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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="oexing" data-source="post: 103906" data-attributes="member: 1493"><p>Most breather designs are a bit bulky to include in the Vincent bikes, same with the BMW type when you have to fabricate a housing for it. In case of deciding on the valve cap place there is not a lot of space around there. I am thinking of welding just an alu hose connector on an old cap and place the reed type in photo below at the highest place in the rubber hose, at the end possibly. So the minimal oil mist will flow back into the engine after using that length of hose for separating from the air. I had same type on some more bikes without adding a canister to the hose but did not need to because no oil was ever found from the exit. </p><p> This design is very easy to fabricate, with angle grinder, file and abrasive on a plate. The reed blade is a piece of feeler gauge of 0.10-0.15mm ( 4-5 thou) fixed with a 3mm cheese head screw. The hose is 8mm i.d. or 10 mm i.d., and the valve accordingly, no need to go much bigger. There is only little air coming out as long as the engine is allright and no holed piston inside. </p><p></p><p> Vic</p><p>[ATTACH=full]25663[/ATTACH]</p><p></p><p>[ATTACH=full]25664[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 103906, member: 1493"] Most breather designs are a bit bulky to include in the Vincent bikes, same with the BMW type when you have to fabricate a housing for it. In case of deciding on the valve cap place there is not a lot of space around there. I am thinking of welding just an alu hose connector on an old cap and place the reed type in photo below at the highest place in the rubber hose, at the end possibly. So the minimal oil mist will flow back into the engine after using that length of hose for separating from the air. I had same type on some more bikes without adding a canister to the hose but did not need to because no oil was ever found from the exit. This design is very easy to fabricate, with angle grinder, file and abrasive on a plate. The reed blade is a piece of feeler gauge of 0.10-0.15mm ( 4-5 thou) fixed with a 3mm cheese head screw. The hose is 8mm i.d. or 10 mm i.d., and the valve accordingly, no need to go much bigger. There is only little air coming out as long as the engine is allright and no holed piston inside. Vic [ATTACH=full]25663[/ATTACH] [ATTACH=full]25664[/ATTACH] [/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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