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Trouble starting D4D

Trouble starting D4D

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Mschwartz
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Hello looking for some advice getting the 20J D4D to start   Has not been running for a couple of years but was running well when parked. Acts like it is not getting fuel.  So far I have filled the fuel tank changed the fuel filters. Get diesel at all four injector line when I crack them although they don’t seem to squirt real hard I did get some air out before clean diesel.   Removed air cleaner to check for obstruction and seems good. Good suction when I put my hand over the pipe and crank the engine over so I think there are no stuck valves.  24 volts good batteries and charged, glow plugs are working.  Any body run into a similar issue and have a good suggestion?  Tractor does have a turbo added.  Can something be stuck in the fuel pump?  Think the primary pump is working as it will peg the fuel pressure gauge while cranking the engine.  Thanks, Mike
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Sat, Apr 23, 2022 11:36 AM
trainzkid88
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while cranking feel the injector lines they should be pulsing. stuck injectors could be the issue. some engines are a absolute bitch to bleed bleed it while cranking. be careful keep fingers away from fuel lines while bleeding this way as injection hazard does exist and the pump doesnt need to produce full pressure to pierce the skin. it may take a few goes to get all the air.

also a stuck fuel rack while prevent starting check that is moving freely and has full travel.

is there white smoke at the exhaust if no smoke then no compression or low or no fuel delivery

"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"

instead of perfection some times we just have to accept practicality

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Sat, Apr 23, 2022 7:08 PM
74A6C
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Reply to trainzkid88:
while cranking feel the injector lines they should be pulsing. stuck injectors could be the issue. some engines are a absolute bitch to bleed bleed it while cranking. be careful keep fingers away from fuel lines while bleeding this way as injection hazard does exist and the pump doesnt need to produce full pressure to pierce the skin. it may take a few goes to get all the air.

also a stuck fuel rack while prevent starting check that is moving freely and has full travel.

is there white smoke at the exhaust if no smoke then no compression or low or no fuel delivery
Trainzkid is right, some engines are a royal bitch to overcome a lost prime. My old F Super Duty has been sitting all winter and just this way. Get it whirling and give it small snort of ether if you're confident of everything else's integrity, used proper it's a help not a hindrance.
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Tue, Apr 26, 2022 11:32 AM
Mschwartz
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Reply to 74A6C:
Trainzkid is right, some engines are a royal bitch to overcome a lost prime. My old F Super Duty has been sitting all winter and just this way. Get it whirling and give it small snort of ether if you're confident of everything else's integrity, used proper it's a help not a hindrance.
I am thinking the rack must be stuck. Removed cover from end of governor and the rod that comes out with the nut on the end of it will move back and forth with no spring tension. Looks to me like the spring should be holding it back to the low fuel position but not sure. I think I will go back with a plan to remove the governor from the fuel pump to access the fuel rack unless someone knows a way to get to it without removing governor. I believe it is not getting any fuel at all to the injectors. Crack the lines and fuel leaks out but does not squirt out with any pressure like normal. Thanks, Mike
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Tue, Apr 26, 2022 1:04 PM
Mschwartz
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I am thinking the rack must be stuck. Removed cover from end of governor and the rod that comes out with the nut on the end of it will move back and forth with no spring tension. Looks to me like the spring should be holding it back to the low fuel position but not sure. I think I will go back with a plan to remove the governor from the fuel pump to access the fuel rack unless someone knows a way to get to it without removing governor. I believe it is not getting any fuel at all to the injectors. Crack the lines and fuel leaks out but does not squirt out with any pressure like normal. Thanks, Mike
Forgot to mention that I have tried helping it with ether and it does not fire.
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Tue, Apr 26, 2022 1:05 PM
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