Re: Ford 655C Backhoe

Posted by RBoots on October 20, 2015 at 20:43:12 from (173.209.212.145):

In Reply to: Ford 655C Backhoe posted by FC Andy on October 20, 2015 at 16:09:31:

I put an injection pump on a JD 8300 this
summer, a JD Reman from JD. Didn't start real
well, sluggish acceleration, smoky, almost
like timing was off. But it wasn't, my timing
of the pump was dead on, I must have
rechecked it a dozen times. I retarded the
timing as the adjustment slots would allow,
guessing 20 degrees. It started and ran very
well, like it should have run. Asked the
service manager where I got the pump from
what be thought, be said it was nothing with
their pump, it was myself screwing up the
pump to engine timing. Said he had never seen
a pump timed wrong internally. So I asked a
JD tech I know, he said he had changed 5
pumps this year that were timed wrong
internally or just plain didn't work, all JD
Reman pumps. I put the pump where it needed
to be for removal, locked the flywheel with a
5/16 bolt, installed my lock bolt in the
pump, called JD and told them to have their
tech look at it. Be came out, verified my
timing, unlocked the pump and flywheel, tried
to start it, and being about 50 degrees
outside, it wouldn't even try to start. I
showed him how well it ran with the pump
retarded as far as it would go, and he
immediately condemned the pump. He ordered a
new pump and brought it out when it came in
and put it on and timed it the same way I had
done the other one, and it worked like a
charm. He said he couldn't have done it any
better timing the first one himself, and that
the pump WAS timed wrong internally, and even
as badly as his SVC manager didn't want to
admit to fault on JD's part, they didn't
charge me to have their tech verify my
problem with the 1st new pump and
subsequently change it to the 2nd new pump. I
can't remember if there is much for slots to
adjust the timing much on that Lucas pump,
but you could scribe the pump and housing
where it is at right now, IF you are CERTAIN
you have it timed correctly, and rotate the
pump one way then the other to see if it
clears up the problem. Not to leave it there,
in a "guessed timing location" but it may
help you determine if there actually might be
something going on with the pump.

Ross

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