SOHC.co.uk Forums > CB350/400

Starter Motor Oil Seal

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Bloggs:
Hi All,

On stripping the starter motor to check brushes I find its rather well 'Oiled'!
The front oil seal has worn and must be letting in oil from main engine casing.
PO (one of them!) has stripped it and fitted new brushes no that long ago, but now the brush gear is full of stickly gunk.

So has anyone changed this seal and can you suggest a source?

Trying to measure in situ I get 24 OD, 6 or 7 think and the shalf measures 13.46.
Plenty of 13x24x7 oil seal about but concerned they will be tight on the shalf.

Bloggs

Oddjob:
Are we talking about the seal inside the front housing? where the shaft of the armature sticks through?

If so that's not exactly a normal oil seal, is more like a forward facing lipped seal.

Matt_Harrington:
I've just replaced mine with an o-ring (that was what was in there) - I'll fish out the size tomorrow morning

Oddjob:
Oring is on the outside, the seal is on the inside Matt.

Bloggs:
Yes it's the seal in the end cover. I have not yet removed it as I wanted find replacement 1st, if possible. The amount of oil inside was considerable. Surprised no short circuit to date.

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