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It almost looks like the pump broke first and the gear teeth were damaged when it jumped out of alignment. Did you open the old pump up to see if there was any indicators that something possibly entered into it? If something passed through the pump, you may find it in the old filter if you still...

No problem. It sounds like your main ground is the problem. 12v only while cranking is a flag. The starter (engine) needs a heavy conductor to close it's path to battery ground as @DIVE DIVE mentions. I would leave that wire disconnected and perform a drop test on the ground side of the starter...

Here is what I found on mine. There are some small discrepancies with what is shown in the TM's. Basically, the ground at the engine stud closes circuits to the fuel heater element, water in fuel sensor, glow plug module and temperature sensor. I verified all with continuity tests and tagged the...

No worries. Heading to the shop shortly to work on my service truck. Will take a look and some pics on both sides of the fire wall. It is pretty much opened up to the bare metal with just the harnesses in place at the moment. In my mind, I am wondering if that ground wire (in yours) is connected...

The harness in my truck has that black wire clearly hanging out in that location. Can likely trace it back pretty easily if you want to know where it goes? I have not disturbed any of the electrical in the truck yet except removed the instrument cluster. I don't mind tracing others for you as...

Pulling glow plugs might help with increasing cranking speed but is not a common step in bleeding the fuel system? Unless you already have fuel up to the injectors, I would not recommend the use of ether to dry fire it. You are risking the possibility of broken rings, damaged pistons and even...

Hey Jack. Looks like you have your work cut out for you with all of the butchering that has been done on your truck. I just picked up the same truck as you. The only items removed, were the engine and cooling package. All electrical harnesses and components (less engine mounted starter and...

Looking to touch up some smaller areas on an M1008 with 3 tone. The colors are faded with several rubs on the hood and front fenders to bare metal, from what I believe, caused by a tarp flapping during transport by a previous owner. Have searched and read several posts on this subject and it...

Hmmm. Well thanks and yes, I will look into that before any changes to the original power are made. You are right. It would be a royal pain to have to back up my progress for the inspection after the repower. The RPO codes list it at a Tier 0 emission level due to it's GVW. Never thought the...

Thanks! The whole truck is in remarkable condition. It is my understanding that the original 6.2's were not a desirable option. I have a 5.7 built at the shop I am going to try in it. May look to go another direction if I'm not happy with that result. The truck is still under US title. Will...

Thanks, and yes, you nailed it! We were returning home (Terrace) with it from Kelowna. Pic was taken at a brake check not far out of Merrit a few weeks ago. It was -18 c that day. The traction and scenery was great.

Hi all. I picked up what I believe is an all original '86 M1008, less it's 6.2, recently. Looking forward to the wealth of resources and knowledge this forum offers while I put some life back into it.