Gearbox rear oil-seal removal

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JohnRoss
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Gearbox rear oil-seal removal

Post by JohnRoss »

I would like to replace the rear oil seal on the gearbox connecting to prop shaft.
The seal is held in place by a metal cap tightly pressed on to the aluminium case.
I notice two crimped spots around the edge of this cap.
What is the best way to remove this cap?
John Ross
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bmcecosse
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Re: Gearbox rear oil-seal removal

Post by bmcecosse »

You need to prise it off. Do you have the new seal in stock? The bronze sleeve may be worn - a new seal may not make much difference - but worth a try.
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les
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Re: Gearbox rear oil-seal removal

Post by les »

The original one is crimped over in a couple of places, neatest way to get over this is to file an 1/8'' groove at these points.

JohnRoss
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Re: Gearbox rear oil-seal removal

Post by JohnRoss »

bmcecosse wrote:You need to prise it off. Do you have the new seal in stock? The bronze sleeve may be worn - a new seal may not make much difference - but worth a try.
I can get seals locally. "the bronze sleeve" is that the end of the prop shaft that slides onto the splines? If this part is worn I could get it turned or resleeved locally and a suitably different sized seal fitted. Would that work?
bmcecosse
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Re: Gearbox rear oil-seal removal

Post by bmcecosse »

See the MOSS exploded view http://www.moss-europe.co.uk/Shop/ViewP ... exID=17075 Note the seal IS the metal part that you will need to prise/cut off - it may not be reusable. Yes - if the bushing is worn - I'm sure you can have one made locally. New ones need to be pressed in and then reamed to size anyway. How bad is the oil leak? If 'not much' I would leave well alone! Can you noticeably lift the prop shaft up/down in the bushing ?
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