Posted by caseitman on May 15, 2023 at 18:36:11 from (70.58.2.73):
Hello everyone,
I have a 1964 John Deere 4020 that I picked up and was told it needed a new fuel injection pump. I was able to get the tractor to start on the old injection pump and it ran for about a minute and then died and would not restart. I changed the fuel filter and installed a new fuel injection pump, bled the injection lines and then it started and ran for about 2-3 minutes before it died again and will not restart. I pulled the upper injection line off and blew air through all of it, and nothing came out. I then blew air through the return line into the fuel tank and nothing was clogged in there either. I then tried to get it to start on starting fluid and it would not start(after hooking everything back up and bleeding the lines). There is fuel getting to the injectors when I loosen the banjo bolts.
Any ideas or guidance would be greatly appreciated. Thanks in advance!
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