Exhaust pipe seal

[Bonnieboy]

Best way to seal Exhaust pipe to the iron head,   Sealant??
         Bonnieboy

[Catz]

I just mounted mine in the head, bolted it up and left it unsealed.

[muskrat]

G'day Bonnieboy, 
I use Maniseal on both my A's.Now get over to Intros and give us your BSA story.
Cheers

[Worty]

Best way to seal Exhaust pipe to the iron head,   Sealant??
         Bonnieboy

Never had an issue with mine, seems like quite a snug fit in the head.  Just bang it in and bolt it up.

[sean]

dont know where you are but several places sell exh pipe expanders but measure and check often you cant make the OD smaller but you can make it bigger

[Jules]

do a search, I'm sure there has been discussions about this before and I seem to remember hi temp silicone or something similar for troublesome joints??

[TimK]

Plumbers PTFE tape wrapped around the exhaust before it's pushed into the head works well.

[bikerboy]

Normal silicone for me smother the pipe before I whack it in

[scotty]

Permatex high temp goop for me

[Greybeard]

I used exhaust sealant paste. It's black so unobtrusive.

[bikerboy]

I used exhaust sealant paste. It's black so unobtrusive.
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Thats fine but all of mine have alloy heads 

[chaterlea25]

Hi All,
If you use silicone or other sealer be careful NOT to allow any of the sealer "ball up" in front of the pipe going into the head
A lump of sealer will cause a "hot spot"
Which can and will lead to valve failure

John

[Slymo]

Bog standard silicone sealant of any colour applied to both sides and given at least 24 hours to cure before starting.