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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Breather Timing: A long description of a different way (Part 1)
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<blockquote data-quote="Black Flash" data-source="post: 103902" data-attributes="member: 433"><p>Unfortunately I do not have a picture at hand.</p><p>On my comet I made a new spoke with an abutment for a spring to rest against. Then I turned a stepped, threaded bush going from the inside of the timing chest out. The nut on the outside is secured with loctite so the bush cannot fall inside. On the inside I fitted a valve stem seal of a Honda 400cc 4 cylinder 4 valve engine. They have very tiny valves with a valve stem of only 3 mm iirc. With the spring over the end against the abutment the spoke gets pushed through the valve stem Seal and the lifter assembled.</p><p>So the seal is actually inside the timing side.</p><p>Works great, never had the slightest hint of oil at the valve lifter cable entry.</p><p>Bernd</p></blockquote><p></p>
[QUOTE="Black Flash, post: 103902, member: 433"] Unfortunately I do not have a picture at hand. On my comet I made a new spoke with an abutment for a spring to rest against. Then I turned a stepped, threaded bush going from the inside of the timing chest out. The nut on the outside is secured with loctite so the bush cannot fall inside. On the inside I fitted a valve stem seal of a Honda 400cc 4 cylinder 4 valve engine. They have very tiny valves with a valve stem of only 3 mm iirc. With the spring over the end against the abutment the spoke gets pushed through the valve stem Seal and the lifter assembled. So the seal is actually inside the timing side. Works great, never had the slightest hint of oil at the valve lifter cable entry. Bernd [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Breather Timing: A long description of a different way (Part 1)
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