Engine rebuild: cylinders and rings--lubed or dry?

Question:
I have seen it both ways and heard arguements for both.
Anyone here like to share their opinion?

Answers:

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I won't argue with the degree but I don't trust the lubricating qualities of transmission fluid. A light coat of clean 10W30 or 40 is just fine. Don't have to worry if there's extra, because it's what's in there anyway and the rings will wipe the cylinder walls when you install the pistons.

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I would lube them. Do you really want to rebuild an engine, then wear 10,000 miles off the cylinder walls and rings when you start it dry?

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After you have honed the cylinders and are putting in the pistons you should have a light coat of lube oil on the cylinder walls to assist in the installation (less friction) and to keep the walls from getting rust on them during the rest of the rebuild. Once you fire it up it will burn right off. Remember just a light coat!

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Just put a light coat of oil on the cylinder walls to reduce wear on start up.
Don't use assembly grease on the cylinder wall. Only the rod, main, and cam bearings get a light coat of assembly lube grease.

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spray it down with fogging oil ... its combustable so use however much you think is nessesary

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A light coat of the engine oil recommended for your engine should be on the cylinder walls an piston rings. You do not want metal on metal contact between moving parts - ever.

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the best thing to do is take clean paper towels (the lint dissolves in oil) and wipe the cylinder walls down repeatedly with wd-40 until the paper towels fail to pick up any dirt. next lubricate the rings lightly with automatic transmission fluid. any kind works but preferably ford type f. this ensures that the cylinder wall is 100% clean and the rings are lubricated. the reason we use transmission fluid rather than engine oil is that when it burns it does so cleanly with minimal carbon deposits. good luck!!!

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Always use oil when assembling any engine,do not use grease.

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lubed if yer smart.

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use a non detergent oil to let the rings seat and not build glaze during breakin period ..always lube always lube always lube

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