Years ago in a distant nuther world a few lifetimes ago...I seem to remember we replaced the pistons & cylinders more because the pistons themselves had too much play in the upper ring groove with new rings in 'em. That problem caused some pumping of oil into the combustion chamber. Seems like it was .004 max between the ring and the piston and most with many miles had more like .006 or 8 of clearance. That and the set wasn't that much in the whole scheme of things to take a chance on having a comeback, so every overhaul with very few exceptions got a new set. Granted the Boxer set is more spendy, but the theory remains. Spend the $$ the first time around if possible and save the heartache of having to do it again and cussing the stupid car for the mechanics transgresions.. .02cents worth from an old school retired tech Daryl of AA Transaxle Duvall, WA. (Seattle area) 1-877-377-0773 toll free 425-788-4070 aatransaxle.com |
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