Clive
I tried that method first of all. What I found was that once on the dynamo, the cork gasket was incredibly difficult to locate into the timing cover recess. Essentially, the gasket outer circumference was slightly greater than that of the recess, and distorted further by the slight distortion of the circularity - is that a word? - by the deformity caused at the drawbolt. I found that due to the dynamo proper, and the need to locate the drawbolt, I also couldn't prise the gasket into the recess.
Oil leak in vicinity of dynamo/crankcase
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Re: Oil leak in vicinity of dynamo/crankcase
I've just been out to check on my 650. As I thought, the cork gasket doesn't go into the timing chest recess, but is pressed up against it.
Malc
Malc
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Re: Oil leak in vicinity of dynamo/crankcase
The cork gasket must fit into the recess. I mounted the Dynamo on my 1956 model 30 for 20 years and 43000 km.ago, and it has been leakfree since it was mounted.When I mounted the dynamo first time oil was seeping out on the underside of the dynamo, I found that it was because the oil was seeping between the shaft and the spacer that sits between the gear wheel and bearing, I applied a thin layer of RTV silicone to the shaft, and a thin layer of aquarium silicone glue on the outside of the cork gasket, it has been leakfree in since it was fitted.
regards Poul
regards Poul
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- clive
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Re: Oil leak in vicinity of dynamo/crankcase
I wonder if the cork gasket is the right size then. I agree the stud causes disruption to the circularity but in my case it all fitted easily.Oggers wrote:Clive
I tried that method first of all. What I found was that once on the dynamo, the cork gasket was incredibly difficult to locate into the timing cover recess. Essentially, the gasket outer circumference was slightly greater than that of the recess, and distorted further by the slight distortion of the circularity - is that a word? - by the deformity caused at the drawbolt. I found that due to the dynamo proper, and the need to locate the drawbolt, I also couldn't prise the gasket into the recess.
clive
if it ain't broke don't fix
if it ain't broke don't fix
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Re: Oil leak in vicinity of dynamo/crankcase
Clive
Quirte correct. I did wonder that myself as the gasket was somewhat loose on the dynamo. All 3 - now used - came from our noble club spares.....
Where do you believe the leak path is likely to be at the interface? Inner or outer edges or mating faces? If the latter you may stand a chance with cork, if the former - not so sure.
Quirte correct. I did wonder that myself as the gasket was somewhat loose on the dynamo. All 3 - now used - came from our noble club spares.....
Where do you believe the leak path is likely to be at the interface? Inner or outer edges or mating faces? If the latter you may stand a chance with cork, if the former - not so sure.
- Samuel
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Re: Oil leak in vicinity of dynamo/crankcase
I too found the Club spares cork gasket to be too large and reverted to the old one suitably cleaned up when I was refitting dynamo to my now ex G9.
Sam
- clive
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Re: Oil leak in vicinity of dynamo/crankcase
Sam, If you ever decide to ex my ex G80 give me first refusal!!!!!!
clive
if it ain't broke don't fix
if it ain't broke don't fix