CYP77 - Police | Race Bikes | Choppers, Bobbers and Mods
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lloydy1
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by lloydy1 » Sat Jun 20, 2015 2:22 am
Thanks G very helpful.
I was thinking about making up a copper gasket. What are your thoughts on this?
Dave
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G-Man
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by G-Man » Sat Jun 20, 2015 2:39 am
Dave
Yes, a copper gasket should work. If the pistons and head have been closely matched you may need to be careful of teh clearance if the copper gasket is thinner.
G
lloydy1 wrote:
Thanks G very helpful.
I was thinking about making up a copper gasket. What are your thoughts on this?
Dave
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F
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lloydy1
- honda305.com Member
- Posts: 66
- Joined: Sun May 24, 2015 2:29 am
- Location: North Wales
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by lloydy1 » Sat Jun 20, 2015 3:44 am
G-Man wrote:Dave
Yes, a copper gasket should work. If the pistons and head have been closely matched you may need to be careful of teh clearance if the copper gasket is thinner.
G
Just measured the existing one and it comes out between 1.50 and 1.60mm. seems very thick.
I'll order a sheet of 1.50mm copper as it has no squash.
Dave
lloydy1 wrote:
Thanks G very helpful.
I was thinking about making up a copper gasket. What are your thoughts on this?
Dave
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LOUD MOUSE
- honda305.com Member
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- Location: KERRVILLE, TEXAS
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by LOUD MOUSE » Sat Jun 20, 2015 4:08 am
I'm about to list a copper head gasket (1,11mm thick, 59.42 at the cylinder) on eBay. .................lm
lloydy1 wrote:G-Man wrote:Dave
Yes, a copper gasket should work. If the pistons and head have been closely matched you may need to be careful of teh clearance if the copper gasket is thinner.
G
Just measured the existing one and it comes out between 1.50 and 1.60mm. seems very thick.
I'll order a sheet of 1.50mm copper as it has no squash.
Dave
lloydy1 wrote:
Thanks G very helpful.
I was thinking about making up a copper gasket. What are your thoughts on this?
Dave
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lloydy1
- honda305.com Member
- Posts: 66
- Joined: Sun May 24, 2015 2:29 am
- Location: North Wales
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by lloydy1 » Sat Jun 20, 2015 5:50 am
LOUD MOUSE wrote:I'm about to list a copper head gasket (1,11mm thick, 59.42 at the cylinder) on eBay. .................lm
Hi...That maybe a little thin for my needs. This engine seems to have been messed with a bit and the squish may have been allowed for. If I install a thinner gasket I may run into problems.
Thanks Dave
lloydy1 wrote:G-Man wrote:Dave
Yes, a copper gasket should work. If the pistons and head have been closely matched you may need to be careful of teh clearance if the copper gasket is thinner.
G
Just measured the existing one and it comes out between 1.50 and 1.60mm. seems very thick.
I'll order a sheet of 1.50mm copper as it has no squash.
Dave
lloydy1 wrote:
Thanks G very helpful.
I was thinking about making up a copper gasket. What are your thoughts on this?
Dave
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G-Man
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by G-Man » Sat Jun 20, 2015 6:50 am
Dave
Dennis Murfin told me that he set his squish clearance by assembling the head without gasket, then made sure the engine "just" turned over. Then With the gasket in place you should have a bit of allowance for rod stretch when it is running at high speed.
G
lloydy1 wrote:G-Man wrote:Dave
Yes, a copper gasket should work. If the pistons and head have been closely matched you may need to be careful of teh clearance if the copper gasket is thinner.
G
Just measured the existing one and it comes out between 1.50 and 1.60mm. seems very thick.
I'll order a sheet of 1.50mm copper as it has no squash.
Dave
lloydy1 wrote:
Thanks G very helpful.
I was thinking about making up a copper gasket. What are your thoughts on this?
Dave
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F
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lloydy1
- honda305.com Member
- Posts: 66
- Joined: Sun May 24, 2015 2:29 am
- Location: North Wales