> ISTR that a failure of the key in the shaft can cause this. I
> assume, when
> I get it home tomorrow that it will not be a major fix, but any
> suggestions
> as to how to diagnosis and approach the problem would be
> appreciated. Also,
> any other educated guesses as to a possible cause?
TRactor motors are fairly well known for having the oil pickup screen break
where it is soldered to the pickup tube. If a piece of swarf gets through
the break, it will lock the oil pump rotors. In my case, the flat end of
the shaft was what sheared off, requiring replacement of the shaft (and the
swarf was a piece of locktab caused by the DCO trying to reuse them).
There was a write-up in one of the Tech Talk volumes about how to reinforce
the pickup screen. Basically, you take some copper wire and thread it
through the screen, over the top of the pickup tube and tie it under the
screen. Seems to've worked for me.
Oil pump itself was OK, except for slight damage where the swarf got pinched
between the rotors. Still works fine, tho.
Randall
|