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Posted by Doug Elliott on August 19, 1999 at 20:37:44:

In Reply to: MY FOURTH VALVE STICKS!!! posted by Chris Daniels on August 18, 1999 at 17:17:07:

It sounds like this is a case of a bent piston valve casing, probably from being bumped on one of the slides. I'm no repairman, but I do know something about abrasives and lapping- it's very important to use the right type and grade of lapping compound, and to lap the casing with a real lap, not the valve itself! As for Lava soap, I can't imagine that the abrasive in it is even close to the proper grade- maybe Pepsodent is, but the real answer is to do it the right way with the right materials, by somebody who knows what they're doing.

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