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  1. #11
    Join Date
    Sep 2016
    Location
    Burnley
    Posts
    687

    Default Re: Remove stripped head screw on break drum

    Plus Gas

    minchars

  2. #12
    Join Date
    Oct 2017
    Location
    Bury Lancs
    Posts
    241

    Default Re: Remove stripped head screw on break drum

    The drums were originally solid on my Roadster. Gentle 'persuasion' with a large soft faced mallet failed. Used Plusgas on the hub/drum centre, left it a week & gentle persuasion worked perfectly. Emry cloth on the bore of the drum & wipe of copper slip keeps them removal-able.

  3. #13
    Join Date
    Jun 2005
    Location
    Aberdeenshire
    Posts
    2,136

    Default Re: Remove stripped head screw on break drum

    Best penetrating release agent is normal candle wax. Works for rusty bolts and nuts and in general on anything made out of metal that has seized up. Its only snag is one must be smart to use it. Candle wax will only penetrate when the metal is hot so unsuitable for parts that will melt or deform when heated by a blow lamp or heat gun.

  4. #14
    Join Date
    Jun 2005
    Location
    Aberdeenshire
    Posts
    2,136

    Default Re: Remove stripped head screw on break drum

    Fools, mainly North Americans, claim a 50-50% mix of acetone and automatic transmission fluid is the best penetration oil.

  5. #15
    Join Date
    Sep 2016
    Location
    Burnley
    Posts
    687

    Default Re: Remove stripped head screw on break drum

    Quote Originally Posted by tolsen123 View Post
    Fools, mainly North Americans, claim a 50-50% mix of acetone and automatic transmission fluid is the best penetration oil.
    It works really well. If I have no plus gas then I use acetone and ATF

  6. #16
    Join Date
    Jun 2005
    Location
    Aberdeenshire
    Posts
    2,136

    Default Re: Remove stripped head screw on break drum

    Quote Originally Posted by Mjolinor View Post
    It works really well. If I have no plus gas then I use acetone and ATF
    This is a myth debunked.
    Acetone and ATF do not mix regardless how much you shake or agitate. They are incompatible fluids just like oil and water.

    Above is a 50-50% "mix" of used ATF transmission fluid drained from my Smart 450 and industrial acetone. I've been shaking the jar now for at least ten years and the fluids have still not mixed.
    The fluids will separate in less than 5 minutes after having shaken jar vigorously.

  7. #17
    Join Date
    Jan 2016
    Location
    Somerset
    Posts
    56

    Default Re: Remove stripped head screw on break drum

    Hmmmmm.... I has noticed a further complication to removing the drum.
    If you look closely at my picture you'll see what looks like a sealant oozing from the hub/drum joint.
    At first I thought it was just a build up of rust, but when I tried to clean it off a powdery 'white sealant' was exposed, and this seems to be covering the complete surface between the hub and drum.

    I think I may need to get hold of a puller - if I can find one large enough locally.

  8. #18
    Join Date
    Jul 2005
    Location
    over here
    Posts
    13,906

    Default Re: Remove stripped head screw on break drum

    Quote Originally Posted by pewe View Post
    At first I thought it was just a build up of rust, but when I tried to clean it off a powdery 'white sealant' was exposed, and this seems to be covering the complete surface between the hub and drum.

    I think I may need to get hold of a puller - if I can find one large enough locally.
    I thought it could be the corrosion you get between alloy wheels and cast iron drums (dissimilar metals reaction)

    Anyway if you use a puller, use the persuader also otherwise the shoes may tilt and make it even worse , a persuader will maybe jog them along as you pull
    fq101.co.uk

  9. #19
    Join Date
    Jun 2005
    Location
    Aberdeenshire
    Posts
    2,136

    Default Re: Remove stripped head screw on break drum

    Heat, candlewax, persuader. Keep repeating until off.

  10. #20
    Join Date
    Jan 2016
    Location
    Somerset
    Posts
    56

    Default Re: Remove stripped head screw on break drum

    Sorry to be a bit obtuse guys, but when you refer to a 'persuader' (it's not a term I'm familiar with.), are you talking about a particular tool, or something else?

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