Why Does This Truck Have Weak Jake Brakes? (SURPRISING!)
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- Опубліковано 17 вер 2024
- In this video was we are looking at a truck that has weak Jake brakes. The reason why is surprising and troubleshooting the Jakes is also discussed.Thank you for watching.
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Not everyone wants to put in the time to do it right. I'm glad you do. We need more of that.
These are expensive engines to do overheads on. Take special tools.
What is your address where your shop is at
I’m a student attending Wyotech right now training to become a diesel tech, and I find these videos very refreshing and assuring that what I’m learning in class is what I will actually be doing, and that I’m not being told bullshit by someone that just wants my money
Thanks Adapt Ape for sharing your Diesel tech knowledge, I always find your videos extremely useful. 👍
Comment of the week” If you don’t know what you’re doing leave these engines alone”. So fucking true!!!
Always useful info... I like the part where you say, if you don’t know what you’re doing leave these engines alone... 👍
Totally agree. Great words right there. Jim
Another great video. I don't work on big engines like those but, as a long time wrench person, I really love how you go about diagnosing stuff and fixing the issues. It's very obvious you know what you're doing. Stay safe, and keep up the great work. Jim
My first thought was incorrect valve lash. Ive also seen the wiring connectors become loose over time and they don't hit on all 6.
Good video
On behalf of many Owner operators out there I want to say .... THANK YOU VERY VERY MUCH👏👏👏🇺🇸🇺🇸🇺🇸
I like the problem/solution aspect of this video. Another good job.
I know you have a life and do this as a side gig. But you are hands down the leading authority on these CAT power plants and I sure wish you posted more and longer videos. Until then, I'll take anything you put out there. Cheers
I also wish I did post more, but there are a variety of factors that make it difficult to make videos often, that may change next year though.
Why dislike this video?
Good find...really bugs me to see the results of incompetence. People are supposed to be professional. They sure get paid enough.
I've run a lot of trucks in big fleets with those 3 position jake switches like the one you found. I'm not certain it is abnormal, I think that's how Kenworth Peterbilt and Freightliner have them configured from the switch manufacturer. It's weird but I've seen that on hundreds of trucks.
freightliner hasn't used 3 position switches in years. It's just high low, 6 cylinder and 3 cylinder braking
your videos are great. I'm an off road tech who works on cats and when I was an apprentice in school my teacher would pull up your videos sometimes. that c32 was probably out of a 777. thanks
Nice video. It amazes me how many times I've heard "my jakes stopped working", my first reply, "check the oil lately?" You'd be shocked how many times 2-3 GALLONS of oil fixes the problem. *facepalm* some drivers.
your comment is a face pal. you dont know anything about diesels with jakes. It can be low as anything. If there is enough oil pressure to register the gauge, tan the jakes wll work as normal. BEing 2-3 gallons low on a 10 quart capicity wont hinde anything. You are full of crap.
@@mikegrazio5376 Imagine saying being 2-3 gallons low and then saying it is a 10 quart capacity. YIKES.
Had the same issue in our shop on an isx cm870, multiple techs/engine harness, injector harness, jake switches and even a turbo later, popped the valve cover and found the jakes just needed rebuilded because the orings were cut and hard as a rock, remember the KISS method
CM870 don't have an injector harness
I don't think you could even say you jake rebuild as they only have 3 o'rings in the solonoids, hardly a rebuild.
@@Dilanom you're correct, meant the engine brake harness, don't take it literal
Guys, why am I so addicted to these videos??? I don't even own a diesel!
because there is someone who is competent is his field not only showing vehicle repairs but teaching newbies how and why diesels work. The destruction of the week always comes back to the lack of maintenance, mechanic error or parts failure. Got a voice like Mike Rowe that gives you confidence in his ability.
Maybe you can help! Swapped from a DD4 to 5EK with a Kustom Truck harness. Jakes came with 5ek engine. Were functioning sporadically. Checked adj twice. Replaced all 3 solenoids. Cured for a bit but didn't feel like they were working well. Now it's back to sporadic operation 🤷♂️
I appreciate your wealth of knowledge.
NICE ,UNDERSTANDING LSSONS,,ABOUSOLUTLY NOT BORING..THANK YOU.
I'm learning way too much about diesels. But you make it fun.
Thanks Larry, you watched that one quick.
@@AdeptApe yup...standing by. :) keep warm.
I have an three different trucks with three different engines that all have the jake selector switch set like that. One even has factory labeling showing it as such. I assumed they were all like that, but always thought it was weird.
interesting find on the jakes, had a issue similar on a m-11 Cummins, someone had over tightened the rocker arm support shaft, and cracked the support that holds the rocker arm shaft, the m-11s are kind of weird with their valvetrain, and the #6 valves were not sitting straight, and this caused the #6 Jake piston to bend and bind in its bore and get stick in the up position. took a few minutes to figure that one out lol.
Thanks for showing telling, learning I am thanks again have a great one see ya next time see ya bye.
Thanks for sharing your experience and knowledge.
Wow, very impressive!
Good one!!
Hi, just a great video like always keep it up, so instructive it helps me a lot with my rig problems in how to trouble shooting them thank you very much.
Some older trucks have low in the middle and medium on the bottom and high on the top...my truck is like that! I have a 94 KW T600!
Thanks for all you do awesome videos
Buddy, you got me laughing good, I needed that hehehe I like that , the destruction of the week ,that was so funny
"if you dont know what your doing, leave it alone" i say that quite a few times a day/week
patrick hallyburton I agree to a certain extent, at one time we all knew nothing but we all had to learn, the thing is learning the proper way and what I have found to be very difficult nowadays is a lot of companies do not want to give out any information because they want to make sure that they can get the money themselves. That’s why I am very thankful that there are individuals out there willing to share their knowledge. Thank you
@@jeffsimonar7161 to an extent, if you are way out of your league its better to leave it to someone else. 99 times out of 100 i see people cause themselves more money lost because they feel that they can just "figure it out" when they dont understand the basics. i see people take a 200$ problem and turn it into a 3000$ problem very quickly. that being said there is lots of stuff that can be easily taught and done with little training, its understanding the difference that is the key
Great job man!
I thought that peterbilts with cat motors just set the switch up that way, the switches in ours are the Same; medium-low-high. Never knew that was wrong.
no. they are not set up that way. none are. you must work for that company
Now that was short but to the... point
My 2008 Cummins ISX had weak jakes, turned out to be worn rocker shaft detents. Overhauled the engine and replaced the worn parts and...viola, problems gone! (was time for an OH anyway)
My kenworth with acert had weak engine break later in winter they were holding only 1 cylinder found wire from switch to ecm was green rusted and loosing volts but couldn't find where it is tried a lot so I run new wire from switch and was amazed with engine breaks .
On my cat powered Kenworths ths how the jake is high is top or all the way up low is middle and medium or 2 on the bottom of the toggle position select switch on 5 Kenworths
Haven’t seen you for a while, good look
I have a face for radio and a voice for the deaf. Thank you though.
you gay brah?
@@mikegrazio5376 are u
I'm always suspicious when I find silicone were its not suppose to be. You think is this a hack & patch job?
I think it's someone who doesn't have confidence in the genuine seals
Maybe they come across it as a common leak and do it now before it causes a mess
Very good video.
I have c15 acert TT 06 379. Weak engine brake. Switch works good replaced seloinods and replaced wiring. Also replaced O rings and springs inside engine brake rails. had overhead done. Still same thing. My turbos got over 700k on them. Can turbos be the issue? Not much. Shaft play. But I have noticed the spool sound isn't the same.
All I can say is wow...some mechanics....
The guy who "fixed it" before Josh fixed it is exactly the kind of guy who gives auto mechanics (and Diesel mechanics, in some cases) a bad name.
Fluke 87-V for the win!
I drive a truck with a retarder on the gearbox which works great with 110000 pds gross down 7% ers here in europe. These roads are cleaned round the clock and salted when snow and ice too so i can use it almost all the time.
I'm trying to figure out setting the jake brake lash on the C11 Acert. It's in a Sterling.
Could you make a video about the 3306, im thinking about getting a tractor with that engine and don't know much about it. Thank you!
I will be making one in the future, hopefully soon. They are a good engine.
@@AdeptApe Awesome, i look forward to it! Keep up the great work!
What type of marker are you using to mark the bolts after you’ve torqued them?
My c-13 in third stage goes to second stage the back up to third. Constantly fluctuating.
almost all the trucks ive driven have the jake switch set up medium low high.
Hey Adapt Ape nice to see a new video from you. Some times it is interessting to see what other mechanics do and the only thing that comes in mind is why :-D
Yhanks!!
I drove a 3406b that had weak jakes. it just made a blubbering whistling noise like a constant-wet-fart. haha
Maybe it was a Pac-brake, worst possible choice for an engine brake on a Caterpillar engine. They wanted constant attention, and a slider kit installed every weekend to work correctly.
So on a c13 c15 your saying put a half a turn preload when adjusting
Thank Sir more knowledge....
Good video.
Hello I have a 98 C12 cab and it's a replacement motor the original one blew up I live in Detroit Michigan and I want to install the jake brake back onto Michigan cat does not stock it Novi and brownstown Michigan and I found one from engine exchange and Michigan Cat don't like that I can get it at a decent price you know you know eruptible shop besides caterpillar can't do the work and do it correctly with no problems and stand behind their work
Buddy and Piper should be good mechanics too...
Speaking of Jakes, now that I've experienced them on the new X15 engine with Eaton Ultrashift Plus, they will put you through the windshield and lock up rear wheels if not careful especially empty. Now that I'm back in my DD S60 truck, my Jakes are just noise makers by comparison. I don't feel any retarding effect. Why the difference between two similar engines I don't know but I'm not touching mine since it just recently had an overhead ran by Clarke Diesel. My former 1992 Pete 379 had the 3406E and it too was more noise maker - less retarding.
You’re right about the X15. ISX/X15s have the strongest Jake I’ve ever felt
@@isaacrecord6162 - LoL, when it happened, it scared the living hell out of me. Almost 40-years driving big trucks, I've never experienced Jakes so strong before. This was a brand new rental truck I rented while mine was having major work done due to exploded turbocharger. The seatbelt saved my life that day.
I had one where one rocker shaft installed upside down.
Did it destroy the shaft and rockers? Had someone do that on a 3516 engine once.
Yes it's was 2ws. I replaced the shaft and rockers for the one shaft. They weren't as bad as you would think. The customer said it ran like that for 2 years. I also installed the updated hold bolts.
On this one they would hit for 1 to 2 seconds then nothing.
How to remove a lower valve cover on a C11 2005
I’ve been watching your channel for a while now and find your videos very interesting. I watched your c-13 video on sensor locations but did not see where the iva pressure sensor is located. I got a c-11 with a code 95 on a Peterbilt and from the research I’ve done, the sensor seems to be the common culprit. So I bought the sensor but don’t know where it’s located. My local cat parts dealer couldn’t find the location either on the cat website. The part I bought is a 224-4535. I’m wondering if you could point me in the right direction. Thanks
It's under the stupid valve cover on the C11 and C13. If you rewatch this video you can see it towards the end of the video plugged in to the valve cover base by cylinder 1.
@@AdeptApe okay I will rewatch. Thanks for the reply. I figured it was under the valve cover since I couldn’t find it anywhere else externally. Just wanted to double check before I dove right in. I always make sure to give your videos a thumbs up 👍🏼 Very informative. Thanks again
Not sure on a C11 liter with out a serial number, they are rare. But on C13 and C15 liter you have two types of IVA oil psi sensor's. One with a pigtail and one without. The 15 liter they want the newer one and you have to buy a harness to make the connection.
C13 depends on serial number.
@@johngoldsmith6629 yeah the sensor was ordered per serial number and that’s the number they came up with. It did come with the pigtail harness, but for whatever reason, not the small oring. Had to order that separately
@@skywalker7228 That is normal, be careful and don't over tighten the sensor, you will damage the circuit board inside. Best to use a 12 point crow foot so you wrap around the nut. A open end wrench will side load two sides and damage it. Or take a box end wrench and slide it over the wire. They do show it with and with out pig tail sensors. Be careful and SIS has known to be wrong. As of right now a new version is out and it has errors.
Hey I'm first view and that's what's wrong with my truck
What I've seen over the years, the for profit schools don't really care if you learn anything or not 🥺
Hi buddy, jakes of my wester star 2022 are soo weak ... Company could'nt figure out what the problem
is wasted my time and money. They changed the solenoids injector rocker arm and reprogram it but nothing better
Gotta love it. Just finished watching your aftertreatment class video, probably a dumb question, but by factory password do you mean the same as the SIS login? Just curious because where I work we have E.T. but I'm not sure the capabilities are the same? We are not a dealer but have a lot of Cat equipment. Sadly only one of our "Michigan gravel train" trucks is still Cat powered. Used to have redhead N14's and 2 3406E's when I started. Anyway I appreciate any help to clarify this. Also gotta love a hammer mechanic with red silicone.
Well a SIS login doesn't mean you can acquire factory passwords. You do you a SIS login or CWS technically is what Cat calls it, but then you have to be setup in the Feature Protection System of Cat and as a customer that isn't possible unless you work for a dealer.
@@AdeptApe That's sort of what I figured. Thank you for replying and so quickly at that! Appreciate the time you put in and help you provide. Take care!
I have an unrelated question for you. I have a 3406E and want to know what is the purpose of the exhaust manifold inserts? It seems to me they are restricting the exhaust flow from the head. What kind of damage, if any, would occur if they are remove and replace with just a flat steel gasket?
Man am about to buy a truck with this engine 3406E 2ws are those good and reliable engine
It’s freshly rebuild and the guy asking 27k for that truck ...
I have the c-15 dual turbo and I really hate to let go , No issue since o bought the truck 3 years ago
@@cryptoanalysts5793 I personally love the 3406E because of the single turbo setup. To me they are pretty much indestructible because they've been around so long, and they have all the bugs worked out of them. Great engines in my opinion.
@@boogieman3165 I had 2 guys said the same thing a bout this engine , they say it’s 10X better than the dual turbo C 15 and way more simple
I will go a head and get it man , am tired from the ELD shit ....
I'm not sure why they use that insert design instead of just keeping the exhaust port a uniform size. The head is machined to fit them though and they match the exhaust manifold sizes. I'm sure some engineer thought it was a good idea for some reason and perhaps there is a very good reason that I'm unaware of.
بكم جهزالكبيترفحص much is the house ready? Check
Man I wish you were my mechanic
I'm having the same issues with my C-15. Local dealer that did the work said some Jake's hit harder then others. You want to check these things out?
I have weak Jake's also but I have a n14 lol. I have 1 bad injector I'm guessing that might be the culprit.
What marker are you using on torqued and adjusted fasteners? I need to start getting in that habit.
I always thought Cats just had 2 stage jakes. Thought this was a Cummins because it had a stage set-up.
The 3406B engines had only two housings, but the E models had 3.
3406 A, B and C, 3306 , B and C are low, high. Starting with full electronic engines, 3406 E thru C15 BXS, 3176's, C-10, C-12, C-16 and C-18 used Jacobs Brake. Starting with C13, C15 MXS, NXS and SDP Cat used it's own brake made in with the IVA assembly.
3306 engines you had to be careful, C336 brake used 7/16 push tubes on all serial numbers, including 9TL and 7RJ.
336A was used on a 9TL or 7RJ used 1/2 push tubes on the exhaust. If you mixed them up and used the smaller ones on the exhaust they would fold up like a pretzel.
@@johngoldsmith6629 😆 I'd be lying if I said I understood all that, though I do understand it enough to get your point.
@@SOU6900 Basically fully electronic engines (engine that has injectors) have three stages. All mechanical and PEEC engines (engine that has nozzles) have two stages. Small engines used a flapper on the exhaust.
@@johngoldsmith6629 what about Brakesaver? And what does PEEC actually stand for? I can't seem to find the answer with Google.
That switch is how mine is low is in the middle medium is down
You are the second or third comment saying that on this particular model has them like that.
I got e7 running on one head ,need Jake head adjustment is that a big job ?
Thank you Josh if you could help me please thank you
When I'm using my Jake's on my 2019 isx15 I'm getting a lot of vibration, it seems like in the engine it self. I had kenworth do a overhead valve adjustment and adjust my Jake's, no difference... and they didn't say they found any problems. Any ideas what it could be?
I have a question, can I replace my BXS PACbrakes for MXS engine brakes? Do I have to change the Rocker arms?
My C13 can’t hold 75000 but I know is working just not enough, i did valve adjustment and have it checked. My first c13 just don’t know if this is normal.
I got my truck fixed from Volvo dealership
I spent a lot of money and they worked on injectors , timing gear plate, transmission
Now engine brake ,
It’s not working , only gears going down when I apply the engine brake on 2 and 3
Please advise
electrical for Jake's on older machines are a pain.
That’s what happens when you “have a friend” that can mechanic for less 🤣
Low oil pressure could cause that problem?
What are y’all’s opinions of the diesel laptops diagnostic software and hardware?
My d60 jakes are crap. Totally. Can we do something about it? Ty
Can you make a video on explaining why you get turbo boost while braking with your jakes?
I'll explain it as simply as I can. Jakes work by holding the exhaust valve open very slightly during the compression stroke. This prevents the compressed air from behaving like an "air spring" because it can escape from the cylinder thru the slightly open exhaust valve. In effect, this forces the engine to behave like a giant air compressor & of course it takes a good deal of energy to compress a large amount of air. That's where the braking force comes into play.
To answer your question, the escaping air travels at immense velocity & pressure past the exhaust valve when the Jake is activated (it goes supersonic--that's why straight pipes really talk when the Jakes are on). The velocity/pressure is great enough to spin the turbine faster than it would if the Jake was not activated. A faster spinning turbine wheel spins the compressor wheel faster, so you get boost. It's also compounded by the fact that the engine isn't really wanting or needing the extra boost pressure being developed so it can cause the gauge to quickly spike.
That was my exact theory but I figured I’d like to hear it from josh but thanks for sharing the knowledge.
My truck looses power and white smoke when Jake are on. Jake off runs smoothly. What could it be ?
Hey Josh, on my KW my Jake brake selector switch goes (high) 3 up, (low) 1 center, (medium) 2 down. So maybe that switch is correct?
Where u located I’ve been having jakes problems for half a year now and a really rough idle can’t get anyone to fix the problem
Bro
Do you have to leave the feeler guage in the valve, while adjusting the engine brake????????????????????????????????????????????????
hi mate is it possible to re torque head bolts on a 3406e to stop a small coolant leak
Hi, I really enjoy your videos. Where is your shop at? I want to go to a pro. Thanks
what software are you using? ET?
Smash that like if you were the mechanic that fudged the motor all up
hi bro. i have detroit 60 series 14l engine. when i using jake brake borning oil so much, around 1000 mile i am puting 1 galon oil. What do you think poromlem is?
Any truth to the statement cummins mx jakes hold back better than c15 cat 3406's? My mechanic says its normal for my 03 cat to have weak Jake's.
My Jake's on my c15 are similar to to this my jake only works on the low setting or medium setting I have all three when the truck is cold..but it's throwing the check engine light and now it's saying open jake brake circuit I replaced the setting selector and that didn't help it...any idea whats my issue
Who the hell uses low and medium??!!
I hope someone can help me my truck sometime as full Jake’s, but in the middle of the hill, the Jake’s goes weak
I have N14 Celect and nobody wants to be bothered with my jake and it pisses me off!
Dude, there is definitely nothing wrong with the jake switch position. Every Pete with a Cat I've driven has been this way, lots of em.
Yeah I came to say this. Kenworth is the same. Maybe this guy should heed his own advice
@@brentpoole1371 My Pete claims it is low, medium, high. Per the book. Not medium, low, high.
Geesh, go find that hack mechanic and take his tools take'em to the pawn shop!
Hi Adept Ape , I have I problem with mi c15 mbn model runs rough after fuel gets hot only on low idle!
Any idea what could be , thank you!
I change all fuel lines and fuel transfer pump, adjust injectors and noting change!