Fill plug problems on 93 C4 6 speed
Thread Starter
Racer
Joined: Sep 2002
Posts: 337
Likes: 2
From: New Orleans La
Fill plug problems on 93 C4 6 speed
The plug won't budge!
Tried Blaster penetrate and a long breaker bar and all I did was round it out!
I was using a 17mm hex socket.
I tried the vice grips and it just tears it up!
What about heat?
Anyone tried that?
I hate to drill because of metal getting into the tran's.
Maybe using grease would help
When drilling.
Very aggravated at this point!😩
Tried Blaster penetrate and a long breaker bar and all I did was round it out!
I was using a 17mm hex socket.
I tried the vice grips and it just tears it up!
What about heat?
Anyone tried that?
I hate to drill because of metal getting into the tran's.
Maybe using grease would help
When drilling.
Very aggravated at this point!😩
Last edited by Herb; Jun 8, 2016 at 11:35 PM. Reason: Adding year!
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Heat. Heat is the answer. Heat it. If you apply heat around to the case, around the plug, it will come out. Use a LOT of heat, b/c it's an aluminum case, it will transfer heat away from the area that you're heating, rapidly.
Use heat.
Use heat.
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
All M17 HEX I've ever seen "off the shelf" have a champher/taper on the end. Cut the HEX flat and using a M17 box-end I've never had issues. A stubborn one that I had to use a cheater on but nothing more. If it's a very short HEX in a socket maybe remove it from the socket.
Actually what size are you trying to use. I thought I had seen you ask something regarding ZF plugs not that long ago. You've likely created your own issue. "QCVette" mentions the VW part # that I posted years ago to buy "local" - you need the correct stuff to start with.
https://www.corvetteforum.com/forums...plug-size.html
Actually what size are you trying to use. I thought I had seen you ask something regarding ZF plugs not that long ago. You've likely created your own issue. "QCVette" mentions the VW part # that I posted years ago to buy "local" - you need the correct stuff to start with.
https://www.corvetteforum.com/forums...plug-size.html
Thread Starter
Racer
Joined: Sep 2002
Posts: 337
Likes: 2
From: New Orleans La
Not sure how I created my own issue.
Just going with what I was dealt.
Obviously, someone put a different plug on the drain because it took a 5/8 hex bit
socket.
I'll be calling VW and Audi when they open this morning. Thanks
Forumsters for the help!
Just going with what I was dealt.
Obviously, someone put a different plug on the drain because it took a 5/8 hex bit
socket.
I'll be calling VW and Audi when they open this morning. Thanks
Forumsters for the help!
Safety Car
Joined: Aug 2013
Posts: 4,429
Likes: 605
From: Minneapolis Mn
Not knowing what's going on, some things are just 'might work'.
One is to heat the area up then apply paraffin to the area between the plug and case. Sometimes it will soak into the thread area and help lube to allow it to come out.
If it was out before, they may have used something like Loctite RED on it and that takes heat to break the seal.
They may have put a different threaded plug in there and crossthreaded the hole.
Being it's an aluminum case, it's not likely you have rust but it's possible there might be some galvanic (?) action going on between dissimilar materials. a 50-50 mix of ATF and acetone is a good rust penetrant but I have no idea how it might react on oxidation.
One is to heat the area up then apply paraffin to the area between the plug and case. Sometimes it will soak into the thread area and help lube to allow it to come out.
If it was out before, they may have used something like Loctite RED on it and that takes heat to break the seal.
They may have put a different threaded plug in there and crossthreaded the hole.
Being it's an aluminum case, it's not likely you have rust but it's possible there might be some galvanic (?) action going on between dissimilar materials. a 50-50 mix of ATF and acetone is a good rust penetrant but I have no idea how it might react on oxidation.
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Thread Starter
Racer
Joined: Sep 2002
Posts: 337
Likes: 2
From: New Orleans La
If ya can't take the heat stay out of the transmission!!
I Finally got that Sum bitch!
Some heat and a vice grips did the trick!
Can't say why it was so stubborn, there was nothing showing on the threads
I ordered two plugs from the local Audi dealer. Should be here tomorrow.
Now, for the next disaster!
Some heat and a vice grips did the trick!
Can't say why it was so stubborn, there was nothing showing on the threads
I ordered two plugs from the local Audi dealer. Should be here tomorrow.
Now, for the next disaster!
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Melting Slicks
Joined: Jan 2009
Posts: 3,482
Likes: 196
From: folsom california
The steel fill plug on my buddies Toyota 4 wheel drive transmission had seized to the aluminum case; the hex head had rounded off, pipe wrenches and cheater bars chewed off what was left; it took a small acytelene torch heating the plug to a dull red to break the bond between the steel plug and aluminum case, and then it came right out without any further drama.
Last edited by mtwoolford; Jun 9, 2016 at 07:14 PM.