Yah that goes with the free gsk... mine was like that when i got it

 

I've been reading about free mods for my 95 and I know my truck had some work done to it before I bought it but not sure what. So after reading some tips I decided to do some digging and this is what I found. I already knew I had a K&N filt. and piller pod with pyro boost and trans temp. Pyro reads 1200+ at full load and boost is at 35 full load. The truck shifts pretty early, about 2600.at wot. So I pulled the fuel plate out it's a #6 mounted at center, the star wheel seems to be in the middle position, and I cannot find the gov. spring location to check for mods. It seems everyone knows where this is but me. Also how for should I spin the star wheel and what way. Any help please, thanks.

 

govenor springs are located in the injection pump. you can easily tell if they were changed or not by reving the engine. on a stock truck it will rev to about 2500 rpms. if you can pass that to about 3k or 3200 or so, then they were changed or the gwsk was performed. (govenor washer spring kit)the starwheel controls when boost is allowed i believe.. boost is allower sooner if it is spun away from the engine and later if turned towrd the engine. Basically it allows more or less smoke.....

govenor springs:http://cumminsdatabase.com/read.php?id=182

 

Thank you. That helps a lot. Now I know.

 

glad to help a bit

 

WOW Your seeing 1200*+ at full load I hope it doesnt stay ther long or youll be replacing a motor pretty soon. sounds like you need a turbo already.

Jake

 

haha i read over that... lol... thought he was talking about the gauges max position... lol, it sounds like he might have a set of injectors

 

I can get 1300 if I'm on real hard with my trailer. I know the truck had work done before me, but not sure what. It has always smoked alot af black when I'm on it. and absolutely out performs my dads 94 3500. I've had it for 3 years and and drive alot, 90% pulling time. it's never changed a bit. 75- 80 mph is 700 -800* . I figured out the gov. spring and put the washers in and it helped with rpms. I slid the #6 plate forward and the housing. didn't notice anymore power then I backed off the star wheel all the way. same amount of smoke more bottom end power though.

 

It doesn't look like the injectors have been changed. but it is also much more powerfull than my father inlaws 98.5 24 v. ????

 

And most likely always will be with the right mods. These mechanical injection 12v engines are fairly simple to work on and maintain, +++ NO VP44 problems

Not to change the subject here But..... have you fixed the Killer Dowel Pin yet????

 

Not yet. I'm new to the site and didn't even no there was such a thing till I looked kdp killed in the search. As soon as I can I will. I will 1 order tomorrow. I'm learning all sorts of stuff now.

 

Fix your KDP and get your timing set at about 16* It really cools the EGTs down a bit.

 

what egts do you get Jake??

Heck i can peg the pyro at 1600 before i go 60 mph with only a fuel plate,
this elevation sux!

 

I can almost do that at 3000'.

 

most i hit was 1300*... that was getting on the highway. with no load.....