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Thread: Fitting an exhaust backbox..

  1. #1
    Regular Member danlat1415's Avatar
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    Default Fitting an exhaust backbox..

    I've bought an SRI backbox off spoons, and planning on fitting it sometime over christmas.

    The garage who took the box off to fit the new one, just sawed it off instead of releasing the grip and removing it. There is no damage to it at all, but there is a bit of the exhaust pipe stuck in the end of the backbox.
    I've undone the clamp, and it seems pretty tight in. Whats the best way of removing it? Has anyone had anything similar before?
    just trying to get an idea of what to do, before I actually tackle it.





    Thanks
    Dan

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    Regular Member Maverick's Avatar
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    I have been through this before on an Astra many years ago. As you have a couple of weeks before you fit it, I would give it a good coating of WD40, and spray again every few days.

    Then leave it for a few days to 'dry' out and heat up the whole end of the tail pipe. With the box secured, you should be able to manipulate the end peice out of the box section.

    It is not easy but it will come out.

    Hope this helps, the one I did was off a 6 year old car and was well rusted in, but it came out!!

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    Could also try drilling through the sawn off bit of pipe to enable you to fit a bar to it (through the holes). Then you can attach something to the bar to give you extra grip and leverage when you try to pull it out.

    Just a thought.

    You could even tie one end (i.e. the silencer box, securely, be carful to spread the weight/load around it) to the towbar/hook of one car and the lashing point (previously fitted as above) to another car and gently drive the two cars slowly apart. That could work couldn't it?

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    Regular Member Gsi3.2's Avatar
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    OMG!! not the above!!..

    you just need to destroy the inner pipe.. take a hammer and cold chisel and knock the inner stub down into itself..this will collaspe it and make it smaller than the outer clamp pipe.. it will then easily pull out.....

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    Your way sounds less stressful, GSi.

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    Regular Member Swatty's Avatar
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    I have an image in my mind now of a silencer embedded in the back of a car when it does free it’s self .

    Seen it happen on a land rover when the shackle separated from the boat trailer we were trying to pull out the water (made quite a mess of the aluminium back door).

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