BigRed350x Posted February 7, 2008 Report Posted February 7, 2008 Get a 400 grit wet/dry sand paper and a FLAT block, piece of steel, etc. Remove the studs from the cylinders....add water, and make a gentle figure 8 on the surfaces against the sand paper for a 5 to 10 seconds at a time. When you can clearly see scratches across the gasket surfaces, you're set. Lapping involves using an abrasive compound, which....is similar to using the wet/dry sand paper... After having problems with a brand new cub cylinders in 06, I do this every time I put a motor together, new or old... Takes 5 minutes including setup....just make sure you have a flat piece to put the sand paper on and work with. Do NOT over do it, aluminum is very soft...and it only takes a few swipes to get a nice clean, flat surface for gasket mating. Damnit! I knew using that belt sander with 60grit was a bad idea! :: Quote
dajogejr Posted February 8, 2008 Report Posted February 8, 2008 Damnit! I knew using that belt sander with 60grit was a bad idea! :: No no...that's how you mill the head.... LOL... Quote
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