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-   -   CMI headers and Sealant (https://www.offshoreonly.com/forums/general-q/362149-cmi-headers-sealant.html)

Kryptonite 07-31-2019 06:17 PM

CMI headers and Sealant
 
Is it a no no to use sealant on the flange between header and tailpipe?? If its acceptable, RTV Red??
Thanks... new to the forum but have been stalking for a while!!!

14 apache 07-31-2019 06:25 PM

You can try to let it set before running. That's the only thing stellings uses.

F-2 Speedy 07-31-2019 06:40 PM

rope seal or compression thin gasket ??

Kryptonite 07-31-2019 07:02 PM

Compression Thin gasket. V-clamp and T Bolt

F-2 Speedy 07-31-2019 07:04 PM

Ive never used it on the v clamp

Kryptonite 07-31-2019 07:09 PM

Re-assembing and 1 flange marries up perfect and 1 is a little off. T bolt was a bit rusty on that side so Im assuming it leaked alittle. Prior owner definitely used something on it from the looks of the gasket. Whats lesser of 2 evils, doubling gasket or Hi Temp red??

F-2 Speedy 07-31-2019 07:16 PM

the tails have to be aligned perfectly inorder not to have a leak......Id use sealant and not 2 gaskests

Kryptonite 07-31-2019 07:27 PM

Thanks Speedy

14 apache 07-31-2019 08:01 PM

One thing might be going on if this is twin engine they could have two pipes or two headers switched.

Kryptonite 07-31-2019 08:05 PM


Originally Posted by Kryptonite (Post 4699704)
Is it a no no to use sealant on the flange between header and tailpipe?? If its acceptable, RTV Red??
Thanks... new to the forum but have been stalking for a while!!!


Originally Posted by 14 apache (Post 4699724)
One thing might be going on if this is twin engine they could have two pipes or two headers switched.

single.

TomZ 08-01-2019 07:41 AM


Originally Posted by F-2 Speedy (Post 4699712)
Ive never used it on the v clamp

x2

I make sure the flanges are nice and clean. So far so good. Using a sealant makes them a mother to get cleaned.

Also, loosen up your clamps/break the hoses free at the tips so that it's easier to adjust the alignment of the surfaces. the v-clamp will align the pipe and the gasket for you.


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