Oil seal replacement on MM axle

for those with Series MM sidevalve cars produced between September 1948 and February 1953
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pgc520
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Oil seal replacement on MM axle

Post by pgc520 »

MM split axle - Propshaft oil seal replacement ?

Is it possible to replace the prop seal without spliting the axle and removing the diff unit ?

My workshop book is not much use on the subject
mike.perry
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Post by mike.perry »

Yes!!,
Support the rear axle on axle stands (safety first)
Remove 4 nuts and bolts holding propshaft to diff and push propshaft out of the way. You may find it necessary to apply the handbrake in order to undo the bolts.
With handbrake applied remove nut and washer on end of pinion shaft then pull off flange. It may be necessary to tap it off with a hammer.
Remove oil seal and take it along to your local bearing supplier to match it for a replacement.
Re-assemble in the reverse order and check the gearbox oil level. Top up with Hypoid 90.
Whist you are there check the shock absorber oil levels.
Now go out and enjoy a drive in your MM.
8009STEVE
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Post by 8009STEVE »

It may be necessary to tap it off with a hammer
Or use an impact gun, if you have one.
wimor
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Post by wimor »

Remove oil seal and take it along to your local bearing supplier to match it for a replacement.
I have found the oil seal for my MM by ESM. See http://morrisminorspares.co.uk/shop/ind ... c1234262df.
pgc520
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Post by pgc520 »

Mike

Thanks for the info, is the nut reverse thread ? or should it come off anti clock wise ?

Have orderded seal from esm

Thanks

A
wimor
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Post by wimor »

is the nut reverse thread ? or should it come off anti clock wise ?
The nut has reverse thread.
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