how do you remove an injector pump from a massey ferguson 231

[jim4466]

i have a massey ferguson 231 that is pumping diesel into the crankcase, i already changed the lift pump so it has to be the injector pump. i was told that removing the pump is tricky due to timing issues. can anyone tell me how this is done? can't afford to pay a mechanic to remove it and rebuild it. trying to save money.

[Richard]

I don't know your answer. We have an IH 444 and I had to remove the injector pump.

I first however, had to remove the drive gear to the pump. When the pump was finally removed/replaced, I still had FITS of problems.

Seems, unknown to me, there was a drive pin that fit in the drive gear and into a fitting on the head of the pump. This had fallen out and I was getting flat surface to flat surface so I wasn't getting any good pressure.

Taking it all back apart again, I finally saw the pin that fell and started to figure things out.

Wasn't 'rocket science' for me but I'd say to be alert to little gotchas like that if you take it apart.

[Richard]

I should have added... this drive pin is what locked in the timing so I didn't have to worry about that. Had the timing GEAR been removed from the timing chain, I would have had a bigger issue