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Re: [FlyRotary] Oil Pump Drive Key was Re:
[FlyRotary] Re:
Yes I put a center punch mark
on each side of the key to make it a jam fit and I put locktite on it
and hammer it in and then let it sit for a while before installing it,
works great as I have disassembled the engine and reassembled it
several times and the key never budges.
Ken Welter
Wendell,
Ed Anderson
had a problem where the oil pump Wooodruff key wasn't in the keyway.
The drive was just taken by the friction of the tensioned
nut. Worked for a while. Sooner or later, the sprocket
will slip on the shoulder of the pump shaft. The symptom is
intermittent loss of oil pressure, which gets worse as the
sprocket wears on the shaft shoulder.
So, as
I said in the post below, always make sure that the key is
actually in the keyway before fitting to nut & lockwasher.
The key itself is very tiny, and it requires a bit of juggling
to get it in the keyway in the sprocket. I normally gently stake
the keyway in the shaft so that the key can't slip
out.
Hope this
makes sense!
Leon
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