doing a coolant change on my speed triple, I've got a load of copper washers, and want to replace the coolant drain plug washer with one if these. It looks like the original washer is alloy, would this matter? Chemical reaction to the metal of the engine block maybe?
The coolant drain plug on my Daytona is copper. This is from the factory. I’m pretty sure of this as the head gasket kit I’m currently fitting comes with a replacement copper washer. I think alloy washers are used as they can be used a couple of times without replacement whereas a copper one should be changed after each use.
