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Thread: 1.9 CDTI 150 Glow plugs....Help???

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    Default 1.9 CDTI 150 Glow plugs....Help???

    Hello all

    I'm trying to change my glow plugs on my 1.9 Sri 150. They all unscrew fine and none of the threads have seized. However, they all seem to be stuck in the cylinder head somehow.

    They'll turn ok with the socket on, but make a squeaking noise (as if the shaft is a very tight fit in the hole) and don't come out any further - just spin in the hole.

    Any ideas why this is and how I would get them out. I'm very concious of the consequences of snapping one so don't want to be too brutal

    Any ideas will be very much appreciated..

    Thanks

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    Carbon build up.

    bit of wd40 keep turning and spraying.

    and gently wiggle should come eventually

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    Regular Member lee gsi's Avatar
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    That will be a ring of carbon stopping them coming out.

    Seen people spray plus gas etc with them removed as far as they can so it breaks it down.

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    Brilliant. Thanks for the advice. I'll give the plus gas a go tomorrow as that's what I have, and report back how it goes.

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    Regular Member Teapot's Avatar
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    usually they come out if you try to start the engine

    seriously... a colleague of mine snapped one off (the threaded section came out but no further. not sure how he managed to snap it from there). he drove it for for a few days and eventually it popped out.

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    Full Member merikiito's Avatar
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    Vehicle : Insignia CDTi SRi NAV 160

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    The ends of the glow plugs can swell up and can stop them coming out. Use plus gas and twist them out using the thread in the head to help.

    As I mentioned in other threads these should really be part of the service and changed every 2 years to prevent issues when removing them
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

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    Full Member merikiito's Avatar
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    Quote Originally Posted by littleteapot View Post
    usually they come out if you try to start the engine

    seriously... a colleague of mine snapped one off (the threaded section came out but no further. not sure how he managed to snap it from there). he drove it for for a few days and eventually it popped out.
    They do not "pop" out, they can come out with enough force to punch a hole through your bonnet. DO NOT use this method to get them out unless you want to cause damage
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

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    Regular Member Teapot's Avatar
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    Yes, probably not a good idea really. I was suprised my colleague didn't do any damage when his 'popped' out.

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    Success!!!

    Thanks for the advice chaps. It took a lot of wrist action, unscrewing and screwing back in again to work the PlusGas through but eventually they came out intact. And I can proudly tell the missus that 30-odd years of "wrist strengthening excercise" has paid off!

    Just need to purchase a 1/4" drive 9mm deep socket now to tackle No.2 plug. My 3/8" drive fouls on the vaccuum (I think) hose to the high pressure fuel rail.

    Thanks again everyone. This forum is a brilliant resource to have. My car has cost me a fair bit of money in past couple of years but I must have saved treble that amount in being able to do the majority of the work myself, and that is down to the sound advice given by people on here.

    Long may it continue.

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