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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Do Series A singles have sumping problems?
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<blockquote data-quote="davidd" data-source="post: 52383" data-attributes="member: 1177"><p>My crude understanding was that the anti-sump valve that Conway sold was designed for the Series A and that it was a definite problem. When Carleton was racing the Eric Oliver TT Rep he had to install a tap or all the oil would go to the sump. However, a check valve seemed like a good thing on the A as it has a relatively powerful oil pump. It seemed to me at the time that the check valve was not recommended for the C motor as there was some question about its ability to overcome the initial spring pressure of the check valve, which is less of an issue in the A. I was under the impression that the check valve has been used by some C owners with no issues.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 52383, member: 1177"] My crude understanding was that the anti-sump valve that Conway sold was designed for the Series A and that it was a definite problem. When Carleton was racing the Eric Oliver TT Rep he had to install a tap or all the oil would go to the sump. However, a check valve seemed like a good thing on the A as it has a relatively powerful oil pump. It seemed to me at the time that the check valve was not recommended for the C motor as there was some question about its ability to overcome the initial spring pressure of the check valve, which is less of an issue in the A. I was under the impression that the check valve has been used by some C owners with no issues. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Do Series A singles have sumping problems?
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