3020 fuel injection pump

jeremy in NE · Jul 10, 2011

Finally got to work on it again today, but I can not get any fuel
through the pump. I have fuel to it and when I take the cover off to
expose the linkage it is full of fuel. All the linkage in the pump
seems to be operating as it should and the pump is turning. Is
there a bleed screw somewhere I am missing. I cannot get fuel to
come out of the fuel injector lines. It is an early model 3020 with a
roosta master pump.

george md · Jul 10, 2011

jeremy,

No bleed plug ,you can loosen the injector
lines, might help. Is it a C pump or a D pump?
C is the round one & D has the advance
unit on one side and the governor linkage etc
on the other.
Could be the return connector stopped tight,
that will prevent any pumping action.
I do some pump work , send me an email with
a phone # and I'll try to get you thru it.

george

VicS · Jul 10, 2011

Went to start a 300 JD diesel, Its a old state tractor with a loader. Anyway a friend was buying it. It would crank but no smoke. Took lines off going from tank to pump. The diesel in them had turned to grease. New diesel would soften it up. Had to take valve off of bottom of tank. Blew air in top of tank and blew about a pint of this gunk out of tank. bled everything still no smoke. Took the fitting out of the top of the pump and cleaned the check valve. Bled it again and it smoked and started. Died on the way home, this time knocked the ball out of the check valve. also put some diesel fuel conditioner in it. It has probably run 40 hrs since no problems.

Tony in Mass. · Jul 10, 2011

At the risk of catching something awful, check my posts on the massey and harry ferguson forums. I have a CAV pump in pieces, just can't get fuel up the final lines, isn't leaving the pump, but when I open the bleeders- 3 but only 2 need to be cracked, hay you take a shower in the stuff. There is just something in these things that gum up, and ruin a week on ya.

David from Kansas · Jul 10, 2011

Similar situation this spring on my brother's late model 3020. The tractor had been sitting for about 3 years but had a pump problem when it was still running. Couldn't get fuel thru the pump. My son, a JD mechanic took everything off the pump he could while it was still mounted and had no success so he had to remove it and do an overhaul on it. Starts and runs great now.

Tx Jim · Jul 11, 2011

Metering valve in the pump could be stuck.

3020 fuel injection pump

jeremy in NE

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george md

Well-known Member

VicS

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Tony in Mass.

Well-known Member

David from Kansas

Well-known Member

Tx Jim

Well-known Member

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