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Thread: Can't remove sump plug

  
  1. #1
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    Can't remove sump plug

    Hi,

    I can't remove the sump plug on my Astra (1.4l) to change the oil & filter.
    I've already broke 2 Torx45 bits. I have an impact wrench here but I don't have the adapter to fit the torx bit.

    It's unbelievably tight.

    Any idea's folks?

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    RobW's Avatar
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    Might sound silly, but are you turning it the right way?

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    Follow jam On Twitter
    You could try tightening it a small amount then slackening it off. Thats usually pretty sucessful for me. You could try heating it up IE running the engine. I know you don't want to burn your hands but the sump doesn't leak until its nearly out so if you can just get it moving and then give it an hour or so to cool down.
    Its a jam thing

    Haec credam a deo pio, a deo justo, a deo scito?



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    have you tried undoing it when the engine/oil is hot? also try soaking it in WD40 or penetrating fluid and leaving it for an hour or two.

    Maybe a knock with a hammer may do the trick, or a breaker bar for a bit of leverage may help.

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    autoSRI's Avatar
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    give it a tap with a hammer it will crack the crap of it then it might be a bit easier

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    Id try applyin a little bit of heat if possible and maybe tryin to tighten it a little first before tryin to loosen it.

    Defo use a breaker bar for leverage tho

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    it sounds like the tx bits are the weak link so extra leverage wont make much differance
    what about investing in a decent tx bit instead of one thats made from cheese

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    dont forget to replace the copper washer when its all done and whack a bit of copper grease on it, so its a bit easyer to undo next oil change!
    ARDEN BLUE GSI

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    Dont the torx ones have a rubber washer on the underside?

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    Quote Originally Posted by Techie View Post
    Dont the torx ones have a rubber washer on the underside?
    ross the late cars have the rubber ring on the sump
    early ones have the brass washer

    me i find them dead easy once under the car ie pits or ramp an a braker bar 12inch is fine most of the time

    also always drop the oil when the engine is Hot go for a drive about 30 mins park up leave it for 5 mins for all the oils to go back into the sump.
    take the oil filler cap off and the dip stick.
    then undo the sump plug

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