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-   -   Exhaust leak ? (https://www.offshoreonly.com/forums/general-q/285967-exhaust-leak.html)

PARADOX 10-05-2012 04:36 PM

Exhaust leak ?
 
Engine is all back together. Runs and sounds ok. Exhaust leak at No,8 and no, 7. I can hear it and feel air. Heads been just redone, machined etc. CMI headers may be out of flatness tollerance.
Best way to fix?. Sealeant? and if I use sealeant what to use? or double gasket?
Any ideas?
Thx
P

Unlimited jd 10-05-2012 05:09 PM

A thin layer of high temp copper rtv and good gaskets like mr gasket ultra seal's

PARADOX 10-05-2012 05:42 PM

I got the Merc gaskets. I willl try to use some copper RTV, but wondering is there anything better out there?
Thx
P

Tinkerer 10-05-2012 06:17 PM

Use the Mr Gasket ultra seal. They are SO good I reuse mine. The grafite gaskets don't tear and seal great.

PARADOX 10-05-2012 07:51 PM


Originally Posted by Tinkerer (Post 3790949)
Use the Mr Gasket ultra seal. They are SO good I reuse mine. The grafite gaskets don't tear and seal great.

Where do I get them?
Thx
P

Tinkerer 10-05-2012 09:13 PM

couldn't tell ya - I havn't bought a set in years - I reuse mine. But my engines havn't been out of the boat in a long time.

Griff 10-06-2012 01:59 AM

Summit Racing or Jegs should have them.

CPPerformance 10-08-2012 09:24 AM

Either of these are super quality gaskets

MLS multilayer Merc racing choice

http://www.cpperformance.com/p-11895...d-gaskets.aspx

Copper style

http://www.cpperformance.com/p-11790...ound-port.aspx

Graphite style

http://www.cpperformance.com/p-11727...502-chevy.aspx


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