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How to bend exhaust tubing?

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shameless dude View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote shameless dude Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2017 at 1:33am
you can buy a tubing bender at HF....the dies are not sized for exhaust tubing, but close enough, that if you fill the tubes you have with sand, they will bend just right in that bender. they aren't expensive.
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Tbone95 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tbone95 Quote  Post ReplyReply Direct Link To This Post Posted: 19 Aug 2021 at 12:07pm
You just don't go away, do you?!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 19 Aug 2021 at 3:55pm
whats the matter Tbone... You dont think RENTING tools from England sounds like a good idea ?   Shipping and Lead Time might be a problem !! Wink
Like them all, but love the "B"s.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 19 Aug 2021 at 7:18pm
Originally posted by Kimberlibre Kimberlibre wrote:

If you don't have any of the tools with you, I might suggest renting this and getting everything done. It's cheaper than renting it to a repair shop and having someone do it for you.
I would suggest you use a pipe bender to bend the exhaust pipe, but be careful.
You can use lakeside-hire.co.uk if necessary.
It's not the first time I've rented tools there, and it always really helps me out.
If anyone has their own secrets on how to bend a pipe without using additional equipment?

I reported him, AGAIN!

As far as the OP goes, fill pipe with sand, heat and bend at will. The reason exhaust benders don't work so well is the small size of the pipe.  Another thought is that the tractor don't have the power to push it up...Wink
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Arcs and Sparks Quote  Post ReplyReply Direct Link To This Post Posted: 19 Aug 2021 at 8:33pm
Whenever you attempt to hand bend any type of thin wall tubing using heat, if you leave it hollow you will fail every time.  If you cap the end and pack it with sandblasting sand then cap the other end ensuring the tube is completely packed , once you apply heat the heat will distribute more evenly around the tube and not hole through.   Because it has no way to kink the tube will stretch but only at a shallow curve.  The other people are right.  Purchase a mandrel bent 90 and weld up your profile.  Industrial cities will have a mandrel tube bending shop somewhere and they can program the computer to bend almost any profile---just not cheap.  I've seen them bend us up crazy complex tubes for our refrigeration system at work.  That mandrel bender is an amazing machine.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tbone95 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Aug 2021 at 7:29am
Originally posted by DiyDave DiyDave wrote:

Originally posted by Kimberlibre Kimberlibre wrote:

If you don't have any of the tools with you, I might suggest renting this and getting everything done. It's cheaper than renting it to a repair shop and having someone do it for you.
I would suggest you use a pipe bender to bend the exhaust pipe, but be careful.
You can use lakeside-hire.co.uk if necessary.
It's not the first time I've rented tools there, and it always really helps me out.
If anyone has their own secrets on how to bend a pipe without using additional equipment?

I reported him, AGAIN!

As far as the OP goes, fill pipe with sand, heat and bend at will. The reason exhaust benders don't work so well is the small size of the pipe.  Another thought is that the tractor don't have the power to push it up...Wink
Well, since it was over 4 years ago, I'm thinkin' he figured something out by now.
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CrestonM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CrestonM Quote  Post ReplyReply Direct Link To This Post Posted: 20 Aug 2021 at 8:42am
Yessir, I ended up filling it with sand, then bending and it worked fairly well for a first-time try.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 20 Aug 2021 at 9:53am
Why didn't you just get the vertical muffler for the Frog in the first place? Those Stanley mufflers won't last that long anyway. I've also seen those that add a flex pipe to the underslung pipe and bring it up to the rear of the fender for a vertical discharge. Who cares how crappy it looks, it's a FrogBig smile
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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CrestonM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CrestonM Quote  Post ReplyReply Direct Link To This Post Posted: 20 Aug 2021 at 11:39am
Adding a vertical extension to the outlet would’ve defeated the purpose of getting the undershot exhaust pipe up and out of the wheat straw.

I was using the old muffler to make the vertical one. It wasn’t that good, and I only used it that one year. I had just restored the tractor so I had a new muffler to use the rest of the year.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ed (Ont) Quote  Post ReplyReply Direct Link To This Post Posted: 20 Aug 2021 at 7:10pm
Get the proper setup for it.  Cheap and easy and then you have both complete setups to use as you wish. We got one for our MF35 almost as soon as we got it home. Got so tired of exhaust in your face every time you were back there. Never used underslung again! 
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