Quote Originally Posted by IowaTom View Post
Thanks for the help! I've ordered the plugs.
Speaking of which, there is a hole under the bolt holes, on the passenger side of where I mount the water pump. I see on my pump it allows coolant to flow thru to the radiator. A pipe plug that fits the hole came with the pump. Hmmm... no instructions on whether or not to use it. Both of the gaskets for the pump have a third hole. Do I use that plug? Can't imagine why I would.
Glad I / We could help.
Yes on the coolant bypass to the radiator. If no coolant was allowed to move at all, the engine would overheat before the thermostat could open. So this small flow allows the rising temperature to reach the thermostat which allows the hot coolant to leave the engine and obviously maintain an even temperature in the engine. So toss that plug in the junk drawer for another day.