shimming fuel regulator

[4x4freak]

Does anyone have a link to pictures of shimming fuel regulator?

[npccpartsman]

I'm not sure that there are any on this particular forum. I know the procedure is on TDG if you ever go there. Not much to it. Go to a bobcat dealer and ask for part# 6592105 which should be a small steel ball that is PERFECT to shim with. Cost is about 15 cents. All you have to do is remove the fuel return line that goes to the small aluminum block on the "front" of the secondary fuel filter housing, remove the 3 or 4 torx head screws making sure you don't drop any of the small parts, insert the ball between the spring and the plunger and reinstall. I'll see if I can find you a link to the pic's and post them IF I don't get in trouble for the link.

[mdub707]

What's the purpose of this? Does this work on any 6.0?

[npccpartsman]

Its' to raise the stock fuel pressure which in many cases will fall way way off when running extremely hot tunes. FWIW it really doesn't help much. What most people fail to realize when raising the pressure on a pump is that it's often at the cost of fuel volume.

[southern7.3]

Ive been told that it can put a lot of stress in areas with gaskets and can blow em. Anyone else heard that

[npccpartsman]

Originally Posted by southern7.3

Ive been told that it can put a lot of stress in areas with gaskets and can blow em. Anyone else heard that

LMAO--whoever told you that is full of it. As a matter of fact, I don't know any area in the fuel system that has an actual gasket. O-rings and metal gaskets are all that I can recall and the stock fuel pump won't put out enough pressure to damage them unless they're already compromised.

[AFBLUE]

The 6.0 has the same problem as the 7.3 having a dead head fuel system. They need a regulated return to operate correctly with tunes. Its only 15 cents for that BB but you are wasting your time and stressing your pump and promoting failure. It doesnt help. In most cases on the 7.3 it causes hard starting, I would think the outcome will be similar on the 6.0

[npccpartsman]

I never had any problem with hard starting because of raising the fuel pressure. The FASS has much higher fuel pressure than the stock pump and mine starts like a gasser. I do, however, agree that it's a waste of time.

[southern7.3]

Thats what it was orings not gaskets but still

[npccpartsman]

No O-ring problems either. I know people who are running 75psi with no problems and that's about 20psi more than stock.