Quote:
Originally Posted by Phil@BPC
I think the photos may be giving an optical illusion by playing tricks to the eye. The sleeves pictured have no lip above the block surface. Once the sleeves are installed, the block is then decked to make sure everything is flat for a good sealing surface. Most sleeves have a lip that is cut into the block that prevent the sleeve from falling or dropping down making contact with the crankshaft. This lip will help recess the top of the sleeve into the block.
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Thanks for your explanation. I never thought there was any extension of the sleeve above the block, just that you had to machine a recess into the deck of the block to accommodate the lip/flange of the sleeve. Would you agree that method seems much less prone to displacement than a sleeve without a lip?