SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: 77Galaxie on April 15, 2016, 05:18:53 PM

Title: Exhaust to snail seal...
Post by: 77Galaxie on April 15, 2016, 05:18:53 PM
I've got a pair of water jacketed exhaust for my boat and I've been having a hell of a time getting a good seal between the exhaust and the snail. Any ideas on what kind of gasket I can use. I forget what I am using not but clearly it sucks cause it's leaking now. Ideas? Resurface the faces?

Thanks!


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Title: Re: Exhaust to snail seal...
Post by: vwagon13 on April 15, 2016, 05:37:28 PM
When I was using risers and Hardin logs on my Oldsmobile I made my own with a small ball peen hammer and extra thick gasket material from local auto parts store. But I eventually had to have both surfaces on both logs and risers resurfaced. Best of luck
Title: Re: Exhaust to snail seal...
Post by: SomeThingWilder on April 15, 2016, 06:07:02 PM
Yup probably needs to be pull apart and surfaces cleaned had same problem on mine bought new gaskets from Hardin and scraped the old sily cone off and was good to go
Title: Re: Exhaust to snail seal...
Post by: jim brock on April 15, 2016, 06:11:05 PM
I have my own gaskets made. a better gasket material is used , not the blue green color one, you buy from cp etc. my gaskets are $8.00 each or 2 for $15.00  1818-890-1867  Jim
Title: Re: Exhaust to snail seal...
Post by: 77Galaxie on April 15, 2016, 06:38:50 PM
Thanks for all the input!


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Title: Re: Exhaust to snail seal...
Post by: ron.h on April 16, 2016, 03:50:53 AM
Got on eBay and found mr. Gasket header gaskets work really well
Title: Re: Exhaust to snail seal...
Post by: 77Galaxie on April 20, 2016, 11:25:47 AM
I took all bolts out of the exhaust to put new ones in and got the surfaces refaced. I'm looking for a quality gasket that can withstand the heat from exhaust and water from the header. Specifics would be appreciated!


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Title: Re: Exhaust to snail seal...
Post by: mash on it on April 20, 2016, 12:16:29 PM
I took all bolts out of the exhaust to put new ones in and got the surfaces refaced. I'm looking for a quality gasket that can withstand the heat from exhaust and water from the header. Specifics would be appreciated!


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Log manifold to the head? RTV orange or ultra black...that's my choice. Thin coat, let it set-up some, bolt it on.
Log manifold to snails? There is a gasket specifically for that, and RTV ultra black.

For over transom headers? Mr. Gasket BBC Header Gaskets...@ O'Reilly's, off-the-shelf.

Dan'l
Title: Re: Exhaust to snail seal...
Post by: Your Mom on April 20, 2016, 05:54:48 PM
I met this guy at the big 3 a month+ back... hes the only one I've seen make the xtra thick gasket. His # 909-717-8637 Daves Gaskets. Use ultra black on both sides an on/around studs. I use painters tape wrapped around log/snail shoulder during install an wipe the silicone up an pull tape for a nice clean application. The one on the left is the typical gasket you will see an the tend to crack at studs.
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fme%2F1gs1_zpsshtpz2q3.jpg&hash=d6f7ded0d60f44bee95cf70632f09d1e6c1d299f)
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