7 replies to this topic

[psychobob]

Will a replacement refurbished diff cover need machining for a new pot joint? One of my pot joints has loads of play in it. Will a new diff cover sort out the play, or will it need a bush reaming? Never had to do a diff before, so a bit baffled.

[Cooperman]

After fitting the new diff cover output shaft bush it needs to be machined to match the output shaft.

[Alpenflitzer]

or take the diff and a new pot joint, fix the bush and have it reamed so that the new pot joint fits properly. Then add the oil seal and mount the diff cover.

[psychobob]

is it likely to be just that bush that is causing all the play? it was leaking oil and I fitted a new oil seal but its only lasted a couple of months and its weeping again. can I swap it with the engine in situ too? will a normal engineering company be able to machine it, or is there anywhere anyone recommends? ideally in the north Manchester area?

[psychobob]

Anybody?

[Guess-Works.com]

There's a subtle difference between reaming and machining.... Certainly don't hand ream a diff side cover..

For the bush to perform its correct job of supporting the output shaft and drive shaft coupling ( of whatever variety ) it must be machined perpendicular to the face of the diff side cover and centrally to the locating collar on that face, this can only be done effectively on a specifically designed faceplate on a lathe, or a mill at a push. A ream of the correct size can then be used to finish the bush or more often using a tool in the headstock of a lathe.

 

Failure to do this will mean premature wear and failure, and back to square one...

 

The alternative is a good used 2nd hand one...

[ACDodd]

I keep a small stock of rebuilt side plates with new bushes. £25 inc postage to uk. I will need your old one in exchange. I have a suitable lathe mounted tool as described by Guessworks for doing just this job.

AC

[psychobob]

I've actually just ordered one from ebay, that I'm assured is in good order, so fingers crossed.

 

 

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