How To Adjust Diesel Injector Pump. We can reduce or increase this tension by adjusting the size of the shim that is underneath the spring. Air bubbles indicate an air leak downstream of the lift pump and a weak stream indicates a worn lift pump.
You wont hurt anything unless you over-do it. Dont forget to retighten the locknut. I was reading a diesel magazine and they adjusted the injection pump and got 70 hp on a 1992 1st gen i was wondering if their was a way to adjust my injector pump to get more power mine is a 1997 12 valve Click to expand.
One of the more straightforward ways to convert the timing is to adjust the fuel injection pump.
Adjusting the injector nozzle valve opening pressure is an easy operation by installing the shims having the appropriate thickness to load the spring consequently. Loosen both bolts a turn or 2. You wont hurt anything unless you over-do it. All you have to do is rotate the pump with a screwdriver and socket wrench standard tools you can find in your garage or toolbox.
