Not that... My coolant drain cock. On the right side of my L275 engine block. Replacement is about $20 so I was just going to buy a plug bolt. Anyone know thread / bolt size. Would save me draining the coolant.
Not a bad idea. Insert the pet cock into a condom and screw it in. If it leaks on the thread shaft or the tip, the rubber will seal it, assuming it can handle the heat.