Author Topic: SEaling Washers - Copper  (Read 1333 times)

Offline Eldrick

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SEaling Washers - Copper
« on: June 25, 2024, 09:19:23 AM »
I have twelve washers in the cylinder head, I belive they are copper. Two of the twelve have a (rubber) gasket built into them. When I put the engine together again should I replace all twelve washers as they look like compression seals?
1975 Honda CB400f - Red

Offline Nurse Julie

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Re: SEaling Washers - Copper
« Reply #1 on: June 25, 2024, 09:52:34 AM »
I have twelve washers in the cylinder head, I belive they are copper. Two of the twelve have a (rubber) gasket built into them. When I put the engine together again should I replace all twelve washers as they look like compression seals?
You can aneal the copper washers and use again if you haven't got replacements. The 2 with rubber in them, Dowty type washers, it's best to change them.
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Offline Eldrick

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Re: SEaling Washers - Copper
« Reply #2 on: June 25, 2024, 10:24:39 AM »
I have twelve washers in the cylinder head, I belive they are copper. Two of the twelve have a (rubber) gasket built into them. When I put the engine together again should I replace all twelve washers as they look like compression seals?
You can aneal the copper washers and use again if you haven't got replacements. The 2 with rubber in them, Dowty type washers, it's best to change them.
thank you.
1975 Honda CB400f - Red

Offline Laverda Dave

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Re: SEaling Washers - Copper
« Reply #3 on: June 25, 2024, 12:27:40 PM »
Make 100% sure they are actually copper washers before trying to aneal them. If they are the originals as fitted by Honda they are steel with a copper coating and will not aneal. Best way to tell is to scratch the surface with a scriber first.
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Offline McCabe-Thiele (Ted)

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Re: SEaling Washers - Copper
« Reply #4 on: June 25, 2024, 03:01:15 PM »
A magnet might help - the copper ones are not magnetic.
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Offline Eldrick

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Re: SEaling Washers - Copper
« Reply #5 on: June 25, 2024, 03:41:28 PM »
A magnet might help - the copper ones are not magnetic.
ohh, yes. clever.  :)
1975 Honda CB400f - Red

 

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