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MG MGB Technical - overdrive oil seal

The rear oil seal on the overdrive on my 1972 MGBGT ( 4 seed syncro) is leaking, can I renew it in situ. if so how can I lock the shaft to undu the flange nut to the prop shaft?
Wil Wilkinson
W Wilkinson

Yes, a length of angle with two holes for bolts on one side of the flange, cut-away to allow space for the socket on the nut if required, will hold the flange while removing/replacing the nut (55-60 ft lb, I believe). Not sure if oil will run out or not, probably if the front is raised, maybe not if the rear is raised. Then it is a case of hooking the seal out. Check the flange shaft isn't grooved, if it is you may be able to get away by fitting the new seal at a different depth in the casing. I think I remember seeing somewhere it will recess into the casing, but should actually be flush.
P Hunt

Hi Wil,

Further to Paul's comment, if the flange shaft is grooved it can easily be fixed with a special stainless steel sleeve. These are designed to be fitted over the shaft and provide a smooth surface for the oil seal. I have used them and they are quite easy to fit with a vice. They are available from bearing shops, at least here in Oz. Take your flange shaft with you so that the correct size can be supplied.

Herb
Herb Adler


Thanks for the info, much appreciated
Wil
W Wilkinson

This thread was discussed between 04/03/2010 and 05/03/2010

MG MGB Technical index

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