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While true that the early Manx's had exposed valve train, Ray Petty created an enclosed system that Jerry Summerfield and Andy Molnar both provide today, so not that hard to get around. My Manx has an enclosed Summerfield cam-box and is no problem.Another impractical aspect of the original Manx's is the open primary chain with oiler. That is easily replaced with a belt drive which most racers use todayHere's a picture of a Manx engine with an enclosed cam box:[ATTACH=full]87424[/ATTACH]
While true that the early Manx's had exposed valve train, Ray Petty created an enclosed system that Jerry Summerfield and Andy Molnar both provide today, so not that hard to get around. My Manx has an enclosed Summerfield cam-box and is no problem.
Another impractical aspect of the original Manx's is the open primary chain with oiler. That is easily replaced with a belt drive which most racers use today
Here's a picture of a Manx engine with an enclosed cam box:
[ATTACH=full]87424[/ATTACH]
