BigBlockTony
Registered User
Long time reader and really my first time posting. I am a soon to be mechanical engineer that has a fairly good background in equipment repair, theory, and design.
Recently picked up a non-running 1986 F350 with a 6.9 for its front axle. Most likely the truck only has 75k on it and not 175k or 275k etc. from the looks of it's interior and other parts of it. This was one of those that ran when parked deals.
So I made the choice of trying to start the engine. Pulled all the glow plugs and shot oil down the cylinders before I tried to start it and primed a new fuel filter and made sure the lift pump was moving fuel before I put the glow plugs back in.
Currently getting fuel to the inlet of the injection pump but no fuel to cracked injector lines all 8 or if I pull a line completely off.
I will be the first to say the fss clicks when it is given power. Pulled the top cover of the injection pump off and the the metering valve assembly turns free like it should.
The fuel in the injection pump looks like it was algaed.
I did fill the top of the injection pump with Seafoam after I cleaned as much old fuel out as possible. Still looks pretty dark.
The return lines do leak pretty badly and i figure they are original to the truck(caps seem to have gray paint on them) Ordering a new set and will put them on this next weekend.
Am I doing something incorrect or is it because my return lines leak so badly or the injection pump is bad from sitting?
Ps. I also noticed that the injection pump had a fine stream of fuel squirt out of the inlet while i had the inlet line off and was cranking the engine. From the design of the pump it seems like this should be normal because of the one slide valve on the the transfer pump in the inlet not having in fuel pressure from the lift pump.
Sent from my SM-G930VL using Tapatalk
Recently picked up a non-running 1986 F350 with a 6.9 for its front axle. Most likely the truck only has 75k on it and not 175k or 275k etc. from the looks of it's interior and other parts of it. This was one of those that ran when parked deals.
So I made the choice of trying to start the engine. Pulled all the glow plugs and shot oil down the cylinders before I tried to start it and primed a new fuel filter and made sure the lift pump was moving fuel before I put the glow plugs back in.
Currently getting fuel to the inlet of the injection pump but no fuel to cracked injector lines all 8 or if I pull a line completely off.
I will be the first to say the fss clicks when it is given power. Pulled the top cover of the injection pump off and the the metering valve assembly turns free like it should.
The fuel in the injection pump looks like it was algaed.
I did fill the top of the injection pump with Seafoam after I cleaned as much old fuel out as possible. Still looks pretty dark.
The return lines do leak pretty badly and i figure they are original to the truck(caps seem to have gray paint on them) Ordering a new set and will put them on this next weekend.
Am I doing something incorrect or is it because my return lines leak so badly or the injection pump is bad from sitting?
Ps. I also noticed that the injection pump had a fine stream of fuel squirt out of the inlet while i had the inlet line off and was cranking the engine. From the design of the pump it seems like this should be normal because of the one slide valve on the the transfer pump in the inlet not having in fuel pressure from the lift pump.
Sent from my SM-G930VL using Tapatalk