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Can't Undo My Diff Fill Bolt

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Shoota_77 Veteran

Shoota_77

Posted
Posted

Leverege is the answer!. I presume it's a 1/2 plug where you use the breaker bar or ratchet straight into the plug? If yes, put the breaker bar on it and put and extension onto the breaker bar (piece of pipe). They get overtightened when reinstalled for some reason. They really only need to be firmly tightened not done up like they're holding the whole car together like they seem to be most of the time!

Otherwise you could try a bit of heat (a bit, not glowing red!) around the bung. This will hopefully soften any seallant that's on it and enlarge the housing a little to loosen it as the alloy will expand quicker than the steel plug.

Good luck!

Shoota_77 Veteran

Shoota_77

Posted
Posted

If you can get someone else to maintain the pressure on the breaker bar while it's being heated that will make life easier and you don't over or under heat it. IT will let go as soon as it reaches the right temp. Don't burn him though, he might not come back....

Duncan Grand Master

Duncan

Posted
Posted

Ok so I jacked it up, and with afew extra inches or leverage and using my foot (nearly doing my back lol) she cracked, you beauty !!

good news :)

I was going to say...be careful with 1/2" extensions/breaker bars etc. Often the plugs are a little round already and you can really f**k it.

You can get 13mm square fittings for this exact job. They are a lot tighter fit and won't round it off. The one I have is 13mm square at one and and 19mm hex at the other so you can put a big spanner or bar over it to get the leverage you need.

But I'll be f**ked if I understand why they are alawys so damn tight! Even when I put them back in a little loose, it takes f**king superman to take them off again!

wouldnt go crazy with the leverage as you might strip the 1/2" socket, tap and heat works for sure

damn straight, good tips.

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