Oil Leak on Colchester Bantam

This topic has 4 replies, 3 voices, and was last updated 28 October 2020 at 06:20 by David Francis 3.

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27 October 2020 at 11:25 #503704
David Francis 3
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@davidfrancis3
Have a Colchester Bantam 1600

It leaks oil from the headshaft behine th chuck when run at fairly fast speeds.

Not sure if it needs oil seal replacement and what sort of job it would be.

Any info would be appreciated
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27 October 2020 at 11:25 #27735
David Francis 3
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@davidfrancis3
27 October 2020 at 12:48 #503726
Emgee
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@emgee
Hi David

You don't say if you have the manual but if not I suggest you join the Colchester iO Group where there is lots of info including the Manual FOC.

**LINK**

Emgee
27 October 2020 at 22:32 #503803
Dave Wootton
Participant
@davewootton
Hi David

I've got a Bantam 2000 which used to do the same when run fast or for very long periods, Following a posting by Gray Meek about his mill gearbox leaking caused by it pressurising itself as the oil warms. I carried out the same experiment as outlined in his post, namely putting the finger cut from a nitrile glove over the filler with the plug removed, and it did inflate before it popped off, so I drilled a 4mm hole in the headstock filler plug and it has not done it since.

According to the manual for mine there are only labyrinth seals on the spindle, not garter type seals.

Dave
28 October 2020 at 06:20 #503815
David Francis 3
Participant
@davidfrancis3
Hi Dave

Thanks for the quick reply, I will give your suggestion a try.

Many Thanks

David Francis
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Oil Leak on Colchester Bantam

Oil Leak on Colchester Bantam

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