135 massey ferguson fuel injection

dawsonn · Sep 30, 2009

I bought a 135 that had a rod knock and I rebuilt the motor complete but I did not rebuild the injection pump it was working. When I put it back together I bled out the air fromp pump and cracked the lines at the injectors and spun over and nothing comes out. I made sure that the kill leaver was not closed. I bled the vents on the injection pump. Anyone have any ideal why. Any help would be great thanks.

Tx Jim · Oct 1, 2009

Did you remove crankshaft or camshaft during rebuild?

dawsonn · Oct 1, 2009

yes installed new cam and had the crank ground .010

Billy Shafer · Oct 1, 2009

If you did remove the crank and cam and did not retime them. It is not going to start. But you should have fuel at the injector lines. If the pump is turning. You need to go back and recheck the fuel system. Sometimes the CAV pump can be very hard to get the air out of. You might try opening both bleed screws on the pump and spinning the engine over. I just did mine and had some trouble getting all the air out.

RodinNS · Oct 1, 2009

If you've bled the filter, then bled the small bleeder on the top of the pump body and got good clear fuel at both... and you still can't get fuel at the injectors at full throttle, then the metering valve in the pump is likely stuck.
You can likely remove the pump cover and pull the valve and free it, then clean the muck out of the pump. Some guys prefer to do this on the tractor. Personally I prefer to remove the pump from the tractor for all the time it takes.
Whatever you do, keep it CLEAN. You might also just send the pump out to a pump shop and have ti gone through...

Rod

135 massey ferguson fuel injection

dawsonn

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Tx Jim

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dawsonn

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Billy Shafer

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RodinNS

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