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exhaust expanders - any good?
loggyboy - 11/8/13 at 04:08 PM

Anyone used these to either expand/link pipes of similar dia or straighten pipes with any success?
Http://www.ebay.co.uk/sch/Garage-Equipment-Tools-/30896/i.html?_from=R40&_nkw=exhaust+expander&_sop=15

[Edited on 11-8-13 by loggyboy]

britishtrident - 11/8/13 at 04:28 PM

quote:
Originally posted by loggyboy
Anyone used these to either expand/link pipes of similar dia or straighten pipes with any success?
www.ebay.co.uk/sch/Garage-Equipment-Tools-/30896/i.html?_from=R40&_nkw=exhaust+expander&_sop=15


They are really just intended for repairing damaged ends of new pipes before fitting, and for that they are a very good tool to have, if you put an impact gun on the end they will expand a solid pipe a bit but they won't expand it enough to fit a 50mm od pipe over another 50mm od.

rdodger - 11/8/13 at 05:18 PM

I have used a couple and did manage to get it to go far enough to slide over another pipe (2.25 stainless). The first one I got the thread stripped, the second is much better. Takes quite a while though.

theprisioner - 11/8/13 at 07:06 PM

What happens if you heat it while expanding any thoughts?

britishtrident - 11/8/13 at 08:17 PM

You would need to use oxy-acetelene to apply local heat.

It would be a lot easier to use joiner sleeves used for fitting new sections to OEM exhausts or just use the next size up pipe size.

mark chandler - 11/8/13 at 08:50 PM

No, not any good.

If you want to tweak a bit of tube then they work, expand to create a sleeve for the same size tube then expect to fail.

Neville Jones - 14/8/13 at 12:03 PM

I've got a yank sourced set that I've been using for twenty years and more. Much bigger centre bolt than those on ebay, and it has never failed me. Has a proper acme thread. Tube needs to be fully annealed to help the process.