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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
anti sumping valve
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<blockquote data-quote="john998" data-source="post: 19046" data-attributes="member: 289"><p>Hello,</p><p>Not sure how the Conway valve works, but the type fitted to the Velocette is a none return ball valve with a light</p><p>spring keeping the ball on the seat. Obviously it is fitted such that the pump suction can over come the spring.</p><p>The problem with this type is that any air leakage after the ball valve leaves the ball on it's seat and no oil.</p><p>After seizing a MAC Velo the ball went in the scrap box. Regards John.</p></blockquote><p></p>
[QUOTE="john998, post: 19046, member: 289"] Hello, Not sure how the Conway valve works, but the type fitted to the Velocette is a none return ball valve with a light spring keeping the ball on the seat. Obviously it is fitted such that the pump suction can over come the spring. The problem with this type is that any air leakage after the ball valve leaves the ball on it's seat and no oil. After seizing a MAC Velo the ball went in the scrap box. Regards John. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
anti sumping valve
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