mowerman Posted 13 hours ago Share Posted 13 hours ago 20 hours ago, JoeH said: Also not sure anyone's picked up on them, but those 2 dalmatians are good looking dogs! Hell, I didn’t even notice the damn things I had to scroll back to see what you were talking about ha ha thanks for that but kind of following this. I really don’t have any advice, for this guy. Oh, I could think of except for the obvious everybody has already brought up. Maybe the fuel pump was dried out too long damage. The pistons inside last one I bought was $2500 exchange and that was 40 years ago. 237 Maxidyne Quote Link to comment Share on other sites More sharing options...
terry Posted 12 hours ago Share Posted 12 hours ago (edited) 5 hours ago, JoeH said: Sounds like there's some unresolved lemon issues going on, it only lasted 16k miles on that rebuild til they got fed up with it. Hopefully some old timers on here will be able to chime in. I'd get a hold of every Tech Service Bulletin you can get your hands on. This engine should be CCRS which is Current Controlled Rate Shaping. Basically the EUPs get fired in 2 phases, an initial one to start the burn and a second phase to complete the full injection quantity. Pre CCRS trucks just fired the EUP in one shot. EUPs are not interchangeable. Heads are also different, the pre CCRS I believe used a leak off line from the heads, the CCRS do not. Sure alot different than the old simple two valve mack engine! they would run forever with a little maintenence. terry Edited 12 hours ago by terry 2 Quote Link to comment Share on other sites More sharing options...
JoeH Posted 10 hours ago Share Posted 10 hours ago In case I didn't mention it, the EUPs push over 24,000 psi through the metal lines going to the head. DO NOT crack them to do cylinder cut out tests!! You will poison yourself with diesel fuel. Instead, you just undo one of the wires going to the EUP by loosening the screw and pulling the eyelet off the screw head. Screws are not meant to come all the way out. You will likely get a spark, no big deal. This will turn that EUP off, so you can see if said EUP is firing. If it doesn't affect the idle then it's not firing. 1 Quote Link to comment Share on other sites More sharing options...
tjc transport Posted 10 hours ago Share Posted 10 hours ago and you can get eup's that will not fire at cold idle, but work fine once the engine is warmed up, or rpm's are raised. i had one on the 05 427 like that. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment Share on other sites More sharing options...
Popular Post mrsmackpaul Posted 9 hours ago Popular Post Share Posted 9 hours ago On 9/28/2024 at 6:10 AM, mrsmackpaul said: If it was me I wouldn't worry about what any previous owner says may or may not be wrong I can understand the previous owner doesn't want any involvement, just get it off their place It is no longer their problem, it is now your truck, your problem All of that been said, maybe think about getting a jerry can and some hose and just run your supply and return out of that If you can make the truck run fine from that, you know the problem is in the tank or the hoses connected to the tank Paul This is may of come across a bit harsh My point probably is badly made I guess what Im trying to say is, this truck has been a issue for a long time and if the miles shown are correct it has been a problem for a long time The truck needs a fresh set of eyes, your eyes and hands etc with and whole fresh approach If you worry about what others have done before there's a real risk of repeating their mistakes and the truck becoming a white elephant for you as well Your that fresh set of eye's If I were you I would assume nothing and methodically work through and prove each system, fuel, air, oil electrical and so is operating correctly until you find the issue that has caused the truck to not of worked for over a decade Just some thoughts that may or may not help Keep at it and you'll get there Paul 4 1 Quote Link to comment Share on other sites More sharing options...
JoeH Posted 5 hours ago Share Posted 5 hours ago (edited) 3 hours ago, mrsmackpaul said: This is may of come across a bit harsh My point probably is badly made I guess what Im trying to say is, this truck has been a issue for a long time and if the miles shown are correct it has been a problem for a long time The truck needs a fresh set of eyes, your eyes and hands etc with and whole fresh approach If you worry about what others have done before there's a real risk of repeating their mistakes and the truck becoming a white elephant for you as well Your that fresh set of eye's If I were you I would assume nothing and methodically work through and prove each system, fuel, air, oil electrical and so is operating correctly until you find the issue that has caused the truck to not of worked for over a decade Just some thoughts that may or may not help Keep at it and you'll get there Paul Words of wisdom right there. If the former owner knew what the problem was they would have fixed it. Edited 5 hours ago by JoeH 1 Quote Link to comment Share on other sites More sharing options...
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