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DISCUSSION => Engine + Driveline => Topic started by: a.12912 on March 16, 2009, 12:21:37 AM

Title: changing gearbox oil
Post by: a.12912 on March 16, 2009, 12:21:37 AM

spent an afternoon replacing all shift linkages and blown clutch master-cylinder, so wile i was under there i figured I'll do the box oil also.

problem being the big 17mm inverse hex nut / allen bolt wont budge!!

any ideas how to get the thing to move??

cheers

Title: changing gearbox oil
Post by: xwill112x on March 16, 2009, 01:56:31 PM

vice grips work well, get someone extra to push on those while you work with the ratchet.

Title: changing gearbox oil
Post by: P. Kennedy on March 16, 2009, 06:24:00 PM

When my ratchet handle alone doesn't allow enough leverage, I have a galvanized pipe maybe 2 ft. long and large enough in diameter to slide over the ratchet handle.  Leverage = Good.  Let physics work for you!

If my 2 ft. pipe doesn't do it, I have 5 ft. barbell handle that I can secure onto a breaker bar.  That has never failed me.

Title: changing gearbox oil
Post by: Jimmy Lewis on March 16, 2009, 06:48:51 PM

Penetrating lube and leverage are your friend. I think I used a 17mm nut I had laying around, stuck it in a shallow socket and just used a 1.5ft breaker. It came out fine for me, but if it did give me trouble I would have broken out the 3ft breaker bar and some penetrating lube, always does the trick.