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TR2/3/3A Picture of the Zinc washer.

karls59tr

Obi Wan
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IMG_20240409_140925.jpg
 
That looks like copper to me, but I realize that colors in digital photos may not be perfect. Also, ordinary washers of any grade rarely have things stamped on them.
 
That looks like copper to me, but I realize that colors in digital photos may not be perfect. Also, ordinary washers of any grade rarely have things stamped on them.
Do you think this washer is going to be a problem in terms of it's ability to told the torqued head nut?
 
If that really is a copper washer, it's a problem. Copper washers are soft, used for things like sealing. If you use it on a head stud, it may compress and allow the joint to loosen.

I don't really know what is the best way to go from here. If it were me, and only one or two copper washers, I think I would just replace them, retorque, and hope for the best. If much more than that, I think I would replace them all. That means redoing the head installation, with a new gasket; a pain, but not the end of the world.
 
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