Thank you Bill Kennedy, David Shepherdson, Tom Carrington, Andy Burczyk, Bob Hoover, and Dave Kautz for your helpful replies! I double-checked the ring gaps for the upper *and* lower compression rings and they were all within acceptable parameters (tolerance range for new rings is 0.014-0.022"-upper and 0.012-0.022"-lower) on this type 4 engine. I cleaned some more with some paper towels until they no longer turned grey. I guess the first cleaning wasn't thorough enough... Reinstalled the pistons back into their cylinders and slid them in back and forth a few times with a more liberal use of oil. Much less friction now. Thanks again. -- Sami ('75 Westf.) dakhlia@wuecona.wustl.edu http://wuecon.wustl.edu/~samid/
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