93 fuel at injectors but not firing

SCHMITTY

SCHMITTY

Not enough time
My buddy brought me a 93' 5 speed he recently acquired. It supposedly ran great 3 years ago. It won't hold prime if you crank it for 30 seconds. I used compressed air in the filler to the fuel tank to force fuel up to the fuel filter, and to the line feeding the front of the injection pump. I replaced the fuel filter before I did anything else and topped it off with fuel.

So after using air a couple times I grabbed a clean 1 gallon jug , cut the fuel line near the tank, hooked it up to a low pressure electric pump and used that to supply fuel through the lift pump. I checked the oil and didn't notice any diesel in it. All the injector lines squirt fuel out but it won't even try to fire. I hooked my 95' up to it with jumper cables to make sure it was turning over fast enough.

I checked the shut off solenoid and the previous owner must have pulled the spring and rubber tip out already- I did not see any fuel in the hole even when I turned it over but that was before I got fuel to the injectors anyways.

I did notice the manual shut off lever was leaking where the shaft goes into the pump. My buddy bought this truck for parts so he can swap the motor and trans into a 70s dodge crew cab. I normally work on his p pump trucks and the ve pump has me scratching my head.

The only thing I can think to check next is if the timing is off. What do you guys think ?
 
Did you try pushing the accelerator petal or moving the lever on the pump while cranking? The idle could be adjusted way off and the pump is not going to allow the engine to idle.

I had this happen after an injector swap and once when I had indexed the throttle linkage incorrectly.
 
stuck pintles in all the injectors. take an injector apart and see if its full of cosmoline ish varnish. I bet you are returning all your fuel to the tank.

I just had a brand new (old set) of injectors apart on the bench that had to be disassembled and soaked in ZEP agent orange for a few hours and even then the pintles were a PITA to get free.
 
Red Sleeper said:
Did you try pushing the accelerator petal or moving the lever on the pump while cranking? The idle could be adjusted way off and the pump is not going to allow the engine to idle.

I had this happen after an injector swap and once when I had indexed the throttle linkage incorrectly.
Click to expand...

I have a trigger setup with alligator clips so I can turn it over with without sitting in the cab. I held the throttle lever at different positions.
 
turbo2387 said:
stuck pintles in all the injectors. take an injector apart and see if its full of cosmoline ish varnish. I bet you are returning all your fuel to the tank.

I just had a brand new (old set) of injectors apart on the bench that had to be disassembled and soaked in ZEP agent orange for a few hours and even then the pintles were a PITA to get free.
Click to expand...

I do have some extra ve injector bodies in a box. Hopefully it doesn't come to that
 
Hooked up my 95 again, primed it with the electric pump, a little bitty wiff of ether and it fired right up. Putting a new lift pump on tomorrow.
 
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