First let me say hello to all and a pre thank you for any advice. I have a mid 70's Ford 3400 Diesel with CAV fuel system. When I purchased the tractor it ran/drove/operated great at the lot and no leaks. After being delivered everything changed. It was leaking fuel really bad from day 1 so I started fixing the fuel system. This tractor ran before I started fixing it up other than it was leaking fuel and a little stubborn to start. A quick shot of ether was used. In my quest to stop all the leaks I have done the following,
1. Replaced the fuel shutoff and screen at the tank.
2. New fuel line from fuel shutoff to Filter housing.
3. New filter housing and filter.
4. New fuel line from filter exit to intake on the fuel injector pump.
5. Had the fuel injector pump rebuilt.
6. New fuel lines between injectors and return to tank.
7. A brand new industrial tractor battery.
8. 10 gallons fresh diesel
9. Bled the system at the filter, then the pump, then the injectors.
The folks at the pump repair were surprised it ran due to damage to the cam lobes. At this point the only things not replaced are
1. Injectors ( I am wondering if debris from the damaged pump lobes has gone downstream and ruined these)
2. High pressure lines from pump to injectors
3. A second fuel line from filter exit to injector pump.
I have ordered new injectors and will replace as soon they are here. However, when trying to start the tractor she turns well and puffs a little white smoke while turning. I am under the understanding that this is fuel getting to the cylinders. I have good pressure to the injectors and no leaks so I assume the high pressure lines are good. Could the injectors be bad and still allowing fuel into the cylinders? Would this be enough to not start? Any suggestions for more trouble shooting? I have soo much more to do in regards to power steering and replace loader hoses that I just need to make some progress on restarting it. Not to mention I could really use this machine for taking care of the animals/pastures. Thanks again for taking the time to ponder this issue.
1. Replaced the fuel shutoff and screen at the tank.
2. New fuel line from fuel shutoff to Filter housing.
3. New filter housing and filter.
4. New fuel line from filter exit to intake on the fuel injector pump.
5. Had the fuel injector pump rebuilt.
6. New fuel lines between injectors and return to tank.
7. A brand new industrial tractor battery.
8. 10 gallons fresh diesel
9. Bled the system at the filter, then the pump, then the injectors.
The folks at the pump repair were surprised it ran due to damage to the cam lobes. At this point the only things not replaced are
1. Injectors ( I am wondering if debris from the damaged pump lobes has gone downstream and ruined these)
2. High pressure lines from pump to injectors
3. A second fuel line from filter exit to injector pump.
I have ordered new injectors and will replace as soon they are here. However, when trying to start the tractor she turns well and puffs a little white smoke while turning. I am under the understanding that this is fuel getting to the cylinders. I have good pressure to the injectors and no leaks so I assume the high pressure lines are good. Could the injectors be bad and still allowing fuel into the cylinders? Would this be enough to not start? Any suggestions for more trouble shooting? I have soo much more to do in regards to power steering and replace loader hoses that I just need to make some progress on restarting it. Not to mention I could really use this machine for taking care of the animals/pastures. Thanks again for taking the time to ponder this issue.