SOHC.co.uk Forums > CB350/400
SEaling Washers - Copper
Eldrick:
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?
Nurse Julie:
--- Quote from: Eldrick 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?
--- End quote ---
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.
Eldrick:
--- Quote from: Nurse Julie on June 25, 2024, 09:52:34 AM ---
--- Quote from: Eldrick 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?
--- End quote ---
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.
--- End quote ---
thank you.
Laverda Dave:
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.
McCabe-Thiele (Ted):
A magnet might help - the copper ones are not magnetic.
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