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Cylinder head copper washers

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steve452
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Cylinder head copper washers

#1 PostAuthor: steve452 » Mon Aug 24, 2020 8:09 pm

I still have the original head nuts and copper washers from my Z1-B. They have been sitting in a plastic bag with a liberal soaking of WD-40 or ACF50 for the past 43 years. Can I get away with annealing the washers and re-using them or would it be better to buy new. I'm loathe to spend more money than is necessary but is re-using the washers a false economy?
Z1-B, 400bhp ZX1000NGF

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CAT3
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Re: Cylinder head copper washers

#2 PostAuthor: CAT3 » Mon Aug 24, 2020 8:21 pm

Providing they are in good overall condition, no deep grooves, etc, I'd just anneal them & then clean them up with a bit of Scotch-Brite, unless you really want new ones.
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steve452
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Re: Cylinder head copper washers

#3 PostAuthor: steve452 » Mon Aug 24, 2020 8:49 pm

I was hoping someone would say that :) Many thanks for your reply.
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chrisu
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Re: Cylinder head copper washers

#4 PostAuthor: chrisu » Mon Aug 24, 2020 9:02 pm

Agree
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Bill P
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Re: Cylinder head copper washers

#5 PostAuthor: Bill P » Mon Aug 24, 2020 9:10 pm

Agree , what you buy now won't be anywhere near as good i doubt
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zed1015
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Re: Cylinder head copper washers

#6 PostAuthor: zed1015 » Mon Aug 24, 2020 9:28 pm

Yes! good to re-use.
Re-anneal and quench in water to flash off the oxides and leave a clean copper finish.
They will stay soft whether you let them cool or quench but if allowed to cool they will need cleaning.
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