Posted by kevin LA-CA on July 19, 2009 at 08:00:46 from (173.60.235.196):
I was reviewing my I&T repair manual to determine valve clearances for my 10-20. It lists 0.011", but for the W30 & F30 it show 0.017". Is this a misprint? Also is this hot or cold?
I have two 10-20's but the manifolds are different. One is similar to late '20s regular - single piece casting with all pipes dropping down to common exhaust point. The other has the exhaust exiting up into a runner horizontal over the ports. Finally there is single drop next to the tank. This one has a bolt on plate in the center of the exhaust runner.
Any reasons for the difference (age, performance)?
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