, they will just hit the casing, not even the inside of the exhaust manifold tube.
@@legioner9 I was really referring to the scrapings produced on the inlet side, what prevents those from entering the cylinders. Will George not have to remove the cylinder head and remove any debris or at least examine the bores as well as just stick a new turbo on.
@@nigelfewster The same thing as I wrote above happens to the inlet scrapings aswell. Furthermore, the compressor casing has a only small gap between it and the tip of the compressor blades + the long curvy road upwards to the inlet manifold, including the intercooler on the way, plus the charge ducting. Therefore, it is highly unlikely for the scrapings to go in the engine inlet manifold and combustion chamber, regardless if coming from the compressor wheel or turbine wheel. So, yes, as you said, George has only to mount a good turbocharger.
I’d doubt they’d get through the intercooler, charge pipes and intake manifold to be honest
So you going with reconditioned or remanufactured ? ( dont go with reconditioned).
What’s the difference?
@@GeorgeAusters remanufactured is assembled in the BMW factory in complete sterile conditions, considering the speed and temperatures of these turbos its important.Every part is micro measured and if any wear is present the part is renewed, it's the closest thing to a brand new one. Reconditioned they change the failed part only in un clean conditions.
Isn’t the 535 twin turbo a m57 engine?
That would be a worthy upgrade and an excellent video if that’s the case?
It’s a big hassle to swap that over, new manifold needed, new ecu, 2 oil lines not worth the hassle really.
@@piovo5222 I’m after that conversion myself. An interesting thing for a you tube channel
@@Al_Pollock just put in a single hybrid unit from falcon turbos, 335d injectors, R90 pump and you’ll be over 400bhp and 900nm+
@@piovo5222 I’m just asking the poster to do a full job, having a 3.0 bmw x drive you may as well make the best you can.
That’s the best in my opinion
Honestly just cheaper and easy to buy the 35D
How's it going George I'm removing my active roll bars and steering of a e63 645i, iv got standard M6 roll bars to go on the car do you know if now I just need to swap the rack and pump and oil tank to just hydro ones and just pipe it up , I know I'll need to get some coding done afterwards but as far as bolt on parts go would that be it ? Thanks pal 👍
Best thing would be to remove all the pipes from the rack and block with bolts. The option will need coding out the car afterwards yes👍🏻
Use polys
@@leenevin8451 what do you mean pal bushes?
@@bmwd2083 polyurethane bushes. They’re stiffer and last longer. Prefect for anti roll bars and droplinks
@@leenevin8451 thanks pal 👍