Morris Minor Owners Club

Does anyone know how to identify stainless steel?

I think the exhaust on my car may be stainless - but only because it's not rusted and still has a silvery appearance. It's made by Walker.

(I'd read that magnets won't stick to stainless but a test on kitchen cutlery proved that not to be the case!)

Also, can a stainless exhaust be welded? (I noticed there seems to be tiny blow from seam.)

Try the magnet, stainless can have different compositions in its make up.

The problem that you have is that most stainless exhausts are made of 304 stainless which is easily magnetised. It is usual to tig weld a stainless exhaust, I use a grade 309 filler rod, the main problem is cleaning prior to welding.

Warranty?

How small and where? Can be a fix - or a warning of greater imminent failure.

An easy (temporary?) fix for a pin hole might be a jubilee clip with exhaust putty. I’ve fixed larger holes, before now, with a metal patch clamped on with a jubilee clip or two.

I have successfully welded stainless tube with a MIG using stainless wire and I am a very novice welder.

Thanks guys

It looks to be a very small leak in the joint where the pipe enters the silencer - there's no noise but I happened to notice a few millimetres of black discolouration where it's been blowing, when I was greasing my trunions.

The exhaust has been on the car for some 25 years, so I can't complain!

It would be an easy weld but I don't have Tig (or Mig!) yet so I might look out for another silencer as a standby.

Liquid metal putty would fix it