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post #1 of (permalink) Old 07-20-2019, 10:54 AM Thread Starter
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ritchie-t's Avatar
Joined: Oct 2014
From: London
I Ride: ZX7R 1996 road bike, ZX7R 1997 race bike

Posts: 343
Lapping kit oil pump.

Just wondered if anybody has fitted a new kit oil pump and it been a bit on the tight side? It feels like if I pushed it in I wouldn’t get it out again. It would be an interference fit. I know it needs to be snug, but this is too tight.

Looking at the kit manual it does say that if the kit pump is too tight then to lap the surface to make it fit. So I assume this was not uncommon back in the day.

I can always go to a machinist to get this done, but I was wondering if I am missing a trick not doing it myself. Has anybody done this? If so, I would be curious to know what method is used. With the shaft hole going through off-center it makes it a challenge to spin perfectly central.
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