Are head and cylinder gaskets compression gaskets? |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Are head and cylinder gaskets compression gaskets? |
stevegm |
Oct 22 2016, 01:04 PM
Post
#1
|
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 23 2016, 04:02 PM
Post
#2
|
Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
i know which gaskets op was referring to. mine are copper and reused them with no issue. as stated earlier, the people who designed the engine thought enough to include them, so i do too. mine dont leak and i sincerely doubt there is any performance to be gained by omitting them. the only only aircooled engines i have seen that run without a headgasket are english 500cc engines of the 1930's. they had a cast in spigot or "firewall" to seal them, but heads had to be lapped in like a valve. also, headbolts are supposed to be retorqued after heat cycling a few times anyway, i dont see that copper gaskets are in anyway inferior to the steel gaskets in the retorqueing area.
|
stugray |
Oct 23 2016, 10:17 PM
Post
#3
|
Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
i know which gaskets op was referring to. mine are copper and reused them with no issue. as stated earlier, the people who designed the engine thought enough to include them, so i do too. The engineers of the Galaxy Note 7 thought it a good idea to include a 3500 mAh Li-Ion battery to a 8mm thick phone too. Is that somehow evidence that they are infallible? |
Lo-Fi Version | Time is now: 23rd May 2024 - 10:00 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |