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  Mustangsandmore Forum Archive
  '69 to '73 -- The Musclecar Mustang
  Transmission fluid leak

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Author Topic:   Transmission fluid leak
Harley
Gearhead

Posts: 204
From:
Registered: Jul 99

posted 11-07-2006 11:53 PM     Click Here to See the Profile for Harley        Reply w/Quote
I've had a troublesome transmission fluid leak and finally figured out why. The head to one of the bolts on the pan was tightened to the point that it broke off.

So now I've got this broken-off bolt threaded into the bottom of the transmission. Any ideas on the best way to get it out? It broke off inside the bolt hole, so there's no way to grab onto it with vice grips.

SkinnyMan
Gearhead

Posts: 916
From: Tupelo, MS - USA (CA temporarily)
Registered: Jan 2005

posted 11-08-2006 12:14 AM     Click Here to See the Profile for SkinnyMan        Reply w/Quote
quote:
Originally posted by Harley:
I've had a troublesome transmission fluid leak and finally figured out why. The head to one of the bolts on the pan was tightened to the point that it broke off.

So now I've got this broken-off bolt threaded into the bottom of the transmission. Any ideas on the best way to get it out? It broke off inside the bolt hole, so there's no way to grab onto it with vice grips.


It's called an "easy out."

Most good hardware stores have them. Drill the remains in the hole. Push in and turn the "easy out" basically a coarse, reverse (left hand) thread drill bit. It'll all come out.

------------------
SkinnyMan
Tupelo, MS

Thank you, Thank you very much!

[This message has been edited by SkinnyMan (edited 11-08-2006).]

Dave Gibson
Moderator

Posts: 10769
From: Norfolk, Virginia, USA M&M#166 MCA#47921
Registered: Aug 99

posted 11-08-2006 06:24 AM     Click Here to See the Profile for Dave Gibson        Reply w/Quote
As stated above, use a left handed drill bit. Also check with sears or other tool suppliers for a "Screw Out" kit. Center punch the screw and drill slowly. Low speed is your friend. High speed will cuase your bit to drift and burn up quickly.

Dave & Terri

------------------
'65 Mustang Fastback
'66 Mustang Coupe
'02 Explorer XLT
Common sense isn't common anymore.

Dave Gibson
Moderator

Posts: 10769
From: Norfolk, Virginia, USA M&M#166 MCA#47921
Registered: Aug 99

posted 11-08-2006 07:42 AM     Click Here to See the Profile for Dave Gibson        Reply w/Quote
Also check your tranny fluid pan for warpage. Sounds like you will have some after all the torque that was applied to the pan bolts.

Dave & Terri

------------------
'65 Mustang Fastback
'66 Mustang Coupe
'02 Explorer XLT
Common sense isn't common anymore.

Harley
Gearhead

Posts: 204
From:
Registered: Jul 99

posted 11-08-2006 11:53 AM     Click Here to See the Profile for Harley        Reply w/Quote
If it's warped, is it time for a new pan? What should I torque those bolts at?

Harley
Gearhead

Posts: 204
From:
Registered: Jul 99

posted 11-08-2006 04:02 PM     Click Here to See the Profile for Harley        Reply w/Quote
the pan is OK but...

I still can't get that broken-off bolt out. Got the easy-out kit and tried every trick possible and simply can't make any headway. One problem is that I'm working on my back under the car and have a hard time getting good leverage. Also, the piece of the bolt that remains isn't flat, so the bit wants to walk across it.

Any other ideas before I put the pan back on (minus the one bolt) and run it up to a nearby shop?

69 Sportsroof
Gearhead

Posts: 2814
From: Valley, Alabama, USA
Registered: Mar 2002

posted 11-08-2006 04:43 PM     Click Here to See the Profile for 69 Sportsroof        Reply w/Quote
Have you tried using and awl or ice pick or something similar to try and turn the bolt? If it's not bottomed out it may back out enough for you to get some pliers on it. Just a thought......

Dave Gibson
Moderator

Posts: 10769
From: Norfolk, Virginia, USA M&M#166 MCA#47921
Registered: Aug 99

posted 11-08-2006 04:43 PM     Click Here to See the Profile for Dave Gibson        Reply w/Quote
quote:
Originally posted by Harley:
Also, the piece of the bolt that remains isn't flat, so the bit wants to walk across it.

In that case, I would still try to center punch the bolt. Then start with a small drill bit and get it started. You don't need a ton of leverage. Just some pressure and LOW SPEED. Of course, lots of patience is needed. Take it slow and easy and you will get it. Wish I lived closer that way I could come on over and give you a hand.

Dave & Terri

------------------
'65 Mustang Fastback
'66 Mustang Coupe
'02 Explorer XLT
Common sense isn't common anymore.

SteveLaRiviere
Administrator

Posts: 48752
From: Saco, Maine
Registered: May 99

posted 11-08-2006 06:02 PM     Click Here to See the Profile for SteveLaRiviere        Reply w/Quote
If you are having a hard time dimpling the bolt shank to drill, get a Dremel with a ball bit and make the hole with that. Watch the shavings, though!

------------------
'70 Mustang Mach 1 - '70 Mustang Convertible - '72 Mustang Sprint - '94 F-150 XL

Harley
Gearhead

Posts: 204
From:
Registered: Jul 99

posted 11-08-2006 08:39 PM     Click Here to See the Profile for Harley        Reply w/Quote
Great idea. Another excuse to buy another tool! I love it.

Harley
Gearhead

Posts: 204
From:
Registered: Jul 99

posted 11-09-2006 11:14 PM     Click Here to See the Profile for Harley        Reply w/Quote
Now I've got a real problem. After a lot of patience and numerous metal shavings in my face, I wa smaking good progress when the darn easy-out tool broke off deep inside the hole. I've tried the same process to get it out with no luck.

So now what?

68 Coop
Gearhead

Posts: 5847
From: Mesquite, NV. 89027
Registered: Oct 2004

posted 11-10-2006 12:10 AM     Click Here to See the Profile for 68 Coop        Reply w/Quote
Educated guess, but it looks like you are going to have to drill it out, and re-tap the hole.

Dave Gibson
Moderator

Posts: 10769
From: Norfolk, Virginia, USA M&M#166 MCA#47921
Registered: Aug 99

posted 11-10-2006 05:59 AM     Click Here to See the Profile for Dave Gibson        Reply w/Quote
There is an easy out removal tool. I don't remeber where we ordered them for work, but we bought several different sizes. Check with a local machine shop or snap on??! May well be worth the time and effort.

Dave & Terri

------------------
'65 Mustang Fastback
'66 Mustang Coupe
'02 Explorer XLT
Common sense isn't common anymore.

Harley
Gearhead

Posts: 204
From:
Registered: Jul 99

posted 11-10-2006 11:53 AM     Click Here to See the Profile for Harley        Reply w/Quote
It's the easy-out tool that broke off.
I've worked 2 hours (dremel, left-handed drill bit, etc) and can't even make a dent in it.

Looks like I'll have to button up the pan the best I can and limp it to a shop.

[This message has been edited by Harley (edited 11-10-2006).]

PONYMAN
Gearhead

Posts: 421
From: Ardmore, Ok. USA
Registered: Jul 99

posted 11-10-2006 05:10 PM     Click Here to See the Profile for PONYMAN        Reply w/Quote
Easy outs are made of an incredibly touch metal. It is going to be almost impossible to drill it out. I speak from experience, I broke one off on one of the bolts that holds the timing chain tension in place on my wife's MGB. I ended up welding a stud to the remains of the old bolt. Then instead of having a bolt in that hole, I had a stud with a nut on it instead. Hope you have better luck than I did, but it may offer a solution.

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