Are head and cylinder gaskets compression gaskets? |
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Are head and cylinder gaskets compression gaskets? |
stevegm |
Oct 22 2016, 01:04 PM
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#81
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Advanced Member Group: Members Posts: 2,111 Joined: 14-July 14 From: North Carolina Member No.: 17,633 Region Association: South East States |
I need to remove the heads off of a newly rebuilt engine (4-cylinder) I built (never run). They have already been torqued. Are the head gaskets and gasket between the cylinder and block, compression gaskets that should be thrown away (i.e., replaced with new one) after I untorque the heads?
The head gaskets will be easy to replace. But I'd have to pull the cylinders to replace the ones between them and the block. |
injunmort |
Oct 22 2016, 01:11 PM
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#82
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Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
i would not disturb the base gaskets and you can anneal head gaskets and reuse.
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HAM Inc |
Oct 22 2016, 05:24 PM
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#83
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Senior Member Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
i would not disturb the base gaskets and you can anneal head gaskets and reuse. I think he's talking about head gaskets, not copper ex. gaskets. Copper ex gaskets you can anneal. Unless he's switched to an aftermarket copper head gasket the head gaskets are laminated aluminum. Never heard of anyone annealing them. They should not be used in the first place. But if you do choose not to use the gaskets, you increase your compression ratio if you don't put equally thick barrel spacers under the jugs. You also reduce your deck ht by the thickness of the gaskets, which new is ~.75mm. If you have 1mm or more deck ht in your cylinders and you are happy with the bump in comression then no need for barrel spacers. If the engine was never run you should be able to retorque the gaskets if you want to reuse them. I would try to put them back in the same positions, though. |
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