olBlue
Registered User
Hi everyone so here the back story, 94 idiT fully rebuild engine 3 years ago.New everything- short block ,heads, R&D inj pump, injectors. Facet lift pump with 7psi regulator in engine bay. I deleted fuel filter setup and relocated to frame with. Engine always started up and ran great.this last summer I redid the frame and I replaced the rear most tank and lines to the frame. Since then over the summer its been getting harder and harder to start. Now I'm scared to drive anywhere and leave it sit for 20-30min without having to crank it forever at half throttle for it to start. and once it does a mile or so it surges like i hit the nitrous button and then returns to normal the rest of the trip.
So now this winter I'm looking into it. Keep in mind truck has probably 1000miles on it since rebuild. I see the drivers rear injector return cap is wet around the base. So once again I buy a whole new return kit from Pensacola Diesel. Replaced everything with brown Viton o rings and lots of rubber grease. Also installed check valve in 2 ft line from Lift pump to Injector pump.Cranked a ton of times and started engine and let idle to operating temp. No problems.
Let truck sit overnight.. same thing. wts light comes on, glow plug controller clicks once, wts light goes out and i crank and crank until it fires up then dies, crank some more, half throttle, fires up and runs perfectly. shut it off and 4 hrs later starts right up no problems. What could I possibly be missing??
Tonight I ran it to operating temp, shut off and clamped off the return line at the back of the engine to see if i can eliminate the line to the tank. I did notice my fuel pressure gauge on the lift pump slowly drops but stops if i pinch the lift pump to injector pump line.Is this a issue? Im at a loss right now. I got some clear hose and will try installing it on the lift pump feed and return line next I guess. Any help is greatly appreciated. I basically want to run this truck into a lake.
So now this winter I'm looking into it. Keep in mind truck has probably 1000miles on it since rebuild. I see the drivers rear injector return cap is wet around the base. So once again I buy a whole new return kit from Pensacola Diesel. Replaced everything with brown Viton o rings and lots of rubber grease. Also installed check valve in 2 ft line from Lift pump to Injector pump.Cranked a ton of times and started engine and let idle to operating temp. No problems.
Let truck sit overnight.. same thing. wts light comes on, glow plug controller clicks once, wts light goes out and i crank and crank until it fires up then dies, crank some more, half throttle, fires up and runs perfectly. shut it off and 4 hrs later starts right up no problems. What could I possibly be missing??
Tonight I ran it to operating temp, shut off and clamped off the return line at the back of the engine to see if i can eliminate the line to the tank. I did notice my fuel pressure gauge on the lift pump slowly drops but stops if i pinch the lift pump to injector pump line.Is this a issue? Im at a loss right now. I got some clear hose and will try installing it on the lift pump feed and return line next I guess. Any help is greatly appreciated. I basically want to run this truck into a lake.