stock settings

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Hey guys, I've been reading a lot about tuning the ve pumps and it made me want to adjust mine to get the most out of it, since I'm on a budget. Problem is when I bought the truck the previous owner had made some pump adjustments (3200 spring, and timing, and all the screws have been turned) I would like to know what the factory settings are so I could set it to stock then adjust it from there. I did see the "collar" was still on the power screw, if that means anything.
Thanks,
Joel

[RCCUMMINS89]

There are no set in stone stock settings. Each and every pump is set up different.

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Well with that information I guess my question now is can you over tweak it? such as turning the starwheel too much, power screw too much to the point of pump/engine harm? I know if you turn the power screw more than three turns there is a chance of runaway. but how many turns can you get on the power screw with the collar still on the power screw? Or does that have to deal also with each pump having different stock settings?

[CumminsPower59]

From the few pumps I've dealt with, about a turn or two is all you can get out of a collar'd fuel screw...take it off, it depends. Depending on the pump, it can go too far. There is an o-ring on the fuel screw, continuing to turn it in past when it gets snug can tear that o-ring. Some pumps will hit runaway before it hits that point, others won't. Some people have used longer screws to reach that point, but too far with them and the tip of the fulcrum lever can break off...similar to the pump recall that these pumps had years ago. Smoke screw, star wheel adjustment can't be "over" done, no damaging the effects from them.

[SMOKE TRAIL]

From the few pumps I've dealt with, about a turn or two is all you can get out of a collar'd fuel screw...take it off, it depends. Depending on the pump, it can go too far. There is an o-ring on the fuel screw, continuing to turn it in past when it gets snug can tear that o-ring. Some pumps will hit runaway before it hits that point, others won't. Some people have used longer screws to reach that point, but too far with them and the tip of the fulcrum lever can break off...similar to the pump recall that these pumps had years ago. Smoke screw, star wheel adjustment can't be "over" done, no damaging the effects from them.

So pretty much once I take the collar off I could get roughly a turn out of it before runaway. And since this truck is my daily I'd like to stay away from runaway. haha And correct me if I'm wrong or miss something, but the starwheel basically determines spring tension and how much boost pressure it will take to push down the fuel pin. Correct?

[CumminsPower59]

Ive turned my "new" pump wayyy in past where the collar was, probably three-four turns before it bottomed out at the o-ring. It really depends on your pump, 114 pumps (NON-IC) tend to hit run away conditions, while 184's and 205"s don't usually.

You are correct on how the star wheel works

[Tacoclaw]

If you can't get runaway before it bottoms you can index your throttle linkage a spline or two more on the throttle shaft of the pump and it will change the runaway point.

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How do you tell when you have hit runaway? Doe the truck start running away while you turn the screw? I've also heard the truck is supposed to be running while you adjust the power screw, is that true?

And for the starwheel, is it better for higher spring tension or lower?

Joel

[DMan1198]

With it running and the tube to the intake horn removed is probably best. Now once you're at the point where it won't run away at idle rev it up and if it hangs then turn it out a bit more (you'll have to reconnect the intake tube for that)

For the star wheel. On a stock turbo and injectors having the star wheel 3-4 turns from bottom helps spool up. With larger injectors most of us put it right it the top of the threads

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Thanks for the info guys.that's really helped cleared up the grey areas! Maybe once I get motivated today and finish the intercooler swap I will have a chance to play with the pump! I'll report back with my results!

Joel