I was very impressed when I met him and toured his shop. He made a rig to test the leak down of every head he fixes on compressed air. Typical practice it to grind the valve seats at 45 deg and the valves at 46 deg. This insures a seal by causing an interference. The down side is a thin sealing area that may not wear well. Not good enough for Randy. He modified a Swiss valve grinding machine to use collets to hold the valves perfectly concentric during resurfacing. He now gets perfect seals using 45 and 45 angles and his customers get a long lasting valve job. Randy can also fix damaged heads, like broken fins and buggered threads. His repairs not only work well, the look good too. He is also set up to machine and balance flywheels.
Long's Mechanical Services
R.D. 1, Box 685-K
74 Risbon Road
Honey Brook PA 19344
I believe Bob's and several other shops send their head work to him. Did I
mention he rides an R90s :-)
P.S. I have no interest in Randy Long or his shop. I have put this page up because many have asked me for his address and phone number.
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