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  1. 79gmccrewcab1t

    dinamic timing advance for the ve pumps

    Hey thanks for the info
  2. 79gmccrewcab1t

    dinamic timing advance for the ve pumps

    I found a video on you tube from the diesel stop about a dinamic timing advance plate made by M&H inc. Does any body have any experience with or know why these are supposed to be better than just adjusting the timing?
  3. 79gmccrewcab1t

    1st gen cummins swap,what type of intercooler???

    thanks for the info. No I want a auto that can hold up to what a 12 valve can dish out without dumping a whole bunch of coin into it so I've decided to use the 545 trans that came in the bus and go up on my tire size and gears to compisate for the short top gear and the way under normal low...
  4. 79gmccrewcab1t

    12 Valve out of a School bus the same as truck?

    I have one out of a 1990 bus and from all my research heres what I've found about them. They have larger injectors in the non intercooled motor. My pump timing had not been changed. Come stock with 180 horse where the pick ups came mostly 150. the 12 valves with the ve pump that is. their power...
  5. 79gmccrewcab1t

    1st gen cummins swap,what type of intercooler???

    MY rig for my cummins swap is a 79 gmc. Can anyone tell me what year make and model would make the best doner for the intercooler or would I be better off to order a new one from ebay or something?
  6. 79gmccrewcab1t

    VE Rotory pump removal

    Thanks I will take care of that before the engine goes in my truck
  7. 79gmccrewcab1t

    VE Rotory pump removal

    Hey thanks a bunch for the info. You know much on the killer dowel pin and how to fix that?
  8. 79gmccrewcab1t

    VE Rotory pump removal

    I am have to remove my injection pump on my 1st gen but I need to know if there is any secrets I should know prior besides a special wrench. I've heard something about setting number one cylinder at top dead but dont know if that was meant for the p pump or what. Is there anybody who can walk...
  9. 79gmccrewcab1t

    A few questions about 1st generation 12 valve

    Yeah prob would be easier with the engine pulled thanks again for your help
  10. 79gmccrewcab1t

    A few questions about 1st generation 12 valve

    K i'll do some surfing and check out that spring. I had seen those lift pumps before and was planning that with my next purchase. Before I had shut the engine down to pull it I noticed fuel had been leaking badly from the injector pump but couldn't see the exact spot. How difficult is it to...
  11. 79gmccrewcab1t

    A few questions about 1st generation 12 valve

    Ok so correct me if I'm wrong, I wont need to go up on my injector size cause they were larger to begin with? And another question,when I was driving my donor bus to the shop to strip the enging I noticed the RPM's were sitting at 4000 going 65.The previous owners said it could run like that...
  12. 79gmccrewcab1t

    Allison at 545

    Is there a lock up available for the 545 or am I stuck with the non lock up? I do plan on running a large trans cooler so I dont think the heat should be a problem. My 12 valve come with the trans so the only mods will be is mounts and a ford style divorced 205. Thanks for the info
  13. 79gmccrewcab1t

    A few questions about 1st generation 12 valve

    Cool thanks for the info. Can hardly wait to get started
  14. 79gmccrewcab1t

    A few questions about 1st generation 12 valve

    I am at the start of transplanting a 1990 non intercooled 12 valve from a school bus into my truck and had a few questions about this engine. From what I read cummins changed the injection pump in 1991 and added a intercooler to the 12 valve, can either one of these be adapted to my engine, and...
  15. 79gmccrewcab1t

    How many First Gen. guys we have?

    New to the site and new to the world of owning a 12 valve My truck it a 79 gmc crew cab dually,been planning this build for bout 7 years(divorce screwed it all up) just aquired a 12 valve ffrom a school bus.ID tag reads 8 of 1989. Will use for moderate towing, some highway but mostly in town...
  16. 79gmccrewcab1t

    Allison at 545

    First off my project build is a 79 gmc crew cab dually. I have aquired a 1990 12 valve and alison 545 trans from a school bus. Of course I would love to do a allison 1000 but its just not in dueable right now. I've done some research on this trans, pro's and con's and all I can find is it...

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