Exhaust Pipe Bending

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Dobbin
Posts: 52
Joined: Wed Apr 24, 2013 7:25 am

Exhaust Pipe Bending

#1 Post by Dobbin »

Has anyone any experience in using one of those 'cheap' pipe benders to bend 42mm 1 5/8" exhaust pipe or to be precise tube? I've watched various videos on line but still not sure about it. I've tried a few of the methods, filling with sand, using a die that's a bit tight and whilst they work to an extent aren't fool proof, or at least not for this fool....laugh please it's a joke. I wish to make a new exhaust with a couple of bends but so far no joy. Any help would be appreciated. I'm going to keep trying as I'm sure I'll master it before I run out of pipe.....or the will to live.
mr rusty
Posts: 469
Joined: Tue Feb 22, 2011 10:17 am
Location: Harlow, the birthplace of fibreoptic communication, as the town sign says.

Re: Exhaust Pipe Bending

#2 Post by mr rusty »

Bending exhausts to shape is probably a lot more skilled than it looks- to be honesti reckon your best option is to buy the bends off the shelf or cut them from used pipes of the right diameter and weld them in- exhausts tend to get junked because a box has gone but the actual pipes are often pretty good.
1968 Triumph Vitesse Mk1 2 litre convertible, Junior Miss rusty has a 1989 998cc Mk2 Metro, Mrs Rusty has a modern common rail diesel thing.
jimmyybob
Posts: 352
Joined: Wed Jan 05, 2011 8:59 pm

Re: Exhaust Pipe Bending

#3 Post by jimmyybob »

WHS^^ without a proper mandrel your wasting your time, buy the bends and weld it all up.
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Minxy
Posts: 547
Joined: Fri Jan 07, 2011 9:29 pm
Location: West Northamptonshire

Re: Exhaust Pipe Bending

#4 Post by Minxy »

Yes agree with above.

Exhausts can often be tweeted a little, hangers moved etc but for a system get some pipes and bends and build your own. I used to do this regularly when I worked in Motorsport and specialist tuning although we were slightly spoiled in that Jetex were local to us and had shelves full of various sizes of pipe's, bends, silencers, catalyst's, hangers etc etc that we could choose from. I'm sure if you could locate a nearby supplier there is nothing you could not achieve.
Never play chess with a pigeon. It will knock all the pieces over, S*#t on the board and then strut around pretending it won.
89rallye
Posts: 110
Joined: Mon Oct 07, 2013 8:19 pm
Location: Widnes, Cheshire

Re: Exhaust Pipe Bending

#5 Post by 89rallye »

I've had some good success's in the past with a simple hydraulic bender, I worked out my own little system where I could replicate bends how I wanted them over and over.

I've built a few cages (for show use only before anyone says it :) ). I was young then and realise now that the cage would probably do more harm than good!

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And I bent four lengths of 2x2 box tubing and had to get them spot on.

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So it is possible,

However..... All that said for an exhaust I have to agree with the above comments. The time and effort it would take it would be quicker to just use pre fabricated/used bends.
Mark.
zipgun
Posts: 856
Joined: Thu Apr 07, 2011 10:50 pm
Location: Crowborough

Re: Exhaust Pipe Bending

#6 Post by zipgun »

I spy a Caddy !! I had a MK1 Caddy Sport. :thumbs: Then we had a baby and 2 seats wasn't any good, so we sold it . Its on youtube ,afraid it's been got at :( :( no longer a Sport in my eyes http://www.youtube.com/watch?v=XqijnM0vO-I
What it did look like..Image

Bending tube is a pain without a mandrel.
89rallye
Posts: 110
Joined: Mon Oct 07, 2013 8:19 pm
Location: Widnes, Cheshire

Re: Exhaust Pipe Bending

#7 Post by 89rallye »

Yeah that's no caddy sport anymore, such a shame. :(

I used mine for two years while I renovated my house then started to restore it but my dads work mate son was desperate for one as he'd just passed his test so I sold it to him. Which was a mistake as it's still sat untouched and unloved in a lockup.
Mark.
sierra3dr
Posts: 453
Joined: Fri Feb 11, 2011 10:20 am

Re: Exhaust Pipe Bending

#8 Post by sierra3dr »

Dobbin wrote:Has anyone any experience in using one of those 'cheap' pipe benders to bend 42mm 1 5/8" exhaust pipe or to be precise tube?
You mean one of these?
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It's not really a pipe bender,more of a bar bender,as they kink the pipe
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Bending pipe with these is best
Image
Dobbin
Posts: 52
Joined: Wed Apr 24, 2013 7:25 am

Re: Exhaust Pipe Bending

#9 Post by Dobbin »

No not one of those. One of these
Admin edit: removed random data
Dobbin
Posts: 52
Joined: Wed Apr 24, 2013 7:25 am

Re: Exhaust Pipe Bending

#10 Post by Dobbin »

Well that didn't work as I intended.........

The one I have is a 12T hydraulic pipe bender
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