jps
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| posted on 1/5/18 at 07:10 AM |
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Removed g'box oil seal - scratched housing
I removed the rear oil seal on my Type 3 gearbox this morning. That was a pig of a job - I couldn't help but lever off the output shaft (which
had quite a bit of movement in it) and the old seal absolutely disintegrated into a mess of twisted metal and fragments of rubber before it came out.
At one point a spring came flying out so I was pleased afterwards to get online and find out that 'garter springs' exist...
Anyway - I nicked the housing a bit. Not the actual face where the seal will sit - but the tapered section leading into it. I.e the bit that is like
\ before it goes | for the actual seal to face onto.
Apart from smoothing it back with emery paper - do I need to do anything else? And how the hell are you supposed to get seals out without damage???!!
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cliftyhanger
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| posted on 1/5/18 at 07:17 AM |
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Without see it, difficult to say if it needs the damage sorting. But a rub with fine emery paper to remove high spots as a minimum. Then possibly some
epoxy (JB weld?) if deep, and/or a smear of hymolar or similar if not deep.
As to removing seals (and core plugs etc) these things are really good: (example only, mine is a draper, had it for years)
https://www.machinemart.co.uk/p/cht267-seal-puller-tool/?da=1&TC=GS-040210267&gclid=CjwKCAjwoKDXBRAAEiwA4xnqvzcroDAlWI5W4FWMzO03lDbRxXn32dFeRm
ZxlNIwwMqNvz038Ro-pxoChwoQAvD_BwE
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jps
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| posted on 1/5/18 at 08:04 AM |
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quote:
Originally posted by cliftyhanger
As to removing seals (and core plugs etc) these things are really good: (example only, mine is a draper, had it for years)
https://www.machinemart.co.uk/p/cht267-seal-puller-tool/?da=1&TC=GS-040210267&gclid=CjwKCAjwoKDXBRAAEiwA4xnqvzcroDAlWI5W4FWMzO03lDbRxXn32dFeRm
ZxlNIwwMqNvz038Ro-pxoChwoQAvD_BwE
Exactly the tool I was using! It mostly just ripped through the front face of the seal - then I tapped the front of the seal inwards a bit - to fold
in into the hole - then gave it a final good pull with the tool and it popped out...
I'll try the hymolar - I would say the scratch is not deep (well under 1mm).
Hard to get a good photo of it
[img]
 
Description
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Bigboystoys
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| posted on 1/5/18 at 08:13 AM |
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Just polish that out so it's not sharp, as you said the tapered surface does nothing for the sealing just don't want it damaging the new
seal as you put it in.
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nick205
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| posted on 1/5/18 at 08:32 AM |
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quote:
Originally posted by Bigboystoys
Just polish that out so it's not sharp, as you said the tapered surface does nothing for the sealing just don't want it damaging the new
seal as you put it in.
Ditto - make sure the lead in cone hasn't got any raised sharp edges that would damage a new seal going in.
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bart
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| posted on 2/5/18 at 11:52 PM |
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Use a half round file not emery to knock high spots of. Then put emery on file face just to finish.
BE ALERT > BRITAIN NEEDS LERTS
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jacko
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| posted on 3/5/18 at 05:56 PM |
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And if not to late tape the hole to stop shavings getting in the box
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