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-   -   exhaust rubber gasket at transom (https://www.offshoreonly.com/forums/general-boating-discussion/380567-exhaust-rubber-gasket-transom.html)

tomcei 09-13-2023 04:43 PM

exhaust rubber gasket at transom
 
I'm looking for some options. I have dry exhaust and I'm installing trim rings around them on the transom. Is there a preferred rubber that seals the pipe with the trim ring? I was thinking a heavy duty tractor innertube material. thoughts?
thx,
Tom

Wildman_grafix 09-13-2023 04:51 PM


Originally Posted by tomcei (Post 4879760)
I'm looking for some options. I have dry exhaust and I'm installing trim rings around them on the transom. Is there a preferred rubber that seals the pipe with the trim ring? I was thinking a heavy duty tractor innertube material. thoughts?
thx,
Tom

We used something like this, SS trim ring with a rubber seal. I still put just a very light bead of life seal on it.

https://www.cpperformance.com/p-1370...x-4-12-id.aspx

F-2 Speedy 09-13-2023 04:57 PM

What size 4 inch 4.5 ? I might have some new ones

tomcei 09-13-2023 05:54 PM

Thanks Guys. I'm struggling a bit. I have my pipes coming out of the upper transom at about a 40 degree slant. ( Activator) I'm working with Stainless Marine on the trim rings and they don't have anymore gasket material. And i got the last of the trim rings as well. Letty said it was some crazy 1/4 inch stuff which i can't get my head around. Anyway just received my trim rings and one is a different size so I'll be going back and forth on that deal till i get what i need. Anyway what are your thoughts on the innertube idea? Im going to go down the street to the tire shop and ask them what the thickest tube they have and buy one. I'll cut it up and use that.

tomcei 09-13-2023 05:57 PM

4.5"
 
https://cimg6.ibsrv.net/gimg/www.off...acf80918d7.jpg
https://cimg1.ibsrv.net/gimg/www.off...06a6ac2433.jpg

ICDEDPPL 09-13-2023 06:00 PM

I buy that stuff from Mc Master .
If you`re dry exhaust that intertube material will burn up pretty quick.

I did all the homework for you since ive spent a buncch of $$ seeing what material and thinckness is best.
8525T43
is the part number I like.
I cut em to fit

https://www.mcmaster.com/catalog/129/3946/8525T43



tomcei 09-13-2023 06:00 PM

I would like to find some high temp silicone type stuff. Might be cool riding around feeling like i just laid some rubber..lol

tomcei 09-13-2023 06:04 PM


Originally Posted by ICDEDPPL (Post 4879767)
I buy that stuff from Mc Master .
If you`re dry exhaust that intertube material will burn up pretty quick.

I did all the homework for you since ive spent a buncch of $$ seeing what material and thinckness is best.
8525T43
is the part number I like.
I cut em to fit

https://www.mcmaster.com/catalog/129/3946/8525T43

Sweet! I scope that out. Thanks. Ive seen your bling bling and i approve.

F-2 Speedy 09-13-2023 06:06 PM

Cool hot rod we need more pics, the stuff I have wont work

tomcei 09-13-2023 06:18 PM

I will start a thread in the Activator forum eventually 4yr project. This one kicked my arse
https://cimg0.ibsrv.net/gimg/www.off...33a8b7a6cd.jpg
https://cimg1.ibsrv.net/gimg/www.off...d7ce572276.jpg
https://cimg3.ibsrv.net/gimg/www.off...5788ea9054.jpg

tomcei 09-13-2023 06:32 PM

I think I will get the red silicon Icdedppl. It will match my push buttons
https://cimg8.ibsrv.net/gimg/www.off...ed3a0c7151.jpg

ICDEDPPL 09-13-2023 06:40 PM

Sweet ride and tunnel ram , my man !:ernaehrung004::D
Ive tried black but it doesnt hold up to the heat .
pics per request.



https://cimg9.ibsrv.net/gimg/www.off...300d13a3c1.jpg



https://cimg1.ibsrv.net/gimg/www.off...0978d85371.jpg

tomcei 09-13-2023 07:02 PM


Originally Posted by ICDEDPPL (Post 4879776)
Sweet ride and tunnel ram , my man !:ernaehrung004::D
Ive tried black but it doesnt hold up to the heat .
pics per request.



https://cimg9.ibsrv.net/gimg/www.off...300d13a3c1.jpg



https://cimg1.ibsrv.net/gimg/www.off...0978d85371.jpg

We will see. I just ordered them and they will be here fri. Now i just need to bend the trim rings in my press so they lip over the transom...fun times..

Wildman_grafix 09-13-2023 07:16 PM

Sweat Ride, like dead people said no on the inner tube. I would assume your pipes are dry but water in them? We normally have a small hole at the bottom ends just to bleed a little out so they don't get extremely hot.

On bending the trim rings, I had to shear mine to clear the swim, could you do that on the bottom side?

EDIT: Never mind took a closer look at the picture, wow you are right at the bend.

RSCHAP1 09-14-2023 09:02 AM

Looks VERY nice
Congrats !!

tomcei 10-02-2023 05:47 AM

Update
 
Thanks for the info dead plps.
https://cimg1.ibsrv.net/gimg/www.off...d3fd432ed3.jpg
https://cimg2.ibsrv.net/gimg/www.off...4fc2b70af6.jpg
https://cimg3.ibsrv.net/gimg/www.off...d3fbaf1b5a.jpg

ICDEDPPL 10-02-2023 12:38 PM

Perfect .

xlint89 04-19-2026 06:18 PM

What's the trick for installing the gasket material?

I installed the ones I bought from Teague with the rings as they came. Used Dawn dish soap to help them slide on.

1 week later, and they're split in 2 or 3 different spots.

4" OD exhaust pipes.

5" Trim rings.

These exhaust gaskets. https://teaguecustommarine.com/trans...ust-seal-black


https://cimg9.ibsrv.net/gimg/www.off...d0f7294f25.jpg
https://cimg0.ibsrv.net/gimg/www.off...6c9f411a66.jpg
https://cimg1.ibsrv.net/gimg/www.off...2aad04bdd5.jpg

xlint89 04-21-2026 05:46 PM

Heard back from Teague. They are sending me new gaskets/transom seals. Said they should not have cracked and there should be no need to trim them. Just install them as is.

Got to say, Teague is very responsive when I have reached out to them. So far it's always been the next business day.

Wildman_grafix 04-22-2026 07:35 AM


Originally Posted by xlint89 (Post 4946281)
Heard back from Teague. They are sending me new gaskets/transom seals. Said they should not have cracked and there should be no need to trim them. Just install them as is.

Got to say, Teague is very responsive when I have reached out to them. So far it's always been the next business day.

Good to hear I'll be putting some on in a couple weeks.

thisistank 04-22-2026 02:30 PM

MAN!! That is a cool boat!!! Clean AF!! Great lines.

dykstra 04-22-2026 02:40 PM


Originally Posted by thisistank (Post 4946309)
MAN!! That is a cool boat!!! Clean AF!! Great lines.

Agreed!!

xlint89 04-22-2026 04:45 PM

Already got the new ones from Teague. These ones feel a lot more pliable than the other set of seals.

And yes, I agree, that boat is clean AF.

TxHawk 04-23-2026 09:45 AM

Sweet activator! I can relate. I have 4.5" pipes but the mold wouldn't fit the 4.5" rings with the larger OD. Had to have custom rings made. I cut the 4" gaskets out but missed it. Will have to try the red stuff posted above.
https://cimg6.ibsrv.net/gimg/www.off...45803b8229.jpg


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