Tom in TN
Well-known Member
- Location
- Southern Middle Tennessee
Thanks to all who responded to my earlier message. My old-style (1962 - 1964) Ford 4 cylinder diesel was running very well. Last Sunday afternoon I was bush hogging with it and I had to keep opening the throttle a little more to keep the engine speed at 1800 RPM. Finally, I had the throttle all of the way open and the engine would only run at 1500 RPM.
Today, I:
1. Removed the fuel line that goes from the fuel tank to the fuel filter (gravity feed - no fuel pump
2. Had a steady stream of fuel. I collected two quarts of fuel in two glass canning jars. The fuel was clean with no trace of water.
3. Although I had replaced the fuel filter about 5 hours earlier on the proof meter, I replaced it again just to be sure.
4. The throttle linkage does not appear to have changed from earlier use. It looks like the arm on the injector pump is fully operating.
5. I removed the bottom of the oil bath air filter and ran the engine without any filter to see if it made a difference. It didn't.
6. I have a fairly large amount of bluish-white smoke coming out of the exhaust pipe, but no black smoke.
7. I had added some injector cleaner to the fuel tank about a month ago when I bought the tractor. The fuel tank is still a little over half full.
The engine starts and idles very well, but it won't rev above 1500 RPM. I don't know JACK about a diesel engine.
Is it possible that one or more of the injectors is clogged or not opening properly? Would that result in lost power? Do you think it is reasonable for me to pull the injectors and take them to someone who can clean and test them?
Thanks again for the help you've already provided. Any further suggestions would be greatly appreciated.
Tom in TN
Today, I:
1. Removed the fuel line that goes from the fuel tank to the fuel filter (gravity feed - no fuel pump
2. Had a steady stream of fuel. I collected two quarts of fuel in two glass canning jars. The fuel was clean with no trace of water.
3. Although I had replaced the fuel filter about 5 hours earlier on the proof meter, I replaced it again just to be sure.
4. The throttle linkage does not appear to have changed from earlier use. It looks like the arm on the injector pump is fully operating.
5. I removed the bottom of the oil bath air filter and ran the engine without any filter to see if it made a difference. It didn't.
6. I have a fairly large amount of bluish-white smoke coming out of the exhaust pipe, but no black smoke.
7. I had added some injector cleaner to the fuel tank about a month ago when I bought the tractor. The fuel tank is still a little over half full.
The engine starts and idles very well, but it won't rev above 1500 RPM. I don't know JACK about a diesel engine.
Is it possible that one or more of the injectors is clogged or not opening properly? Would that result in lost power? Do you think it is reasonable for me to pull the injectors and take them to someone who can clean and test them?
Thanks again for the help you've already provided. Any further suggestions would be greatly appreciated.
Tom in TN