Copper cylinder head washers
- missionkz
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Bruce
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Michael
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- ayeckley
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- SWest
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- Jeff.Saunders
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- DFIGPZ
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I do this as well I always use new washers.Jeff.Saunders wrote: I have annealed plenty of them in the past. On engines where only 4 are under the head nuts, I usually replace the 8 steel ones with copper washers as well. I always felt that after you've torqued the head down, you will get a small difference in how much the copper washers will compress versus the steel washers. It probably doesn't make any appreciable difference, but I like matched sets of things when building engines.
1984 750 Turbo
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- zed1015
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Re-anneal them and if depressed just flip them over.
Never had any leak and never bought new unless buying them to replace the steel ones.
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- Z1Driver
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- missionkz
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I might be corrected but I thought the whole idea of annealing them is to relieve the work hardening stress and they seem slightly softer when doing it.Z1Driver wrote: Just a thought.....Do you really need to anneal the copper washers? Copper/brass becomes brittle when work hardened. Not heat cycles. But if I'm putting a head on I just replace the washers. They don't cost very much. And if you are annealing how are you dooing it? Thanks Tim
I just hold them at a very very tiny spot with needle nose pliers and use my small propane torch to get them glowing orange hot and dip them in water,
Been doing that since the mid 70's on just about all of them and I don't think I've ever bought new ones.
Even though I do it every time, II wasn't sure it was even necessary.
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
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- SWest
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