7 3 Idi Fuel Pump Pressure

How to turn up the fuel on a 7 3 idi this also works on a 6 9 idi.

7 3 idi fuel pump pressure. Exhaust gas temperatures egt can rise dramatically after the fuel pressure has been increased. Electrical fuel system fuel tanks injector pump injectors. 90 120 psi for 7 3. I get 4 psi at idle 3 at wot with a stock lift pump and stock ip.

Transfer pump pressure is taken at 3300 rpm and should be 90 110 psi for 6 9. If i m going to be completely honest i ve always been skeptical of the assertion that lift pump fuel pressure impacts the timing of the injector pump. To properly do dynamic timing you n. Chad frank 8 275 views.

If the engine won t start all other checks are normal and there is no air inside the injection pump chances are the transfer pump is not producing enough pressure to start the engine. Does lift pump fuel pressure affect timing on a 6 9 7 3 idi. After changing the pump i just static timed it and then advanced it by a dimes width. 7 3 idi injection pump replacement.

Don not attempt to turn up the fuel on a 7 3 injector pump while the engine is hot or around open flame. I finally got a mechanical pressure gauge on my 93 7 3 idi. Electric fuel pump duration. Turns out going from 9 0psi makes about a 3 5 4 deg btdc retardation of timing.

Diesel fuel will ignite upon coming in contact with flame or hot surfaces. Then i turned off my e pump fuel pressure forcing the ip to suck fuel at around 0psi and re checked the timing. I recommend getting a pyrometer before doing this so you don t burn up the motor.