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Lambeck mounted a dial indicator on the end of the crank and bolted up the rear-main cap to check how far the crank “walked.” If it’s in excess of 0.0005-inch, there could be a binding problem. We saw no measured movement on our Scat crank, so Lambeck lightly scuffed the Clevite 77 bearings with a Scotch-brite pad, re-washed them, and dropped the crank into place. Don’t forget that the 400 uses a unique rear seal. View Related Article
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