Fuel regulator shimming???

[Tuckin49s]

I want to shim my fuel regulator in my 99 7.3l who makes a kit? How do I do it? Whats the pros and cons?

[REDPOWERSMOKER]

Diesel Innovations - Products

[bryceba]

I would like to do this on my 01 also. I have read about dropping a bb in the plunger but I have no idea how this works though. Does this work on the newer 7.3s? Please help us!!!!!

[alabamafrog]

It is only a spring that holds a plunger seated, the factory spring will hold the pressure to around 58 psi. Dropping a BB inside the plunger puts a little more pressure on the spring and usually raises pressure to around 80 psi. It is best to plumb in a fuel pressure gauge and check the pressure before and after the BB. I like the BB idea but my truck has the spring out of a California FPR in it, same thing only different but cost $25 at Ford.

[bryceba]

Where is the FPR? What does this job entail? This is the same thing as shimming?

[pojo4223]

THis is the same thing as shimming the FPR, if you search the site youll find a great number of helpful pictures and instructions on how to go about shimming the FPR. its a quick easy job to do just pay attention and dont over tighten the fuel line when your putting it back on, the threads can crack very easily. FPR is located on the right hand side of the fuel bowl. Good luck this is a quick worthwhile mod! i used a bb, perfect size

[Tuckin49s]

Thanx..........

[strokin_early_99]

Look here: FPR Shims

[offroadwizard]

now is this going to be bad to do and what can all happen?

[Quickhorse]

Diesel Innovations does not offer the shim kit anymore. They have a stage 1 kit for $229 that comes with a regulator, gauge, and hose kit now. The shim kit was cheaper for $59 too bad they don't have that anymore!