- Joined
- Nov 26, 2009
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- 3,448
Roger sent me this photo of his 57HP 500 racer with a 1970s style check valve breather which he's been using since 1990. He developed this setup independently on his own and says it reduced oil blowing into his catch tank to a minimum.
See it connected to the hose coming off the timing chest below.
This is similar to the reed valve breather I ran back in 1985 that had steel reeds arranged in a flower petal formation making it a one way EGR valve. But mine was connected to the bottom of a Mk2 case sump (not the timing chest). And it effectively pumped oil and mist directly into the oil tank.
See it connected to the hose coming off the timing chest below.
This is similar to the reed valve breather I ran back in 1985 that had steel reeds arranged in a flower petal formation making it a one way EGR valve. But mine was connected to the bottom of a Mk2 case sump (not the timing chest). And it effectively pumped oil and mist directly into the oil tank.
