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. |
KeithVonLaws |
Oct 28 2016, 03:24 PM
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#82
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Member Group: Members Posts: 57 Joined: 19-July 16 From: Napoleon , Ohio 43545 Member No.: 20,205 Region Association: North East States |
I bet more failures occur due to Pre-ignition or detonation from poor tuning or other build mistakes like Mark's reference to the 96mm gasket overhang/hotspot.
Its plainly obvious clamping issues and surface finishes make a difference. Besides clamp load - bore distortion and surface finishes and all the usual hurdles we have to look at for a racing engine.....If your building a mild street application I would lean to focusing on proper build techniques attention to small details..... Lap the head to the cylinders... measure and equalize everything and use proper tuning . In my case Personally, I would like to see for myself if I can build a reliable 250 hp Type IV engine for track day events and some limited road driving for under $6000.00 - Thats my goal...pretty lofty I know. I am slowly getting my components together. |
Mark Henry |
Oct 29 2016, 08:30 AM
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#83
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
In my case Personally, I would like to see for myself if I can build a reliable 250 hp Type IV engine for track day events and some limited road driving for under $6000.00 - Thats my goal...pretty lofty I know. I am slowly getting my components together. Well that's a topic for another thread, but I'd say no to the 250hp. You're expecting too much from a pushrod engine based on a 90 year old design. I have well over $8K in parts into my long block alone, count my EFI and exhaust close to $12K for 180hp. That's just in parts. If 250hp is your goal I'd forget about the T4 and /6 and go straight to a V8. Even then your budget might be a tad light. |
DBCooper |
Oct 29 2016, 08:44 AM
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#84
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
In my case Personally, I would like to see for myself if I can build a reliable 250 hp Type IV engine for track day events and some limited road driving for under $6000.00 - Thats my goal...pretty lofty I know. I am slowly getting my components together. Well that's a topic for another thread, but I'd say no to the 250hp. You're expecting too much from a pushrod engine based on a 90 year old design. I have well over $8K in parts into my long block alone, count my EFI and exhaust close to $12K for 180hp. That's just in parts. If 250hp is your goal I'd forget about the T4 and /6 and go straight to a V8. Even then your budget might be a tad light. You could do that, or go turbo Subaru, a half-ton lighter and still a flat four. |
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