7 3 Idi Injection Pump Diagram

7 3 idi injection pump wiring diagram.

7 3 idi injection pump diagram. The fuel injection system on the classic 6 9 and 7 3 liter international navistar engine used in diesel fords from the 70s to the early nineties is relatively simple but some confusion still remains about how it functions. Note that silicon gasket material is used to seal this part and it will be necessary to clean off all the old gasket material before reassembling. This can be checked by opening one or more injector lines. Loosen the two bolts and remove the cover after placing rags and a catch can under the engine to collect the half pint of fuel contained in the adjustment port.

How to manipulate the metering valve on 6 9 7 3 idi injector pump. Transfer pump pressure is taken at 3300 rpm and should be 90 110 psi for 6 9. Remove the bolts and remove the plate. It is shaped like home plate on a baseball field.

90 120 psi for 7 3. 7 3 idi injection pump replacement. 7 3 idi diesel problems. If you have been cranking and cranking your idi engine trying to purge the air from the injector lines and nothing seems to get any fuel to the injectors then you might have a stuck metering valve in the injector pump.

The major components of the system are the lift pump filter head and filter fuel injection pump fuel injectors return system selector valve and the fuel tanks. 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. On all 7 3 and later 6 9 engines the injection pump gear cover is a metal plate located on the front of the injection pump gear housing and in all cases is held on by two bolts. 7 3 idi injection pump wiring diagram furthermore 7 3 ford repair manuals engine diagram diesel fuel regulator.

Engine fuel system injector pump injectors. On the passenger side of the injection pump there is a little cover that protects the adjustment screw. Make sure you check the fuel shutoff solenoid before you replace the injection pump. To properly do dynamic timing you n.

Locate the injection pump at the front of the engine. After changing the pump i just static timed it and then advanced it by a dimes width.