Exhaust assembly cream

[rich r]

Firegum's always worked for me - as said above, making sure the joint is fitted properly is key. It's designed to go on joints that clamp solid, not ones that are designed to flex. So the exhaust needs to be free of bending stresses at the joint so it doesn't open and close more than the paste can handle as the chassis flexes. Also ensure the joints are free from grease and soot - I usually run a bit of sandpaper round to clean the surfaces. If it's a joint that needs to flex, use the compressed wire wool type gaskets.

Silicone RTV is fine near the back section where it's not too hot, but anywhere near the cat or front and it tends to fail. On some of my cars I've had the exhaust glowing to about a metre beyond the cat after a couple of laps on track days - RTV's not meant to handle those kind of temperatures

 

[jordan1]

Thanks for all your replies chaps, all I want is a smooth creamy paste that will take the heat directly from the cylinder head adaptors, be able to clean off for cosmetic reasons, and be able to take apart easily when necessary. These are chrome siamese pipes so there are a few joints, all blowing quite bad. Been looking at this http://www.ebay.co.uk/itm/301599294155?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

 

[Wallace]

I've used this for a few years, no problems with heat on bike or car manifolds direct to heads and system joints but it's not cheap. Disassembled quite a few joints too with no problems. http://www.ebay.co.uk/itm/High-Temp...hash=item20dfb36c46:m:mIjt5JpvlwbFsNxXfZ_urNw

 

[jordan1]

I've used this for a few years, no problems with heat on bike or car manifolds direct to heads and system joints but it's not cheap. Disassembled quite a few joints too with no problems. http://www.ebay.co.uk/itm/High-Temp...hash=item20dfb36c46:m:mIjt5JpvlwbFsNxXfZ_urNw

Thanks, looks like what Im looling for, especially as dismantling is not a problem afterwards.

 

[Justme]

All the assembly paste I have ever use has always set hard.

 

[ajlelectronics]

I will have a look at it when I am in the workshop again, possibly later

 

[Farside]

I used similar to this, recently on two bikes. It's sealed fine. Got it at my local hardware / farmers' co-op.
http://www.ebay.co.uk/itm/201161328250
Otoh, a few years ago I was assembling the oil stove flue and needed a quick fix - no exhaust or stove paste was available, so just used what was to hand - a tub of tile cement. It's still working fine.

 

[jordan1]

I used similar to this, recently on two bikes. It's sealed fine. Got it at my local hardware / farmers' co-op.
http://www.ebay.co.uk/itm/201161328250
Otoh, a few years ago I was assembling the oil stove flue and needed a quick fix - no exhaust or stove paste was available, so just used what was to hand - a tub of tile cement. It's still working fine.

Most of those suggested would do the job adequately but I must be able to dismantle easily when required without any damage.

 

[Farside]

Most of those suggested would do the job adequately but I must be able to dismantle easily when required without any damage.

I somehow don't think that will be a problem.