Car exhaust joints leaking

[PhillipM]

Have fun doing it all again

 

[Myles1970]

....you could try a baked-bean tin tied around the joint and stuffed with a slather of gun-gum

 

[Onoff]

I use this to find leaks:

Flomasta Gas Leak Detector Spray 250ml - Screwfix

Order online at Screwfix.com. Non-aerosol leak detection spray for use on all pressurised pipework for the easy detection of potentially dangerous leaks. Highlights the smallest leaks in gas, air and nitrogen transport systems by the formation of a micro-porous foam. Supplied complete with...

www.screwfix.com

& this to fix them:

300g Exhaust Assembly Paste | SCS200 | Sealey

For ease of assembly and creates gastight exhaust joints. Suitable for use with Model No. AK3901 Caulking Gun.

www.sealey.co.uk

Didn't help on the loaner MK4 Golf GTI I was borrowing for a bit. Aftermarket exhaust was 1" short at two joints. Pig!

 

[PhillipM]

That sealey crap is just sodium silicate, you can buy 5 litres of it for that.

It's the same problem as the old exhaust pastes, it's rigid so it just cracks out eventually.

 

[stuvy]

I use this to find leaks:

Flomasta Gas Leak Detector Spray 250ml - Screwfix

Order online at Screwfix.com. Non-aerosol leak detection spray for use on all pressurised pipework for the easy detection of potentially dangerous leaks. Highlights the smallest leaks in gas, air and nitrogen transport systems by the formation of a micro-porous foam. Supplied complete with...

www.screwfix.com

& this to fix them:

300g Exhaust Assembly Paste | SCS200 | Sealey

For ease of assembly and creates gastight exhaust joints. Suitable for use with Model No. AK3901 Caulking Gun.

www.sealey.co.uk

Didn't help on the loaner MK4 Golf GTI I was borrowing for a bit. Aftermarket exhaust was 1" short at two joints. Pig!

Don’t breathe that stuff in it’s horrible

 

[Onthespotwelding]

Go on weld those joints up

 

[Mikey D]

The thought had crossed my mind , probably that aluminised steel or whatever it's made from I'd probably blows big hole in it knowing my luck !

 

[Onoff]

That sealey crap is just sodium silicate, you can buy 5 litres of it for that.

It's the same problem as the old exhaust pastes, it's rigid so it just cracks out eventually.

I don't pay that for it, just a random link.

 

[Moose McAlpine]

Go on weld those joints up

I was about to say, we're on a welding forum just zap the thing together!

 

[Mikey D]

Well I started the car when I got home and the middle joint the one I did with pu sealent was fine but the front joint that was fine previously was blowing a bit .....
So anyway yea middle and back box off(again ) , some 'forever white ' silicone applied and bolted back up ,
I'll give it 24 hours to set . Pray for me guys

 

[My Old Landy]

Well I started the car when I got home and the middle joint the one I did with pu sealent was fine but the front joint that was fine previously was blowing a bit .....
So anyway yea middle and back box off(again ) , some 'forever white ' silicone applied and bolted back up ,
I'll give it 24 hours to set . Pray for me guys

I am doing mine tomorrow, here's hoping we both have success

 

[Mikey D]

Indeed ,good luck with yours

 

[Mikey D]

Well the silicone worked , no leaks and mot passed today .

 

[My Old Landy]

Well the silicone worked , no leaks and mot passed today .

Excellent news
I did find the leak in mine, see if you can spot it......

 

[Mikey D]

Yea bit crispy what's left of it .