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I have a question regarding Top Dead Center Offset. I was scanning with an OTC Genesis, last weekend, and I did KOKO procedure multiple times. I got a different value almost every time! I was wondering if this was because of a mechanical problem (ex. timing chain), or something I was doing...

Does anybody know where I can pick up a tech manual for a DS4 IP? I would like to try to rebuild an old one I have. I guess the next thing is can I find parts for one? Any info would be helpful! Thanks, guys.

I need some help, fellas. My truck has been doing this intermittently, for about 2 months now. This morning was the worst, by far. I'll start it to let it warm up about 10 mins. before I go to work. This morning it stalled about 5 mins. into the warm up. Usually go and shut the key off...

I'll show you mine, if you show me yours...:D A few pictures of my install 1. Picture of the whole plate. (P.S. I don't like the scotch locks in the bottom of the picture, but I just found them. They are for the fifth wheel connection in the box, but I have never used it.) 2. Picture of...

Has anyone had to remove a evaporator core from a 96 GMC? Well, here are some pictures. I wouldn't recommend it! LOL But mine did need a good cleaning.

Has anyone used an OTC genisys? I have been given one for the weekend, and I was hoping to do some timing adjustments. I have figured out all of the easy stuff, just wondering if anyone can tell me more.

My question has to do with engine damage vs. timing and fuel. I would like to try the -1.94* TDCO, but my dad had a 6.2 that had cracked the heads, and said that timing had something to do with it. Can you clarify this for me? Is the -1.94* offset good? Will I do any damage to my engine? I...

Allright, I have a question about thermostat crossovers. What are the flow differences between the single, and the double. Is it significant? Is it a life or death issue with our 6.5s? I am putting a radiator, and high flow pump on my pickup, but I was wondering about the crossover. Is it a...

Another question from a :dr:. Are there block drains on our 6.5s? If not, what is the best way to drain them, aside from standing the truck on end? I am going to do some water pump work, and I plan on doing a full flush. I want to be able to get the flush and extra water out of the block.

My radiator just sprung a little leak. I was just wondering if anybody had any suggestions on type, style, brand, or material.

well, let me try this again. hopefully all can understand what i did. any questions are welcome!

i've been looking in tech library, but i havn't found numbers for IP timing, and TDC offset. can anyone point me in the right direction?

ok, gals, and fellas, i'm going to try to post how to install an injection pump on 6.5T. bear with me, and tell me if i have done anything goofy. was fairly simple once i stepped back and thought about it.

after reading forums, and old threads, and FAQ i've got an idea of the ins and out of my 6.5. but now i am at a standstill. i have a 1996 GMC 6.5 turbo k2500, and i love my truck. I am having same issues, surge/hesitation. I have replaced OPS, LP, PMD, put new 3" exhaust from turbo to tip...