Hi Just a query about sealing the exhaust pipe into the cylinder.My WM has quite a leak and the down pipe is not that old.
Cheers
John

email (option): jsaft1951@xtra.co.nz

An exhaust firm or especially a tube bending specialist can can usually expand the pipe. But a smear of exhaust assembly paste as used by most exhaust fit places can work wonders.
https://www.ebay.co.uk/itm/Holts-Fire-Gum-Gun-Exhaust-Silencer-Pipe-Assembly-Joints-Seals-Paste-Putty-150g/372679786099?epid=18023963611&hash=item56c5723e73:g:tmYAAOSwVWxc7ly3

Ron

email (option): ronpier@talk21.com

I took a can of cat food and a strong pair of scissors and made a strip off about 1" wide.
Wrapped it 2 x round the exhaust pipe. Works well for many years now.
I can even take it apart and put it back on again.

As with Ron , I got mine expanded.
Got them to make the pipe a little bigger than the port then ran the engine for a few minutes to get the outlet hot & expanded then tapped the pipe in.
It had never moved a mm in near 20 years save the one time I took it off to get the new sleeve fitted and last year to swap the engines.

email (option): bsansw1@tpg.com.au