Cork versus rubber for valve cover gaskets

Reply

  #1  
Old 10-16-11, 09:43 PM
Member
Thread Starter
Join Date: Jul 2002
Location: Staten Island, New York
Posts: 182
Cork versus rubber for valve cover gaskets

Any opinions & experience on using cork versus rubber valve cover gaskets on GM 307 cu in V8 engines? Or use neither and replace with silicone gasket maker?
 
Sponsored Links
  #2  
Old 10-17-11, 06:18 AM
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 18,497
I have a cousin who owned a few shops before he retired and he preferred cork.

Gasket maker works fine but it takes more effort.
 
  #3  
Old 10-17-11, 06:51 AM
Join Date: Jan 2007
Location: North Central Indiana
Posts: 905
GM tried using RTV on the valve covers but soon went back to gaskets. Cork gaskets bleed and rubber slides easily,guess its just personal prefference.
 
  #4  
Old 10-17-11, 12:45 PM
Member
Join Date: Feb 2010
Location: U.S.A.
Posts: 373
Back in the day, when I spent almost as much time under the hood, as I did behind the wheel. I used rubber valve cover gaskets. You could use them more then once, and it seemed like I was always adjusting my lifters. Then some one came out with screw in studs and they didn't need to be adjusted as much. Then I went with anti-pump up lifters, and stop adjusting all together.
 
  #5  
Old 10-17-11, 01:06 PM
Gunguy45's Avatar
Super Moderator
Join Date: Dec 2007
Location: USA
Posts: 20,797
Same here as what Edward said. Also found out that rubber didn't seem to work as well with stamped steel covers, OK with cast aluminum...prob do to flexing and such.
 
  #6  
Old 10-17-11, 06:08 PM
ukrbyk's Avatar
Member
Join Date: Mar 2010
Location: USA/ Pacific NW
Posts: 3,191
rubber. well, it's silicone rubber nowadays. doesn't crack. i still put a dab of RTV on mating surfaces. Allows to position gaskets better and keeps them in place. Seals micro openings.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'