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Oil Pan Drain plug nut rounded off

 
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  #1 (permalink)  
Old 30 Dec 2014, 06:34 pm
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Angry Oil Pan Drain plug nut rounded off

My 2004 PT Cruiser we bought about 5 months ago and was gonna do the first oil change on it, we we get under the car to find the bolt to drain the oil is rounded off, so we got these sockets that will work on rusted and rounded off bolts so we tried it and that bolt ain't moving, we have a extended socket wrench and we used both hands still nothing, we even hammered on the socket wrench to try and bust the bolt seal loose still nothing. Any ideas for us other then the ones we tried?? We don't really want to drill the bolt out and re tap the hole right now too cold outside right now, anything easier then that??

Thanks guys
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Old 30 Dec 2014, 07:07 pm
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Default Re: Oil Pan Drain plug nut rounded off

Put a propane soldering torch on it for a few minutes, then try to crack it.
If that doesn't do it, take a cold chisel and drive that in the direction to loosen.
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Old 30 Dec 2014, 07:15 pm
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Default Re: Oil Pan Drain plug nut rounded off

Quote:
Originally Posted by quicksilverdon View Post
Put a propane soldering torch on it for a few minutes, then try to crack it.
If that doesn't do it, take a cold chisel and drive that in the direction to loosen.
Might be better to use map gas as it burns hotter.
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Old 30 Dec 2014, 07:23 pm
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Default Re: Oil Pan Drain plug nut rounded off

Guys...... not only is that dangerous but the drain plug is steel and the oil pan aluminum. The drain plug will expand at a faster rate than the pan making the situation worse.
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Old 30 Dec 2014, 07:39 pm
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Default Re: Oil Pan Drain plug nut rounded off

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Originally Posted by NitroPT View Post
Guys...... not only is that dangerous but the drain plug is steel and the oil pan aluminum. The drain plug will expand at a faster rate than the pan making the situation worse.
WRONG. Aluminum has a higher coefficient of thermal expansion than steel.
Coefficients of Linear Thermal Expansion

Even if it didn't, or it was a steel bolt in a steel block, the idea is the expansion cracks the corrosive bond that is likely holding the plug in. (which is also likely cross-threaded).
It's a trick I've used and had confirmed by watching American Restoration
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Old 30 Dec 2014, 07:46 pm
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Default Re: Oil Pan Drain plug nut rounded off

Quote:
Originally Posted by quicksilverdon View Post
WRONG. Aluminum has a higher coefficient of thermal expansion than steel.
Coefficients of Linear Thermal Expansion

Even if it didn't, or it was a steel bolt in a steel block, the idea is the expansion cracks the corrosive bond that is likely holding the plug in. (which is also likely cross-threaded).
It's a trick I've used and had confirmed by watching American Restoration
I did not say or mention coefficient Don, and if you think this will work try it on your own PT first and DON"T ADVISE other to do what will end in bad results.
Dd you take in consideration that there is still oil in the pan?


You confirmed your response to work "watching" a video" huh!

HAHAHAHAHAHAHAHAHA!!!
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Old 30 Dec 2014, 08:11 pm
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Default Re: Oil Pan Drain plug nut rounded off

never mind I will just PM another member to help them the proper way!!
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Old 30 Dec 2014, 08:15 pm
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Default Re: Oil Pan Drain plug nut rounded off

PM sent
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Old 30 Dec 2014, 08:30 pm
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Default Re: Oil Pan Drain plug nut rounded off

Just remember: Righty Tighty. Lefty Loosey. lol

It sounds silly, but you would be surprised how many people try to turn the nut the wrong way. Just be sure you are actually trying to loosen it and not inadvertently tightening it instead.
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Old 30 Dec 2014, 08:35 pm
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Default Re: Oil Pan Drain plug nut rounded off

I had the same problem on one of my PT Cruisers and I just warmed up the engine to normal temperatures and it came off easy.
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