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Old 04-14-2019, 02:43 PM
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lat 64 lat 64 is offline
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I'll go on record as saying you should have an experienced hand oversee or do the grinding. It is not an academic exercise—there is an art to it. Best to learn on a disposable engine like a Chevy. You can put too much sideways pressure on the stone and get the seat out concentric alignment with the guide. This is not readily apparent until the pre-assembly or checks with Prussian blue.(

If you choose grinding over cutting, you will make a lot of grit dust. It will go all over the engine. This stuff is ABRASIVE. Clean, clean, clean.

Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1

"Since when is napping doing nothing?"

Last edited by lat 64; 04-14-2019 at 02:46 PM.
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