Pipe (exhaust) expander needed

Discussion in 'Alaska' started by Alaskajeff, Sep 19, 2012.

  1. Alaskajeff

    Alaskajeff Long timer

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    Does anyone in the valley area have one? I got a new exhaust for my XR but the inlet pipe on the silencer is the exact same diameter as my header outlet pipe:eek1 SO I need to stretch/expand one of them so they will fit together. LMK Thanks
    [​IMG]
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  2. AKmud

    AKmud Muddy Gruver

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    I had that done one time at a muffler shop, was pretty cheap and only took a minute.
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  3. Alaskajeff

    Alaskajeff Long timer

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    Thats what I will probably end up doing. Just figured I'd throw it out there. Someone told me about a Harbor Freight hand held one they had and it worked pretty good.
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  4. Beezer

    Beezer Long timer

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  5. Salsa

    Salsa Been here awhile

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    I could not expand an exhaust pipe even when I heated it up with the torch on the Harbor Freight one I got.

    Don
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  6. MMNORTH

    MMNORTH Got GUZZI

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  7. Alaskahack

    Alaskahack Adventurer

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    I would use a saw and cut some slits on the inlet pipe of silencer, and push it in to the header. If you expand the silencer end you may find you have some exhaust leakage

    The header pipe might be expanded because of the chrome plating anaig check with a mufler shop you have on in Palmer

    Just my thoughts

    B
    #7
  8. Tom S

    Tom S Can I ride it?

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    That just ain’t gonna work with the pipes being the same size.
    As for the reducer/adaptor things they can be found at local auto parts stores in various sizes. Maybe one small enough to work. But they are just plain steel, not stainless.
    I used a sleeve & hose clamps to adapt a Supertrap to a same diameter header. Worked fine, no leaks. It was all painted black in the first place & I put the clamp screw behind the pipe so it didn’t look bad at all.

    Jeff, what is the inside & outside diameter of the pipes? I may (or not!) have a piece of stainless pipe ithat would work for a sleeve.
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  9. Alaskahack

    Alaskahack Adventurer

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    I'm sorry I said anything.


    I recently dismantaled my exhaust system on my 2009 1200 GS and the part that connected to the exhaust manifold appeared to be the same size. The pipe going to the muffler was split to slid into the exhaust header with about a 2" wide clamp to hold both pipes together.

    The tomato can with a couple of hose clamps I didn't realize was still being utilized for exhaust repair. :lol3
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  10. Tom S

    Tom S Can I ride it?

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    Well, no shit?! I'm shocked! :lol3 :rofl
    That’s a different situation. Appeared to be the same size? You better look again. Different diameter where the split is. That’s pretty much standard on most exhaust systems.
    Take an old piece of car exhaust pipe or something similar & cut it in two & try your method. Then come back & tell us how that worked out. :deal

    I ain’t new to this stuff by any means. :gerg Been there, done that.
    Tomato can? No tomato cans here. Tomato cans ain’t stainless pipe.
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  11. Alaskahack

    Alaskahack Adventurer

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    I bow to your wisdom

    It did appear to be the same size. As I had to compress the split pipe to fit back into the manifold.

    The part that MMNORTH suggested seem like it would do a better job, since it would cover ID of one pipe (manifold ?) to the OD of the (muffler ?) pipe.

    And unless you have the type of part like, mgcycle is displaying, I can't see the difference
    #11
  12. Tom S

    Tom S Can I ride it?

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    :thumb Aww, nuts. I really wanted you to try fitting those same size pipes together. :lol3
    I probably tried that years ago & even with slightly different size pipes it doesn’t work. In fact I have probably tried a great deal of the cheap-ass fixes that didn’t work or worked so poorly to the point of not being worth the trouble. Including soup cans & clamps to repair car exhaust pipes back around 50 years ago when I was a near penniless kid. Yeah, that lasted about two Fk’n seconds. :rolleyes
    But kept trying & I learned. So for many years now I have made quite a few parts out of metal for my street rod, my cars & bikes & other people’s machines. They look good & they work good. I don’t have all the skills & tools that some do but but I will still try something to save me from spending a lot for some overpriced part when the solution looks so simple. Sometimes that works & sometimes it don’t. Might take more than one try. When it does work I have the satisfaction of making my nice one off part & I been having pretty good luck for quite a while now. People like ‘em. I love stainless.
    Didn’t quite follow this:
    The slotted ends always go over the solid pipe & the clamp over the slotted end. Maybe you meant onto instead of into.
    I think you mean header pipe.
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  13. Alaskahack

    Alaskahack Adventurer

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    http://www.motorcycleinfo.co.uk/res.../r1200gs_exhaust/r1200gs_exhaust_manifold.jpg

    No I really meant exhaust manifold.

    I had a love affair with a MGB with wire wheels once. The exhaust system developed so many leaks that I took it to a muffler shop and had the system made. They did the custom bends,used thier machine to make slip fittings where needed. And it was finished product in maybe two hrs. I didn't have much money but felt it was worth getting the job done once.

    I still remember slipping one pipe into the other
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  14. Tom327Cat

    Tom327Cat T-Dub rider

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    Out past Wasilla, before you reach craig taylor equipment, there is a white building on the left that has a sign that says "tool sale". They have one there. Its like are own little Harbor Freight.
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  15. Alaskajeff

    Alaskajeff Long timer

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    Good info, I'll have to check that place out next time I'm in that neck of the woods. Thanks brother:D
    #15