Oil pan drain bolt fubared...options, pls?
#1393439
02/25/13 04:53 PM
02/25/13 04:53 PM
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Joined: Jan 2013
Posts: 77
Louisiana
rnch
OP
member
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OP
member
Joined: Jan 2013
Posts: 77
Louisiana
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I FINALLY got around to doing an oil change on my new (for me, anyway) '85 pick up, 318 engine. It needed it!! The oil was thick & filthy. After crawking under the truck, I discovered why the oil was so dirty. The oil pan drain bolt is ALL buggered up, rounded off, and quite solidly stuck. Any/all wrenches and vice grips I can find will not budge this stuck, rounded off bolt. What are my options here? Can I center punch it into the pan,tap and thread an oversized one? If so, will the partial bolt inside the oil pan make some trouble? Or should I find a used oil pan and swap it out? Your thoughts and opinions, please. 
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Re: Oil pan drain bolt fubared...options, pls?
[Re: rnch]
#1393440
02/25/13 05:29 PM
02/25/13 05:29 PM
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Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY
Truck Nut
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Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
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If your good with a drill do it and tap it for a 1/8 (IIRC) plug.
I am truckless..
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Re: Oil pan drain bolt fubared...options, pls?
[Re: 340SHORTY]
#1393441
02/25/13 05:47 PM
02/25/13 05:47 PM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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find a big nut that the rounded off part of drain plug fits into then plug weld them together. the heat should help unstick the plug so it can back out and be reused...just a big azz wrench/socket is needed next time.  no  on the pan or pulg as it is only a thin nut tack weld to the inside of pan. they make re-threder plug for drain hole repair when the threds are shot but of no help for you at the moment. you are just stuck and rounded off. if no welder the try a lot of heat and spay it with blaster to cool it down,that should suck some blaster into it to free up the threds. good luck 
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Re: Oil pan drain bolt fubared...options, pls?
[Re: 340SHORTY]
#1393445
02/25/13 11:33 PM
02/25/13 11:33 PM
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Joined: Jan 2003
Posts: 10,538
Freeport IL USA
poorboy
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,538
Freeport IL USA
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If the oil is really nasty, I would be a little concerned about putting much heat on the pan, I've seen the oil inside of them start burning, not pretty!
I would plan on replacing the pan, likely, if the drain plug is in that tight, it will break the thread nut loose inside the pan when it comes loose, or as your trying to repair the threads.
Good luck. Gene
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Re: Oil pan drain bolt fubared...options, pls?
[Re: tmef]
#1393448
02/26/13 08:08 AM
02/26/13 08:08 AM
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Joined: Jan 2006
Posts: 8,162
USA
360view
Moparts resident spammer
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Moparts resident spammer
Joined: Jan 2006
Posts: 8,162
USA
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bolt grip extractors, run the engine to warm the oil warm the female threads of the tack welded nut further with one or two soldering irons held against it on either side, but chill the rounded off bolt head with either a chunk of dry ice, or this http://www.amazon.com/CRC-05002-Freeze-Off-Super-Penetrant/dp/B000TFTH00if you cant locally find the Freeze off spray or dry ice ( call supermarkets or welding supplies) then go to the drugstores and get the wart freezing kits if any friends work at science departments at universities ask if they can bring you a thermos jug of liquid nitrogen hot female threads + chilled male threads + grip extractor sockets
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Re: Oil pan drain bolt fubared...options, pls?
[Re: VL21]
#1393451
02/27/13 12:06 AM
02/27/13 12:06 AM
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Joined: Jan 2003
Posts: 12,043
State of Confusion
hp383
Just a normal tag again
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Just a normal tag again
Joined: Jan 2003
Posts: 12,043
State of Confusion
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Quote:
Quote:
Use a small pipe wrench or grind/file a couple flat spots and give it a go again.
I have a wrench I found in a junker, it has a movable,spring loaded jaw, works sort of like a pipe wrench, the harder you pull the tighter it gets ... if there is any amount sticking out from the pan face, I am sure this thing would get it.
Is it the Magic Wrench?
http://www.youtube.com/watch?v=2YunlTrBjYI
I have (or had) one similar to this that came in really handy for trailer balls, and other large, or odd shaped items. It would grip better than a vice grip, and still allowed a ratcheting type action for loosening or tightening. 
Join the Penguin Liberation Front!!
Stop the Hippo Occupation!
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Re: Oil pan drain bolt fubared...options, pls?
[Re: hp383]
#1393452
02/27/13 09:57 PM
02/27/13 09:57 PM
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Joined: Dec 2007
Posts: 1,357
central Florida
VL21
pro stock
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pro stock
Joined: Dec 2007
Posts: 1,357
central Florida
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Quote:
Quote:
Quote:
Use a small pipe wrench or grind/file a couple flat spots and give it a go again.
I have a wrench I found in a junker, it has a movable,spring loaded jaw, works sort of like a pipe wrench, the harder you pull the tighter it gets ... if there is any amount sticking out from the pan face, I am sure this thing would get it.
Is it the Magic Wrench?
It is a Weil, 10" version. At one time I had a larger one, lost it. Custom imported from afar.
Japan
It has saved me several times, and taken a beating. Glad I have it. Goes to the upull everytime now.
Has replaced my small pipe wrench.
I recently found another, much cheesier, sort of looks like something would come in a bicycle tool kit, works on the same principle.
It takes gasoline to interest me.
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Re: Oil pan drain bolt fubared...options, pls?
[Re: VL21]
#1393453
02/28/13 12:07 AM
02/28/13 12:07 AM
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Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
rickstershemi
master
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master
Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
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Quote:
Quote:
Quote:
Quote:
Use a small pipe wrench or grind/file a couple flat spots and give it a go again.
I have a wrench I found in a junker, it has a movable,spring loaded jaw, works sort of like a pipe wrench, the harder you pull the tighter it gets ... if there is any amount sticking out from the pan face, I am sure this thing would get it.
Is it the Magic Wrench?
It is a Weil, 10" version. At one time I had a larger one, lost it. Custom imported from afar.
Japan
It has saved me several times, and taken a beating. Glad I have it. Goes to the upull everytime now.
Has replaced my small pipe wrench.
I recently found another, much cheesier, sort of looks like something would come in a bicycle tool kit, works on the same principle.
you can pick up a more rugged and telescoping version at Home Depot in the plumbing tools section....used for faucets....use mine all the time....nice piece 
Mikes take on welding a large nut to the existing bolt is by far the best way IMHO....been there done that....it WORKS 
Rickster
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Re: Oil pan drain bolt fubared...options, pls?
[Re: VL21]
#1393454
02/28/13 08:15 AM
02/28/13 08:15 AM
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Joined: Jan 2003
Posts: 21,065
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,065
Niles , Ohio
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VL I have one of those also.Mines probally 40 years old.I dont use it a lot but when I do its worth its weight in gold.Some drins Ive removed by using a chisel and hammer.Get it on the flat by the nut head and try to get it off.Sometimes if you try tighting it a bit they will break losse.Rocky
Chrysler Firepower
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LOL Scratchy wants to "SPAY" it.. 
