pump question.

monster12valve · #1 12-26-2009, 09:12 PM

is the injection pump lubed by engine oil or diesel fuel? i pulled the fuel plate out today and and it had what seems to be engine oil all over it.....is this normal?

**cumminsCrazy** · #2 12-26-2009, 10:14 PM

P-pump is engine oil lubed i think thats why they last so long in my opinion

yellow12v · #3 12-27-2009, 12:36 AM

runs off the camshaft gear bro, just like everything else. engine oil.

12vcummins96 · #4 12-27-2009, 07:50 AM

the plungers in it are lubed by diesel but the govenor ass and the other moving parts are engine oil

**94 12valve** · #5 12-27-2009, 09:18 AM

Originally Posted by hotcummins

the plungers in it are lubed by diesel but the govenor ass and the other moving parts are engine oil

^^^ yep its lubed by both

monster12valve · #6 12-27-2009, 09:38 AM

thank you guys

12 valve newby · #7 02-14-2010, 02:52 PM

ok i got a few questions also i just bought a 97 12 valve and trying to do a few cheap mods to it at first i messed with the star wheel and wasnt happy so i took out the fuel plate out with me taking the fuel plate out and not turning the star wheel back. does that mess everything up as in make it run rough?

**94 12valve** · #8 02-14-2010, 03:16 PM

it won't mess anything up ... it will just smoke like a train on the low end and run slightly better on the top

12 valve newby · #9 02-14-2010, 06:26 PM

but then how comes about 2000 rpms it kinda feels like it falls on its face...

dshane62 · #10 02-14-2010, 06:38 PM

ya need the 3gsk mod to the gov. but as far as falling on face at 2000 rpm i would check
the fuel filters and fuel pressure could be lift pump

**94 12valve** · #11 02-14-2010, 06:59 PM

Originally Posted by 12 valve newby

but then how comes about 2000 rpms it kinda feels like it falls on its face...

Originally Posted by dshane62

ya need the 3gsk mod to the gov. but as far as falling on face at 2000 rpm i would check
the fuel filters and fuel pressure could be lift pump

the stock gov springs only fuel to arround 2200 rpms before it starts to defuel, thats what your feeling. You can upgrade your gov springs to a 3k kit that fuels to 2700 - 2800 rpms or a 4k kit that fuels to 3500 - 3600 rpm.

**Lil Red Express** · #12 02-14-2010, 07:12 PM

Originally Posted by 94 12valve

the stock gov springs only fuel to arround 2200 rpms before it starts to defuel, thats what your feeling. You can upgrade your gov springs to a 3k kit that fuels to 2700 - 2800 rpms or a 4k kit that fuels to 3500 - 3600 rpm.

My old 97 in bone stock form would pull hard to 3000rpm's. I would check the fuel press before spending $ on a GSK.

Hightech_Redneck · #13 02-14-2010, 07:48 PM

IMO the 4k will fuel to 4k too..... just gotta make sure your pressure is up and all.... i would check it out......

**94 12valve** · #14 02-15-2010, 05:47 AM

Originally Posted by Lil Red Express

My old 97 in bone stock form would pull hard to 3000rpm's. I would check the fuel press before spending $ on a GSK.

your sure you had stock springs? sounds like someone swaped springs

**Pyro690** · #15 02-15-2010, 05:56 AM

Originally Posted by 94 12valve

your sure you had stock springs? sounds like someone swaped springs

x2 My bone stock 97 215 p7100 fuels till about 2200.

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