Originally posted by theredboat
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1: Remove the thermostat (I know, you don't have one), replace the housing, and clamp off the bypass line. This will insure that water gets flushed out of the block.
2: Disconnect the raw water intake hose from the through-hull and lead it into bucket of antifreeze.
3: Be SURE you're in neutral! The cutlass bearing needs water to cool and lube it! Secure the prop with a rag or line so it won't rotate from any residual drag from the transmission.
4: Run the engine just long enough to get pink antifreeze out of the exhaust, adding to the bucket as needed until this happens.
5: Kill the engine, remove the plugs, put a few squirts of MMO in each cylinder (as described elsewhere) and use the starter to turn it over a rev or two to distribute the MMO.
All in all, pretty similar to what you would do in the water. The key points
are to remove the thermostat and imobilize the prop.
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