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Cant budge the diff fill plug - Any suggestions?

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    Cant budge the diff fill plug - Any suggestions?

    This is posted in the tech forum, but more people come here..soooo.. pardon the double post.

    I cannot budge my diff fill plug. (Glad I didnt get the drain plug out first, right....)

    Using the BavAuto BMW specific socket and a ratchet ( I broke two ratchets trying to get this fdcker out) and spraying with pen oil still wont budge.

    Im going to get a short breaker bar 3/8 drive as that is what is needed for the socket. Any other ideas???
    sigpic 1987 325is

    #2
    Hit it with an instant shot of torque. Put a breaker bar on it and hit the breaker bar with a 5lb sledge.

    If the plug doesn't come out just get a new diff cover and gasket. You should be able to find a used diff cover with plugs for $25 or so.

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      #3
      you could also try putting a pipe on the breaker bar for more leverage

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        #4
        you could use some dynamite!!:)

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          #5
          Originally posted by Ben Carufel View Post
          Hit it with an instant shot of torque. Put a breaker bar on it and hit the breaker bar with a 5lb sledge.

          If the plug doesn't come out just get a new diff cover and gasket. You should be able to find a used diff cover with plugs for $25 or so.
          What he said. If all else fails... diff covers are easily found.
          Erick Mahle | FullOpp Drift | YouTube
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          Originally posted by Mr. Anderson
          ...one of the most hardcore E30's around. :D

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            #6
            breaker bar + muscle usually does the trick. you'll hear a rediculous crack noise as it loosens up too :-)
            Build Threads:
            Pamela/Bella/Betty/325ix/5-Lug Seta/S60R/Miata ITB/Miata Turbo/Miata VVT/951/325xi-6

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              #7
              using a rachet to break a stuck bolt free is an excercise in futility. buy a breaker bar, they're like $15..
              Build thread

              Bimmerlabs

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                #8
                Pull the cover and put the fucker in a vice with a 6 ft. breaker bar or an impact. It'll come loose.
                Originally posted by george graves
                If people keep quoting me in their sig, I'm going to burn this motherfucker down.

                Comment


                  #9
                  Originally posted by Ben Carufel View Post
                  Hit it with an instant shot of torque. Put a breaker bar on it and hit the breaker bar with a 5lb sledge.

                  If the plug doesn't come out just get a new diff cover and gasket. You should be able to find a used diff cover with plugs for $25 or so.


                  Works every time.
                  sigpic
                  "The best argument against democracy is a five-minute conversation with the average voter." - Winston Churchill

                  Comment


                    #10
                    Had a similar issue with the transmission fill plug recently. Ruined a ratchet trying to loosen the plug with a cheater. Breaker bar & muscle finally got it free.

                    Comment


                      #11
                      Originally posted by nando View Post
                      using a rachet to break a stuck bolt free is an excercise in futility. buy a breaker bar, they're like $15..
                      Yes, stop killing ratchets.

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                        #12
                        one other note, unless you really like breaking tools, buy a 1/2 inch drive breaker bar to get that plug loose, not a 3/8. you will just snap the metal square that goes into the socket with 3/8ths if youve already broken ratchets. and putting cheater pipe may help, but thats a do at your own risk as well.

                        {ninja edit} or try a 6 point wrench and a dead blow hammer. and use pb blaster. you can take apart the whole goddamn world with that stuff.
                        Last edited by crashoverride7; 10-18-2009, 09:15 PM. Reason: added thought

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                          #13

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                            #14
                            try using the fire axe. (lil bit of heat=torch) heat the cover up a bit around the plug. not directly on the plug. this will expand the the metal a bit thus making easy to remove.
                            ive done it lots of times on diffs,trannies,& transfer cases.

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                              #15
                              Am getting a breaker bar, and will try the heater on the cover AROUND the plug. ( I get it!!)

                              Are the tranny plugs as hard as these diff plugs???

                              Thanks for the comments guys...
                              sigpic 1987 325is

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