MR2 Roadster Owners Club

The Workshop => General => Topic started by: TheTigerUK on December 28, 2024, 19:28

Title: TTE exhaust.
Post by: TheTigerUK on December 28, 2024, 19:28
I have no problem with my standard exhaust but I fancy a twin exit look so I have picked up a TTE but before fitting I want to source all new gaskets and clamps, if a jobs worth doing its worth doing well :)

Which if any of these two gaskets are correct for cat to back box ? (TIA).

The one on the left from ebay and the one on the right MR2-Ben, profile and size differ a great deal.

https://www.ebay.co.uk/itm/205127611332

https://mr2-ben.co.uk/products/941

(https://i.imgur.com/LbGJivF.jpeg)

(https://i.imgur.com/OYNd8fh.jpeg)
Title: Re: TTE exhaust.
Post by: Ardent on December 28, 2024, 20:34
A side from gaskets. Did it come complete with the extra support bracket for the right hand side pipe?
Title: Re: TTE exhaust.
Post by: Alex Knight on December 28, 2024, 22:21
If you want my advice, only use the genuine OEM gasket.
Title: Re: TTE exhaust.
Post by: TheTigerUK on December 28, 2024, 22:22
Quote from: Ardent on December 28, 2024, 20:34A side from gaskets. Did it come complete with the extra support bracket for the right hand side pipe?

Yes it did.
Title: Re: TTE exhaust.
Post by: TheTigerUK on December 28, 2024, 22:22
Quote from: Alex Knight on December 28, 2024, 22:21If you want my advice, only use the genuine OEM gasket.

Thank you.
Title: Re: TTE exhaust.
Post by: Ardent on December 29, 2024, 08:27
The two metal O ring gaskets that sit between the box and the pipes has recently  been discussed here along with the V band clamps.

Title: Re: TTE exhaust.
Post by: Pete McCue on December 29, 2024, 09:06
Both of these are perfect for the job.
(https://i.postimg.cc/hvXb2vXV/20241115-155916.jpg)
Title: Re: TTE exhaust.
Post by: TheTigerUK on December 29, 2024, 12:06
Quote from: Ardent on December 29, 2024, 08:27The two metal O ring gaskets that sit between the box and the pipes has recently  been discussed here along with the V band clamps.



Have you a link ? I was thinking of making two but easier to buy :)

(https://i.imgur.com/zxKdekp.jpeg)
Title: Re: TTE exhaust.
Post by: Pete McCue on December 29, 2024, 13:25
Quote from: TheTigerUK on December 29, 2024, 12:06Have you a link ? I was thinking of making two but easier to buy :)

(https://i.imgur.com/zxKdekp.jpeg)
The parts I posted above are to replace those. Either part is fine as they are pretty much identical.
Your original ones look like they'll clean up fine though, unless they are eaten away?
Title: Re: TTE exhaust.
Post by: TheTigerUK on December 29, 2024, 15:49
Quote from: Pete McCue on December 29, 2024, 13:25The parts I posted above are to replace those. Either part is fine as they are pretty much identical.
Your original ones look like they'll clean up fine though, unless they are eaten away?

Thanks, I only have the one and I would like two new ones.

Title: Re: TTE exhaust.
Post by: TheTigerUK on December 30, 2024, 15:48
Clamps came today, great service.

Would it help preserve the clamps if given a coat of Bilt Hamber before fitting ?

(https://i.imgur.com/EVrm2eE.jpeg)
Title: Re: TTE exhaust.
Post by: Ardent on December 30, 2024, 16:25
Look like they would stand up well, but a bit if Bilt wouldn't hurt.
Title: Re: TTE exhaust.
Post by: Joesson on December 30, 2024, 16:49
In my experience any supplementary finish applied to a plated ( in this case zinc) surface will deteriorate and flake off.
I knew not why but with the aid of the www I found this:
When you apply an alkyd oil-based paint over zinc plated or galvanized surfaces, a chemical reaction occurs between the two materials. This process, known as saponification, causes a build-up between the zinc surface and the coating. Over time, this can cause the coating to release from the surface. It is possible to paint galvanized surfaces with an oil-based system, however a water-based system will need to be applied as an intermediary coat.
Rustoleum

Not forgetting that the exhaust system and fittings get hot!
Title: Re: TTE exhaust.
Post by: TheTigerUK on December 30, 2024, 17:24
Quote from: Joesson on December 30, 2024, 16:49In my experience any supplementary finish applied to a plated ( in this case zinc) surface will deteriorate and flake off.
I knew not why but with the aid of the www I found this:
When you apply an alkyd oil-based paint over zinc plated or galvanized surfaces, a chemical reaction occurs between the two materials. This process, known as saponification, causes a build-up between the zinc surface and the coating. Over time, this can cause the coating to release from the surface. It is possible to paint galvanized surfaces with an oil-based system, however a water-based system will need to be applied as an intermediary coat.

Not forgetting that the exhaust system and fittings get hot!

Interesting, thanks.

I suppose its a bit of shiny that won't be seen  :D  a dab of copper slip on the threads will have to suffice.
Title: Re: TTE exhaust.
Post by: TheTigerUK on January 2, 2025, 19:54
Autogem gaskets arrived today, offered them up and they look as thought they will do the job fine.

Sizes and shape differ a little from the original but everyone seems to think these are fine so all good :)

OEM: 65.50mm OD X 53.00mm ID X 13.40mm thick (angled sides)

AUT: 66.25mm OD X 50.50mm ID X 10.00mm thick (radius sides)

(https://i.imgur.com/YwmGehK.jpeg)
Title: Re: TTE exhaust.
Post by: Call the midlife! on January 2, 2025, 20:00
I'm lost now with this thread, I thought you were wanting the cat to silencer gasket, of which there's only one required?
Title: Re: TTE exhaust.
Post by: TheTigerUK on January 2, 2025, 20:26
Quote from: Call the midlife! on January  2, 2025, 20:00I'm lost now with this thread, I thought you were wanting the cat to silencer gasket, of which there's only one required?

I did but i'm replacing all the gaskets so thought it may be of use to others ? really sorry for the confusion :(
Title: Re: TTE exhaust.
Post by: Call the midlife! on January 2, 2025, 21:04
Nothing to apologise for, although I'm still curious why you've got 2 cat to silencer gaskets 😂
Title: Re: TTE exhaust.
Post by: Ardent on January 2, 2025, 21:54
Boy scout, be prepared.
Title: Re: TTE exhaust.
Post by: TheTigerUK on January 2, 2025, 23:19
Quote from: Call the midlife! on January  2, 2025, 21:04Nothing to apologise for, although I'm still curious why you've got 2 cat to silencer gaskets 😂

Trying to find the best one :)
Title: Re: TTE exhaust.
Post by: Pete McCue on January 3, 2025, 12:36
Re the cat to silencer gasket I would think the more tapered one would fit best. The one I got was more like the fatter one and, although it seals ok, it doesn't seem to crush enough and I would rather the two flanges sat a bit closer together.