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Thread: Cracked Exhaust Manifold

  
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    Cracked Exhaust Manifold

    Today I was changing my thermostat, ended up having to take my radiator off as there was no drainage bit on it so I couldn't flush the system properly with it still on. While I had it off I thought I would remove the exhaust manifold heatshield and check its all OK, but I noticed a small crack on it and not sure if this is bad or not, what sort of problems would a cracked exhaust manifold have?

    Heres a quick picture showing the crack, not the best pictures in the world but if someone could give me advice on what I should do next it would be great.

    Thanks



    Also I was bored so took a quick picture with my front end looking rather bare.

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    should be a piece of piss to source a replacement for your X18XE1

    fitting it is also a doddle - just be careful and watch out for sheared head/mani studs


    alternatively u could have the cast brazed (welded)


    heres an identical one to yours currently on the bay of E.....
    http://cgi.ebay.co.uk/VAUXHALL-VECTR...item19b8e16939

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    Quote Originally Posted by GeordieBandit View Post
    should be a piece of piss to source a replacement for your X18XE1

    fitting it is also a doddle - just be careful and watch out for sheared head/mani studs


    alternatively u could have the cast brazed (welded)


    heres an identical one to yours currently on the bay of E.....
    http://cgi.ebay.co.uk/VAUXHALL-VECTR...item19b8e16939
    Cheers for the reply, I had planned on changing the manifold to a lexmaul one, but would be at least 6 months or so until I have the cash, will I run into issues leaving it as it is? I am not sure if it is even cracked all the way through either.

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    youll be losing a bit of performance - ok the noise will probs just be on there on startup or until it heats up and expands and fills the gap

    personally id see if it could be welded in the meantime just to make the most of it - instead of just leaving it until its replaced

    totally upto you - but u may suffer quite badly with loss of economy etc - on the other hand - u may not!!! guess only time will tell




    Word of warning for anyone reading this - if u have a heatshield take it off pronto! Nasty things that more often than not cover up problems like this

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    weld it to buy time (i did with my old one), it will crack eventually in time next to the weld by then you will have your lexy replacement
    x18xe1 152bhp-136lbft

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    How much am I looking at to get it welded? Can it be welded on the car or will I have to strip it off and take it to someone?

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    i did it myself on the car with the bat disconnected -not sure what will cost suppose depends where and who will do it
    -by the look on the pic it can be done on the car as long as you have the right tools , you'll need to grind along the crack in a V shape so you can get a healthy weld and heath it with a acetylene torch before the weld otherwise as the weld cools it will just crack
    x18xe1 152bhp-136lbft

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    Cheers, My bosses best friend is a mechanic, hes only been starting up though so not sure if he has a welder yet, he is very easy paid which is good.

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    Tanasan what u got under the bonnet of that astra to reach 150 bhp

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    i got this (SEE VID)complemented with a remap, 4-2-1 lexy,200cell cat bolted to a straight tru 2.5" bastuck system


    x18xe1 152bhp-136lbft

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