Another no start.....
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Postmaster
Joined: Mar 2004
Posts: 3,897
Likes: 9
Originally Posted by oldbird1965
Yep, A couple thousand miles from home and blew a hole in piston #8. The chunk of metal went right thru my S366. I was forced to have a local diesel shop put in a Jasper motor so I could get back on the road. Expensive but I have to say the Jasper is running good and the new S366sxe spools really fast. Love the new truck! It sounds like your getting on the right path to figure yours out, good luck!
Laughing Gas
Joined: Oct 2019
Posts: 949
Likes: 109
From: Fowler Colorado
If you got a t500 pump I would definitely start at the ipr with your duty cycle that high. I considered that 369 for a while also. Glad to hear it’s a good power range. What injectors are you running?
Fleet Owner
Joined: Aug 2004
Posts: 20,419
Likes: 197
From: AZ
Wait. Did you get a new new truck or are you still running the blue ox? I'd be curious to see how a 366 would pull on my truck but the power I'm getting out of the 369 is unreal. I find it's a huge improvement over the 38r. It doesn't spool up as quick but once it does the power is there. And I find pulling there's no real smoke unless the rpms are below 1700. And below that I can usually keep it under control with the skinny pedal
What I said above is how surprised I was that the newer version of the 366, the sxe, spools so much quicker! Shortly after I blew a hole in my piston Darin did the same thing. The chuck of piston on his went down and damaged the cylinder wall, weird huh? He then built a killer motor!
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Postmaster
Joined: Mar 2004
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Likes: 9
Alright. New info. In my hast of reselling my ipr I missed a crucial part. I pulled it out. Redid it. And the truck fired right up. At first ipr duty cycle was in the high 20's. truck ran crummy but it ran. No glow plugs and 40 degrees. After about 10 min the truck smoothed out and ipr came down to 17% at 730psi hpo. I chalk that up to air in the hpo system. This trucks alway idled at 17. Not sure why. On high idle it's at 14.7 at 750 psi. Oil temperature is at 170 degrees which I believe is higher then it was the other day. So I'm now leaning away from it being an hpo problem. Where it died on me was acceleratin on an incline. I'm leaning more to the idm having water inside but haven't checked yet
Laughing Gas
Joined: Oct 2019
Posts: 949
Likes: 109
From: Fowler Colorado
Was the nut on the ipr loose when you took it apart? Whenever mine died under acceleration it was always in this area. First was the ipr. Second time it was the fuel bowl wire harness which has the wires for the ipr. I’d strongly recommend ordering an OE harness from Riffraff just in case that’s the problem. It started dying every couple days till I tried to clean the plug. Plugged it back in and no go till I got the new harness. Definitely worth the $80 in my mind
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Lead Driver
Joined: Sep 2002
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From: North Texas
So you do or do not have a fresh HPOP? My duty cycle dropped huge at idle with a fresh one. 17% is bad at idle, my clapped OE 15 degree pump did 14s, the Adrenaline does 7-9% at idle now as I recall.
Where are you at currently? I have a spare PCM and IDM if you are somewhat local we can pop in to try on the rig.
Are you still utilizing what is left of the OE fuel filter bowl harness to run the IPR? I junked all that crap when I did e-fuel. New IPR pig tail, Weatherpack connector for the two pins, some good copper wire. DONE.
Where are you at currently? I have a spare PCM and IDM if you are somewhat local we can pop in to try on the rig.
Are you still utilizing what is left of the OE fuel filter bowl harness to run the IPR? I junked all that crap when I did e-fuel. New IPR pig tail, Weatherpack connector for the two pins, some good copper wire. DONE.
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Postmaster
Joined: Mar 2004
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17% is high. I agree. Been like that since I put the t-500 in. Maybe it's a week ipr? I don't know. I got cut off the wires to the fuel bowl and capped them but still used the ipr wiring. Truck ran for 45 min with no issues today. I'll try again tomorrow
Cargo Master
Joined: Nov 2009
Posts: 2,560
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If I have to get an idm I'll try one another from someone else first. I picked up a tablet and hooked up torque and came up with 198 psi hpo at 84% duty cycle on the ipr. By this point voltage was low at 9.1volts while cranking. I'm going to see if a buddy has a spare ipr and maybe try that. I'm hoping mine just decided to quit. I seem to recall the ipr ran at 17% at idle a couple of years ago. Which I know is a little high and I'm hoping it's been getting worse as time went by till it finally decided to let go. After that I'm guessing hpop? Or an injector oring blew out? Anybody have other ideas?
