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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starting the shadow after few months - Oil problem
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<blockquote data-quote="timetraveller" data-source="post: 15425" data-attributes="member: 456"><p>Hello pete4000. I am not sure that I have understood your problem correctly. Do you have two separate exhaust pipes? If that is correct and the exhaust pipe is clean near to the exhaust port and oily near to the rear end then that could mean that oil is being evaporated near to the port due to the heat there and then condensing out near the cooler end of the pipe. If the engine is really new then this might just be a matter of waiting for the piston rings to bed in before this problem goes away. If you have the standard Vincent exhaust pipe of two joining into one then the oil could be coming from the rear cylinder. Have you checked that? My experience is that if the oil is going down the lower exhaust valve guides then the valve head will be covered in oil after the bike has been stood for some days. Bon chance</p></blockquote><p></p>
[QUOTE="timetraveller, post: 15425, member: 456"] Hello pete4000. I am not sure that I have understood your problem correctly. Do you have two separate exhaust pipes? If that is correct and the exhaust pipe is clean near to the exhaust port and oily near to the rear end then that could mean that oil is being evaporated near to the port due to the heat there and then condensing out near the cooler end of the pipe. If the engine is really new then this might just be a matter of waiting for the piston rings to bed in before this problem goes away. If you have the standard Vincent exhaust pipe of two joining into one then the oil could be coming from the rear cylinder. Have you checked that? My experience is that if the oil is going down the lower exhaust valve guides then the valve head will be covered in oil after the bike has been stood for some days. Bon chance [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starting the shadow after few months - Oil problem
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