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Thread: Rant: appalling workmanship leaving a mate driving a deathtrap

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    Angry Rant: appalling workmanship leaving a mate driving a deathtrap

    The most scandallous piece of shoddy workmanship I've ever seen yesterday...

    A mate's got a Merc 5L V8 coupe with an LPG conversion - I spot him with the bonnet up about to drive home from work, he waves me over "can you smell gas?" he asks me... Can I smell it? It's p155ing out, you can hear it leaking! So I ask him to get some water with washing up liquid in and start to pour it around.... sweet jesus, the worst gas leak I have ever seen (by the time you can smell it, the leak is massive). The system consists of a shut off solenoid, a gasifier (uses engine heat to convert the liquid LPG to gas) then this pipes to two manifolds, each with 4 pipes to the individual cylinder 'gas injectors'.

    The cowboys had used totally the wrong pipe size on both manifolds: the pipe had been jubilee clipped up to within an inch of its' life onto a 'too small' pipe spigot. I found one pipe that could be rotated on its' union - all in all eight massively leaking joints... and that's just what we found at the time.

    So I pulled the electricity supply to the shut off solenoid to ensure that the system could not try and run on gas: he could then get home on petrol. Gas was still leaking for around 2 minutes after the shutoff had been killed (due to the 'backlog' of high pressure gas in the system). So if the car had cought fire and you turned off the ignition, you would have had gas coming out for 2 minutes after and would not have been able to stop the fire. By that time, the engine bay would have been well alight and the car a gonner.

    How these cowboys can have such a blatant disregard for the job and put someone's life in immediate danger is beyond me... just because some muppet cannot be bothered to get the right size hoze for the job.

    What's more, the system has been signed off as safe by some other person! It should have been condemned as it left the workshop!

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    Regular Member dannyjpuk's Avatar
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    thats bad luckly you where there mate hope all goes well

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    that's shocking. either those responsible should be charged with negligence, or much tighter restrictions on the muppets who are allowed to carry out this work should be implemented. both, even.

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    Full Member chrisvectra's Avatar
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    you should name and shame
    VXR IS FOR LIFE NOT JUST FOR THRILLS !



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    Regular Member DAVIDD88's Avatar
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    Totally agree with Chris and that's terrible

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    thats bad it shouldnt of passed its inspection

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    Quote Originally Posted by chrisvectra View Post
    you should name and shame
    Seeing him on Monday & will have a word.

    I strongly suspect that the company that carried out the work no longer exists... but he does have the paperwork, including, he says, details of the person who signed it off.

    AFAIK, they have to be signed off for your insurance to accept the modification to the vehicle.

    Might not be such a good idea to name and shame at the moment... I'm a Boat Safety Examiner and have said that I will be a professional witness and write a letter detailing the faults, as I found them... although I don't have anything to do with car LPG systems, making competent joints between a flexi pipe and a hose barb using a jubilee clip is a fairly basic task to achieve and simply requires using the correct pipe size, jubilee clip and applying the right pressure to the clip, rather than using whatever piece of pipe you can get your hands on then winding the life out of the jubilee

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    they will use the well worn excuse it was fine when it left here, someone must have been tinkering with it after it left the workshop

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    I am interested to see the paperwork involved in signing it off... if indeed it was actually done

    I'm also not sure whether there is any 'gas tightness' test carried out in the signing off process.

    The joints were clearly not made competently in the first place, due to the mis-match between pipe sizes, necessitating the over tightening of the jubilee clips. This can clearly be seen by the clip 'biting into' the pipe. This has 2 consequences: eventually the pipe will split and it is very hard to form a seal in the first place, as the clip does not make a circular shape when over-tightened.

    The basic checks for this type of joint that we look for on a BSS is here:

    All LPG hose connections:
    n
    must be accessible for inspection; and,

    n
    must be part of pre-assembled lengths of hose of proprietary
    manufacture (high- and low-pressure applications); or use suitable
    nozzles secured by crimped or worm-drive clips (low-pressure
    applications only);
    and,

    n
    must not be made using hose clamps fixed by spring tension; and,

    n
    must be free of any missing components, cracks, burrs or rough
    edges or signs of other damage or deterioration;
    and,

    n
    must not be so narrow as to cut into the hose; and,

    n
    where made with crimped or worm-drive clamps, the clamps must be
    suitably sized, that is, not so oversized that the band forms an
    elliptical shape, or so undersized that inadequate compression is
    achieved;
    and,

    n
    be appropriately tight, that is, not so loose that the connection can be
    pulled forward or back under light manual force nor so tight that the

    hose is excessively pinched

    If it looks like the excuse of 'it was OK when it left' is going to be used and there's no comeback, then some naming and shaming is in order, including a nice video (if poss) of the worst gas leak I've seen.

  10. #10
    Regular Member Grumpy1954's Avatar
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    That's diabolical, hope you can bring the cowboys to justice.

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