Araldite leak in exhaust silencer

[NickCLotus]

Might sound like a silly question but has anyone tried glueing up a hole in a sliencer with 2-pack epoxy?

This is a very small leak in the rear silencer bottom lip, there is a small hole which I assume is for letting any condensated water out that appears to have been blocked and caused quite a build-up of water inside the silencer. The leak is on the seam just below this.

Checking the Grilla glue packet it is good up to 85deg, I presume a rear silencer would be unlikely to reach this temperature.

[PositronicRay]

Why not use gum gum?

[NickCLotus]

PositronicRay said:

Why not use gum gum?

Primarily because I thought araldite might be more runny and soak into the lip better, also suggest it might bond better.

[Gary C]

Try Belzona 1511

Or maybe not, just seen the price.

Thats what happens when you just book it out of stores at work !

Edited by Gary C on Tuesday 13th February 22:31

[hidetheelephants]

Gary C said:

Try Belzona 1511

Or maybe not, just seen the price.

Thats what happens when you just book it out of stores at work !

The chief got a bit of sticker shock the other day when replenishing the big box of Wencon stuff. It works really well but they charge like a wounded rhino.

[Skyrocket21]

J-B Weld 37901 or maybe the high heat stuff, 85c nope! more like 200c to 300c depending, I nearly caused a fire painting a rear silencer with engine enamel paint, rated at 150c plus, was smoking and burning on a Honda Civic.

[gazza285]

Gary C said:

Try Belzona 1511

Or maybe not, just seen the price.

Thats what happens when you just book it out of stores at work !

Cheaper to buy a new exhaust.

[TGCOTF-dewey]

Gary C said:

Try Belzona 1511

Or maybe not, just seen the price.

Thats what happens when you just book it out of stores at work !

Edited by Gary C on Tuesday 13th February 22:31

So that's the solution to keyway root cracking then

[E-bmw]

NickCLotus said:

Might sound like a silly question but has anyone tried glueing up a hole in a sliencer with 2-pack epoxy?

I am sure some might but it is not the right thing for the job.

NickCLotus said:

This is a very small leak in the rear silencer bottom lip, there is a small hole which I assume is for letting any condensated water out that appears to have been blocked and caused quite a build-up of water inside the silencer. The leak is on the seam just below this.

Best thing for that would be Gun Gum or similar, designed for exactly that job. Either that or get a welder on it.

NickCLotus said:

Checking the Grilla glue packet it is good up to 85deg, I presume a rear silencer would be unlikely to reach this temperature.

A rear box will be well over that after a long run, try touching it after an hours drive, don't forget the gas running right through the exhaust can easily get over 300c at the engine & if well contained & running for a while may still be over 150c at the end of the pipe.

[Belle427]

The paste that comes in a silicone sealant type cartridge is a little easier to apply.

[Gary C]

TGCOTF-dewey said:

Gary C said:

Try Belzona 1511

Or maybe not, just seen the price.

Thats what happens when you just book it out of stores at work !

Edited by Gary C on Tuesday 13th February 22:31

So that's the solution to keyway root cracking then

Yay, good idea !

[dhutch]

I have had reasonable success with bathroom silicon, bean can, jubilee clips. But that was the middle of a pipe (weld failed) not a seam.

[NickCLotus]

Oh well, will have to wait until it burns off if it doesn't work as done now. Cleaned-up the seam and couldn't see any significant rot from the outside, if fact couldn't even see any gap but there must have been one as it was blowing a small amount of gas. Warm epoxy dribbled down nicely into the seam.

Edited by NickCLotus on Wednesday 14th February 13:48

[dhutch]

Sounds good to me, let us know how it does!

[PositronicRay]

Run it for a bit, the heat helps it go off.

[NickCLotus]

PositronicRay said:

Run it for a bit, the heat helps it go off.

True but if it hasn't set fully the air pressure can make it blow off!

Edited by NickCLotus on Wednesday 14th February 18:08

[kestral]

PositronicRay said:

Why not use gum gum?

GuN gum is better.

[richhead]

PositronicRay said:

Run it for a bit, the heat helps it go off.

dont do this, heat doesnt help with araldite, makes it stay runny