C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ZF6 Drain plug

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Old 10-08-2011, 10:55 AM
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BobW75
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Default ZF6 Drain plug

What size allen or bolt do you need to remove the drain plug?
Old 10-08-2011, 11:29 AM
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captainkawasaki
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I used a 17mm bolt with two nuts tightened against one another on the side. Worked for my car, but on my friend's we needed to weld a blob on the side of the nuts to stop then from turning. Better advice is to go buy a tool, but I had the stuff laying around.
Old 10-08-2011, 12:55 PM
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SouthernSon
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Not at the garage but it is a socket type arrangement. Can get a set of 3 at the local auto parts place.
Old 10-08-2011, 01:11 PM
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jaa1992
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Originally Posted by southern_son
Not at the garage but it is a socket type arrangement. Can get a set of 3 at the local auto parts place.

This set worked perfectly for me. Had to use a breaker bar to start the fill plug first, then open the drain plug.
Old 10-08-2011, 01:49 PM
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dan_t
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17mm Hex

If they are tight I would try and "shock" them out rather than a constant pull on a breaker bar. You can easily round off the Hex if your not carefull.

Mine come out pretty easy now as I change my oil every couple of years.

First though - Undo the FILL plug. Theres no point draining all the oil out before you know you can get in there to fill it back up.
Old 10-08-2011, 10:18 PM
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captainkawasaki
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I got the "try the fill plug first" advice, best advice I've ever gotten. Take heed!
Old 10-08-2011, 11:00 PM
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RollaMo-LT4
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As stated, use a 17mm hex bit. And make sure you can loosen the fill plug before you remove the drain plug.
I found this at AutoZone. 1/2" drive socket.

http://www.greatnecksaw.com/product_...oducts_id=7620

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