#A. Use a thick soup, fruit, or veggie can that will fit over the head, after the fins has been removed. You can remove the fins by using a hole saw chucked into a electric drill or drill press. Take the head off the engine, and remove the sparkplug. Place the head into a vise, and slowly saw off the fins. Once this has been done, select you can that will fit over the head with a 1/8th. inch or more of clearance, but not more then a 1/2" inch. either epoxy, or solder tubing into the can at 1/2" inch from each end of the can. Drill a hole into the bottom of the can that just allows the threads of the sparkplug to pass through.
Use a metal washer the threads can pass through to for further strength. Make a base rubber washer for the base of the can, and at least a 1/4" wide, and one for the sparkplug hole as well. For the height of the can, measure from the base of the head, to the top of the head. Add 1/8th of a inch to the height, this will allow a tight seal at the rubber gaskets. Use a good grade automotive gasket sealer, non-harding like for a oxygen sensor, or intake manifold. Put sealer on both sides of both rubber gaskets. The top gasket goes inside the can at the top, with the metal washer on the outside of the can. The sparkplug is what holds the can firmly in place. Allow the sealer set for a day, before testing, for any water leakage. I have used this method many times, and has always worked for me. And all the materials should be around your house for use!

Your Friend Always, Butch
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