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 27 2016, 05:11 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 |
you guys know what i did today, i went for a drive in my special kind of stupid, the one with head gaskets. kimbo, refer to your responses to the capt n back in 2014. also, try some prussian blue after your lapping clean up. no guessing on seal then. what have i learned from this, there is more to "dont use head gaskets" it took kimbo three pages of post to even go into lapping cylinders, an adequate tutorial, yet so incomplete. how do you make sure you have uniform mating surfaces? at least he did go into a lapping procedure. HAM,INC, not so much. i have never met a "professional engine builder, that will reveal their proccess, i dont blame them, it is proprietary info, but i have trouble with "dont use headgaskets because i dont" because there is far more to it than that. enough said, now flame me douche bag.
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Mueller |
Oct 27 2016, 06:12 PM
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#83
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914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
you guys know what i did today, i went for a drive in my special kind of stupid, the one with head gaskets. kimbo, refer to your responses to the capt n back in 2014. also, try some prussian blue after your lapping clean up. no guessing on seal then. what have i learned from this, there is more to "dont use head gaskets" it took kimbo three pages of post to even go into lapping cylinders, an adequate tutorial, yet so incomplete. how do you make sure you have uniform mating surfaces? at least he did go into a lapping procedure. HAM,INC, not so much. i have never met a "professional engine builder, that will reveal their proccess, i dont blame them, it is proprietary info, but i have trouble with "dont use headgaskets because i dont" because there is far more to it than that. enough said, now flame me douche bag. Lapping by hand is not a secret or tightly controlled trick or procedure. A quick search shows how to lap, it is service books for assemblies that require it for proper fit of parts. It is not that special of a job that one must take an oath so as to not teach the wrong person. It is proven the gaskets work, it is also proven no gaskets work (both stock and high performance applications) Some people get stuck on the "factory only way of doing things" and refuse to deviate from that path. Why knows, maybe if the 914 was still made in '77 or later the factory would have ditched the gaskets? And you still want to have decent sealing surfaces on the head and the cylinder. The gasket is not a band-aid for poor workmanship or poorly finished parts. Curious if the die hard pro-gasket crowd has changed their 914 in any way using non stock parts such as bigger sway bar or stiffer Springs? If so how can they justify doing that since the factory didn't do it or say it was okay? |
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