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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Smoking After Rebore Is the Bore Glazed ?
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<blockquote data-quote="Matty" data-source="post: 59426" data-attributes="member: 1339"><p>Thanks for the prompt replies.</p><p></p><p>I am sure the oil hole is bored at an angle to come out well below the scraper ring and checked this very carefully some years ago when I had a new liner and a rebore to standard. However I blanked the feed to the oil hole long before this latest +20 rebore so this can not be the cause of the blue smoke.</p><p></p><p>The oil I am using is Morris Golden Film 20/50 which it claims is specially formulated for classic cars and bikes. I do not know if is fairly "straight" oil or semi-synthetic - it does not say on the can. However most of my friends in the VMCC and VOC seem to use it without any problems.</p><p></p><p>Will try "blasting " the old bike for a good distance on a big road this afternoon in a straight line at a constant fairly high speed (60-70) to see if this helps and if not get the barrel honed again.</p><p></p><p>Not too worried in the short term because it will be OK for club runs, but hope to have it fixed before my annual ride (250 miles) up to Liverpool for the Manx GP (now Classic TT)</p><p></p><p>Matty</p></blockquote><p></p>
[QUOTE="Matty, post: 59426, member: 1339"] Thanks for the prompt replies. I am sure the oil hole is bored at an angle to come out well below the scraper ring and checked this very carefully some years ago when I had a new liner and a rebore to standard. However I blanked the feed to the oil hole long before this latest +20 rebore so this can not be the cause of the blue smoke. The oil I am using is Morris Golden Film 20/50 which it claims is specially formulated for classic cars and bikes. I do not know if is fairly "straight" oil or semi-synthetic - it does not say on the can. However most of my friends in the VMCC and VOC seem to use it without any problems. Will try "blasting " the old bike for a good distance on a big road this afternoon in a straight line at a constant fairly high speed (60-70) to see if this helps and if not get the barrel honed again. Not too worried in the short term because it will be OK for club runs, but hope to have it fixed before my annual ride (250 miles) up to Liverpool for the Manx GP (now Classic TT) Matty [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Smoking After Rebore Is the Bore Glazed ?
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