Engine Auptosy Dial Indicator
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Next, the valve guides are checked using the service manual procedure, spacing the valve open about half with some 7/16 nuts behind on the stem (after removing the spring). With a dial indicator rigged to the valve's margin (edge), rock the valve back and fourth to check the side motion. The service manual allows up to .017 inch; ours showed .014 inch with the old valves, and dropped to .010 inch with new valves. The guides were good, but we'll replace the valves, since the margins are ground thin from too many valve jobs. View Related Article
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