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Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115500
05/25/19 03:24 PM
05/25/19 03:24 PM
Joined: Jan 2017
Posts: 508
NJ
JLawrence08648 Offline
JLawrence08648  Offline

Joined: Jan 2017
Posts: 508
NJ
large Stud extractor

Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115504
05/25/19 03:28 PM
05/25/19 03:28 PM
Joined: May 2010
Posts: 10,262
out there
spasm3 Offline
spasm3  Offline

Joined: May 2010
Posts: 10,262
out there
I would try a 12pt hammered socket first. ( don't bend the pan though.)

Then a large enough vise-grip or small pipe wrench.

If above does not work , mig weld a nut on it.

Last edited by spasm3; 05/25/19 03:29 PM.

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Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115515
05/25/19 03:35 PM
05/25/19 03:35 PM
Joined: May 2009
Posts: 13,090
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline

Joined: May 2009
Posts: 13,090
N.H, U.S.A.
I had this happen on my Subaru. I used med sized vise grips. It was soft metal and they grabbed nicely. The reason they rounded it off. Used to be 17mm IIRC then they went to 14 MM but with the same large bung thread.

I was going to get a grinder wheel on a small E- Drill and grind it down to the next smaller size.

I bet the vise grips may work. Hammer on it. The Impact loosens it up


2019 VW Jetta S 6MT OCI#0 5033mi-Castrol Edge Prof? VW508+OE Filter; '17 Subaru Crosstrek CVT OC#7 52665mi-Castrol GTX Magnatec 5W20 + SOA Filter
Re: Rounded off oil drain bolt - How to remove? [Re: supton] #5115521
05/25/19 03:39 PM
05/25/19 03:39 PM
Joined: Dec 2016
Posts: 9,124
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 9,124
Waco, TX
Originally Posted by supton

I wonder if, if you lack tools for this, if it's just not easier to pay a mechanic to do an oil change, with fair warning to him.


Bring him a new drain plug to install.

Make him bring you the old one.


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Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115539
05/25/19 03:58 PM
05/25/19 03:58 PM
Joined: Feb 2017
Posts: 96
NY
2dogs Offline
2dogs  Offline

Joined: Feb 2017
Posts: 96
NY

Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115553
05/25/19 04:12 PM
05/25/19 04:12 PM
Joined: Sep 2014
Posts: 2,254
US-WA
Dyusik Offline
Dyusik  Offline

Joined: Sep 2014
Posts: 2,254
US-WA
I used a left hand drill bit to extract a bolt before, easy enough for a steady hand.


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Re: Rounded off oil drain bolt - How to remove? [Re: KrisZ] #5115566
05/25/19 04:21 PM
05/25/19 04:21 PM
Joined: Oct 2014
Posts: 13,821
Idaho
CT8 Offline
CT8  Offline

Joined: Oct 2014
Posts: 13,821
Idaho
Originally Posted by KrisZ
I would use one of these, provided there is room. Tightens as you apply torques so you know it will not let go of the bolt.

[Linked Image]

Large vice grips might also work, but you have to make sure they are on square and very tight, otherwise you will mingle the bolt even more.


This


2015 F150 2.7
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Re: Rounded off oil drain bolt - How to remove? [Re: 2dogs] #5115574
05/25/19 04:28 PM
05/25/19 04:28 PM
Joined: Nov 2006
Posts: 22,029
MA, Mittelfranken.de
Trav Offline
Trav  Offline

Joined: Nov 2006
Posts: 22,029
MA, Mittelfranken.de
Originally Posted by 2dogs

+1 That is what I would use first, the HF should be good enough for a couple of uses. A better quality tool will last longer but at least the HF goes to 19mm.

Edit: Never mind I see you already tried them, go with the pipe wrench or Cobra's.

Last edited by Trav; 05/25/19 04:30 PM.

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Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115634
05/25/19 05:27 PM
05/25/19 05:27 PM
Joined: Dec 2004
Posts: 11,355
1/2 hr N.E. of Detroit
Triple_Se7en Offline
Triple_Se7en  Offline

Joined: Dec 2004
Posts: 11,355
1/2 hr N.E. of Detroit
Larger vise grips and make them super-tight to close.


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Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115637
05/25/19 05:29 PM
05/25/19 05:29 PM
Joined: Jan 2018
Posts: 1,196
San Antonio, TX
das_peikko Offline
das_peikko  Offline

Joined: Jan 2018
Posts: 1,196
San Antonio, TX
10 or 12 inch Knipex Cobras. Make sure the lower jaw is on your right side.

Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115732
05/25/19 07:11 PM
05/25/19 07:11 PM
Joined: Jun 2016
Posts: 4,672
MN
oil_film_movies Offline
oil_film_movies  Offline

Joined: Jun 2016
Posts: 4,672
MN

Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115767
05/25/19 07:47 PM
05/25/19 07:47 PM
Joined: May 2019
Posts: 182
California
OnTheRocks Offline
OnTheRocks  Offline

Joined: May 2019
Posts: 182
California
You will need a special socket for rounded off fasteners. 2nd consideration is why it's rounded off. Did someone use an impact wrench? Then it's pounded on, and rounded off. Who knows what conditions the threads might be in.

Get a new magnetic drain plug and the washer. You may also need a thread repair kit by the time you get this removed.

[Linked Image]


[Linked Image]


Last edited by OnTheRocks; 05/25/19 07:48 PM.
Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115771
05/25/19 07:51 PM
05/25/19 07:51 PM
Joined: Apr 2010
Posts: 1,743
Suburban Washington DC
atikovi Offline
atikovi  Offline

Joined: Apr 2010
Posts: 1,743
Suburban Washington DC
Leave it alone and suck the oil out the dipstick tube from now on.

Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115787
05/25/19 08:13 PM
05/25/19 08:13 PM
Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline

Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
The Irwin Bolt Grips that OnTheRocks posted.

Use a short handled sledge to whack the right one on. It will get that plug out, without fail.


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Re: Rounded off oil drain bolt - How to remove? [Re: spk2000] #5115961
05/26/19 01:51 AM
05/26/19 01:51 AM
Joined: May 2019
Posts: 182
California
OnTheRocks Offline
OnTheRocks  Offline

Joined: May 2019
Posts: 182
California
If you raise the front end of your vehicle, and support with jack stands, you may not be high enough off the ground. Crawling under, with less than 12", does not allow you to be in a good position, or use longer tools with more leverage. Sometimes, reach and access is limited when you're trying to use power tools. When you have the vehicle up on a lift, you can stand under it. This allows you to plant your feet in a wide stance, get your body behind the tool, or maybe use power tools. Think about an impact tool. You may also need some sort of universal joint to give you the correct angle.

I would also worry about the condition of the threads after you get the drain plug out.








Last edited by OnTheRocks; 05/26/19 01:54 AM.
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