Quote Originally Posted by GeorgeH View Post
Bleeder screws fail because they are overtightened and that causing them to stretch and then adding heat pops the head off. I've probably installed thousands of plastic bleeder screws, if they are fresh I reuse, if they are unknown age then I replace. Never had one fail.

Waterpump, I use BMW.
+1
I’ve installed only a few plastic bleeder screws and never had any issues.


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