The world would be so much better off with people like Warren in it, people who take pride in their work and do the right thing for their customers. Good job Warren.
Hello Warren! Mr Hewes here! Not sure if you’ll see this message. But first of all thank you for the kind mention! Also I’d like to thank you again as I was watching you rebuild the transmission on a John Deere 4050. Cut a long story short. I ended up buying an abandoned 4440 of a buddy of mine after watching your videos! We are currently halfway through the rebuild, I picked up so much from your videos! Il be doing an update on it soon Il be sure to mention you! If you ever find yourself in UK swing by!
I used to be a field service mechanic..this is exactly why i finally got out of it..too much stress trying to placate too many customers with too little appreciation of the amount of work involved in diagnose/repair of literally every year make and model of vehicle or equipment. You are a rare individual sir, and I compliment your integrity.
I appreciate that you show when stuff goes wrong, like real life. You could have skipped recording this and said everything was fine. This is why I will always watch your channel and have research for what you’re doing. I wish I could help some way, but you’re the expert in this area, and I would just be guessing. Thanks Again, Warren.
Updated camshaft does not use shim per parts bulletin PB00256. Early cams had damper and shim, then shim only, now cam pilot is sized so shim isn't needed.
But having the shim on with the updated cam, could it be causing the tone wheel to be pushed out too far? And not be affecting the actual mechanical timing?
Such a dedication to fixing correct learning and not giving up. Qualities that are very seldom found in a heavy duty mechanics not to mention the added frustration of videoing. Everyone could learn from you Warren
Don’t beat yourself up to much, shit happens. I use to be a independent field service mechanic. When your touching the amount of stuff that you are it’s easy to overlook something sometimes. It sometimes happens when we’re tired and being pulled so many directions. I used to have equipment pulled apart in the shop and then have to drop everything to make service calls. It was maddening!! I hung it up several years ago but kept my truck so to work on my personal equipment. Being a independent mechanic is nothing like working in a dealership or multi employee shop where you have a little more time to breathe, and other mechanics to bounce ideas off of. Keep doing what you’re doing, you’re doing fine!
Hi Warren, Former Peterbilt DTM here. The nose of the camshaft has been changed on the service parts to be thicker and no longer required a tolerance washer. Measure from the retaining groove to the cam nose mounting flange. Washer likely not needed on this cam.
I thought this was it but as I finished the video he is back at the vgt…. But the cam update is still curious how and if the service bulletin or other covered it.
@@markbrandon7756 According to another commenter there is a part bulletin for the updated cam #PB00256. Would You imagine the corkstuffers at Paccar include that information with such a expensive and critical engine part ?
I have run into many of the same problems with "who the hell designed this?" with the jet aircraft I worked on for years. I had to work with the "engineers" that designed the F-16 and when I asked them if they ever talked to mechanics that fixed these jets and they said no. No wonder.
Your ability to keep your calm, on youtube or in general, is damn amazing. I sure wish I lived closer to you, to help out.. I feel your knee pain everytime you gotta crawl out from under that truck to get a tool, etc. Kudo's to you for your determination.
Warren, why does everything have to be so fucking complicated anymore? Sensor this, sensor that, regen,dpm. You are correct about common sense. You said it about fixing it. Looks good on paper.
Warren this is tough on you but it's U tube gold because seeing you deal with the diagnosis of a difficult problem increaese our understanding of how these engines work. Thanks for taking the trouble.
Watching from Australia. The anticipation waiting for the next episode is better than most TV dramas! Great methodology, knowledge, but also humility and humour. Reminds me of when I replaced half the components on my 70’s Holden and spent weeks chasing a problem that had it stalling every time I turned left - turned our to be a faulty brand-new ignition coil - horizontally mounted, it obviously had insufficient insulating oil in it, and turning left was exposing windings internally and allowing the HV side of the coil to arc to ground. Put the old coil back on - solved!
Someone else mentioned that the spacer is not used with the updated cam. When you had it behind the cam gear it moved the tone wheel back out of alignment with the cam sensor resulting in erratic cam signal confusing the ECM. While the tone wheel doesn't mount with the bolt holes the spacer does and the space makes no difference when in the front, it does make a difference when behind the cam gear.
If I'm following you correctly...Warren, fitted the spacer behind the cam gear, (transmission side) not between the cam, and cam gear, and shew that it didn't actually affect the tone wheel in any way ..
Looked like the tone wheel still mounts to the cam gear face, fitting through the spacer (minute 12:30 or so disassembly). But I'm getting your point about the different measurements on the old vs updated cam.
@@macbeth2354 I think partial reassembly and then removing the cam sensor and looking in / sticking an inspection camera in to check the alignment is needed. It seems almost certain now that the tone wheel is not getting properly aligned with the sensor. Whether it's due to the current spacer, or possibly needing a different spacer or tone wheel to match the new cam.
I would love the opportunity to shake your hand one day. We’ve all been in these situations where you just hate to have to figure out what’s wrong. You don’t know if it’s your fault or something else. Just weighs so heavy on you. Makes me wonder sometimes if a 72 hour hold at the hospital would be worth a vacation. I feel it’s in these moments we find out what kind of man we are and I just hope I’m able to stick it out like you are. The amount of perseverance shown is bewildering. Keep being you.
Keep going Warren ! when you have it down to individual parts you can build it properly ! You have a ridiculous amount of patience mate. I too like Mr Hewes, also Marty T who will have a go at anything as far as I can see ! just watched him fixing an electric hub drive he’s putting in an ATV. I think your problem is going to prove to be Electrical, I’m sure that one switch is not letting another switch operate for some reason that only an Italian engineer would understand. You did not waste today’s work, you made sure of a thing and fixed a mistake, has to be good. Again,good luck mate.
Really Appreciate and Enjoy your Videos, Warren. Your Troubleshooting Skills are the best I have ever seen. I am looking forward to seeing what you find as the cause. My luck would be it’s the wrong cam or something update that screwed everything up. Thanks Again for dragging us along on this adventure.
That cam would be comming out and going side by side with the original if it were me, but im only 2 3rds through the video so far, but i had to look see if anyone else thought the same.
Rest assured Mr Hewes knows who you are, Warren. A bunch of us recommended your channel when Joe was trying to fix a John Deere power shift tractor. Those guys are a riot. Make sure you watch the video where they drag the Cat excavator home.
We’ve had one in the shop before where we had the same situation checked timing again like you did, turned out both new unit pumps were bad and once replaced it fired up.
Mr Hewes is a Farmers son. They act a bit daft , But he really knows is stuff on fixing military vehicles. I've not seen your links for two weeks. Just had some pop up. Unusual.
Measure from where the mating side of the timing cover (where it meets the back of the block) to the center of the cam sensor head mounted in the timing cover. Then you will know where you need to locate the tone ring, as far as spacing.
Warren, One thing to do, is unplug all the injectors and check the resistance of each coil. One could be shorted and pull the drivers down inside the ECM. I had an engine do this one time and caused erratic injection timing, and ultimately a no start. Had no codes as well. Was a Cummins engine though. Crank no start with no codes and no smoke. Once I found the shorted injector coil, I left that one unplugged, and the engine fired up. When you have cam or crank unplugged, it wont fire injectors, so you'll get normal cadence cranking. I feel your frustration, I really do. Shop owner myself.
Hi there Warren. It almost looks like the new cam has been beefed up, so as to do away, with the spacer washer, in which case, fitting the washer could, space away the tone ring, from the sensor. Thing is, it ran initially, I think you said in an earlier vid, so the EGR valve is looking more of a possible answer. Good videos though, and fair play to you for posting. Most people only show their successes, and WE ALL, fu.k up, as WE ALL know !!
Modified parts should never be sold without the necessary changes to the fitting procedure and details of the modification being enclosed in the packaging.
You hit the nail on the head @3:40. I am an engineer for a large equipment OEM and im in my 40s. I am one of the few that works on equipment in my spare time and grew up doing it. Most do not. And the younger group coming in rarely have any hands on experience with equipment or working on things. It doesn't look like it will get any better. And us older experienced engineers can''t catch all the serviceability issues and even if we do, we get overuled by managers who say thats a nice to have. Bigger flywheel housing costs more money so some manager with no hands on equipment experience probably nixed that because of extra cost!!!
You have been dedicated to always making thing's right, and figuring out the problem, hope tomorrow is the fix. You are doing well with all the frustration, i know a couple guy's who would have been so mad, they'd have thrown shit everywhere, and would have about had a meltdown over something like this. G-d bless, hope you got it.
I can see why you like watching mr. Hewes on the tank stuff he does quite well with what he's working with. Hope you get this conumdrum sorted out enjoyed watching you
Mr Hewes is a good RU-vid channel to watch. You made me laugh when you were talking about engineers make thing you can’t work on. And the manufacturers are to cheap to build it to last.
My hats off to you I’ve been wrenching for 11 years and soon I’m changing careers and becoming a truck driver. Have a lot of respect for those who still are repairing diesels. Im not longer interested in throwing wrenches at these trucks any more the money is not there at least for me.
Would be cool if Warren makes video of tooling he uses, like some tools he loves etc. There are lots videos on RU-vid with toolbox tour and tools reviews but would be awesome to see that kind of video from real warrior mechanic like Warren
Thank you for the video Warren, really glad no AG tractor manufacturer is that dumb enough to have a Paccar, kubota might if they stopped using their engine's.👍
I follow Mr Hewes, they are good bunch of chaps, really funny, they get it done, not forgetting the dog Ted! Every day is a learning day, thanks for sharing, you probably never want to see another Paccar engine but for the majority of people who watch your channel, in our eyes your the expert. I remembered you talking about the Cummins EGR issue, just took you a little longer to get there. I making a presumption that you fixed it! I hope your customer doesn't watch this vid? If your short on the labour costs for the job. I'm happy to make a donation? don't expect much 😉
Just throwing this out there… if the 2 unit pumps are bad the engine will not start. They are very sensitive to dirt and debris. The engine is capable of only running off of one good unit pump, so you could try just replacing one. Just a thought
You have hit the nail on the head Dirt and debris ...I have been working on the PACCAR product in the UK in DAF trucks ,,The tolerance nowdays in the fuel system are so tight the least piece of dirt blocks them...I would say the pump units are ok as he is getting rail pressure ,so much that the pump units have went in to a high negative correction , this points to blocked injectors ,,I have seen it a few times ,the engine will start run briefly then it will not start again..I have in one video gave all the pressures and what happens from the manufacturers troubleshooting ,,but he either hasnt read it or is not interested ..For all it would take to send the injectors for testing ,would be cheaper than all the effort and guessing
All credit to you Warren for filming the problems mechanics have to deal with. When things don't work you waste so much time second guessing what you did to try and figure out what happened. Plus being self employed you end up working for free. You do an awesome job. Keep up the good work mate.
Words cannot make a COMPLIMENT HIGH ENOUGH for your level of knowledge and Professional and Personal dedication to DOING THINGS Right and Figuring out issues and z problems !!!! Great Work Again !
Agree about Bruce in Aus's channel. Like the video of him getting a Gardner engine started. They are the engine which the UK bus and haulage industries were built upon from the 1930s to the late '80s early '90s. They had their quirks and their faults but they were a work of art.
i got one at work now, about 5 hours in. lost one leg of data link to the acm. no room on a plow, cursing and carrying on. this humbled me really quick. i wish i had 1/4 of your determination
Well, I guess I’ll be working on this for the rest of my life!” Said calmly. Damn but I love those zingers. On a different topic, Warren sets the camera and the light perfectly each time. That’s a lot harder than it looks. I know because I’ve tried on me work. Happy New Year Warren to you and yours!
Keep up the good work warren you’re RU-vid channel is one of the best I watch if you were no good at your job you’re garage would be empty It’s always full thanks for the great content in the garage and in the field 👍👍👍
I feel like the engineering behind these machines absolutely is designed with the mind of how to put them together. I think they make it purposefully difficult.
I just experienced something similar. Replaced a Camshaft along with all the tappets. Started the truck up on Friday and it idled rough as if it had a misfire. Sat over the weekend and could not get it started. Had synchronization on my Cam/Crank. Rail pressure and Low Side Fuel pressure good. Exhaust gas pressure normal (No restriction). Could hear puffs but just would not start. Spent all morning and could not get it to go. Had to use a DAVCO/Eaton priming tool pushing 60 PSI to prime it for over half an hour. Could see air bubbles in the tank return and eventually it settled down and I had no bubbles. Had to crank a few times after and it started but was slow and had no throttle response. Let it idle for 5 minutes and it straightened out. Regained pedal response. Ended up having a misfire due to an Injection that is leaking. Truck starts up no problem now. Might be worth a shot to throw a primer on it and let it push fuel through the system for a good while!
When I worked on a Polaris 400 Ranger. Rebuild the piston and upper head etc. All together and it wouldn't start! Redid the time even took it half way down to line up the timing chain. Started up finally then died! I realized after the 10th time tearing it down that the woodruff key had sheared off so the flywheel lost time! I was so upset that I didn't think about that being the problem!
I feel your pain man it must be so frustrating with people making stupid arse suggestions making you doubt your self I have no doubt you will solve the problem best of luck man
Great video Warren, hope you figure out the issue mate, also anyone else using headphones and the audio on THIS video is only coming out of my right hand side of the headphone, don't know if its just me, cheers.
I notice Warren your using a Vevor impact? Jus got my new 3/4” gun w/ set of 3/4 sockets,haven’t used them yet,soon,never had 1800 lbs of blast,hope I like it, now back to at hand. Well,seems your closer to the real problem, I’m convinced and trust ways about this Warren,your the guy to fix this, we’ll see next day or so.
Warren, we haven’t heard any sling blade in awhile, I’m guessing you start talking to this Paccar the right way with a lawnmower blade in your hands it’ll submit!😂
Hi Warren, Bruce is awesome, and so are the guys who work on the tanks here in the UK, if you saw the Leyland Martian video I can confirm that by UK standards that truck is a monster.
I am an engineer, but I design civil works like roads and utilities now, not machines. I did work as a tool ,and die machinist , automotive and heavy equipment mechanic (much like Warren's work, but thankfully got out just before all the electronics and emissions BS really came to the forefront), engine machinist / builder, and machinery / industrial / manufacturing machinery designer / builder for many years and can say many mechanical and industrial engineers I worked with had never learned or attempted to repair anything in their lives. The audacity and narcissism most engineers exhibited while defending their poor design choices and process decisions when called to explain why things didn't work / fit or couldn't practically be serviced or repaired was venomous. Once whatever design work had left their desk, trouble stemming from their lack of care and foresight was always someone else's fault / problem further down the stream.
If all design engineers were forced to work on their designs, things might change. But until then the engineer has to suffer the designers "pretty" looking piece of art that always looks better than it functions.
I took Mechanical Engineering because of how horrible Farm Equipment is designed where it can not be worked on. Still, Canada could be better for manufacturing as the government has sought to tax companies for them to exist.
Same here. I watch *RU-vid almost exclusively.* Especially channels *similar to this.* I care almost nothing about any television shows anymore. (I'm happy to say ;-) It's mostly *overproduced garbage.*
I would be ashamed if my son was the engineer of this piece of crap. All the money spent on schooling and this his best. Good luck keep us informed on your progress. Thanks once again for sharing Warren. Hang in there!
How funny...just wated a mr hughs vid, will check out the guy in aussie now... Warren thanks for bringing us along on this one. Appreciate all you do. Thank you
like most on here, wish i could do more to help.. really feel for ya man... what a f@#$&n pain in the ass ...milk truck around here swapped out that thing and put a CAT in it i think,cause they were sick of the paccar junk..there will never be one around here...least while im around..but anyway,. hope u have a good day today feller 👍👊
I'm a sucker for a mechanical mystery and I'm glued to my seat. Sorry it's at your expense, this is a real tough pill to swallow. Just know that those of us who have been there feel for ya here. I know you'll get it figured out.
When you crank the engine do you get white smoke out the exhaust? Yes would be a timing problem, no would be a fuel problem which is what I suspect. When truck initially come in had a code for small fuel leak. Nothing external so had to be internal. I believe you said the high pressure fuel rail pressure was considerably high now. High pressure there would cause your injection pump rollers and can premature wear so this may have been going on for a while. Injector line must be seated correctly and torqued correctly or will leak across to the return and won’t fire. If this was your problem you wouldn’t show high pressure. Try to determine which cylinder is firing with a thermo gun and then track injector line back to rail and start looking for a blockage in the fuel rail. Could even be a pice from old injection pumps. Also for shit and giggles try starting with one of the injection pumps unplugged and then the other. I’ve heard of them running on one pump but not with the other or both plugged in. Injector line go bad on these is common and can leak internally. Should have about one thread exposed when these are seated correctly. If that was the case you would have low pressure and your sensor would need to be bad since you’re reading high pressure. Premature pump lifter wear still sounds like pressure and that would need to be a blockage or bad high pressure regulating valve. Good luck.
Another thought, too high of pressure with new injection pumps maybe from a stuck pressure regulating valve, maybe above working limit of injectors and can’t open when pulsed. Unplug one pump and try.
There may not be a dollar for you anymore on this job, but there's shit load of valuable knowledge. Not blowing smoke up your butt Warren, but this is the reason you're so good at what you do.
I dont claim to know much brother and i haven't watch all the videos on this truck that has been dragging you threw the mud but i know your stuck on that uneven crank and im with you on that but your timing is right i believe you might have a fuel injector out what if you try caping off fuel injectors maybe you have one completely out or over fueling or returning to much fuel like in the Cummins engines or your overhead is done incorrectly iv done it many times were i followed the wrong procedure and had something similar ither way i will keep you in prayer i know you will figure it out its just that journey to find the answer is all up hill with no water or shoes sometimes.
Hey up mate i feel your pain on this have watched your channel for quite a while and full respect, nice to hear a shout to Bruce who i came across in last month or two, he has such a relaxing way about him, you are of that same stuff mate
