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#1
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Rounded off Oil Pan Drain Plug
My drain plug has become rounded off and I'm unable to remove it. Any suggestions?
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#2
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Vice Grips.
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html |
#3
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Or tap on a socket of a smaller size.....done this a couple times...
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#4
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I tried that it just rounded more. If i had a welder i would weld a nut on the end
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#5
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Time to buy a suction tank.
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#6
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x2 on the vice grips.
and have a new drain plug and washer in hand. i usually order a few spares when i get filters, etc. |
#7
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Irwin Bolt Outs or some similar designed damaged nut/bolt remover tools?
Bolt Extractors - Screw & Bolt Extractors - Tools - IRWIN TOOLS |
#8
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You need the Vice Grips with the rounded pinchers.
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html |
#9
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X2 on the Irwin bolt extractors. Used them all the time at the shop. Rounded nuts and bolts that looked like a damn beaver had chewed on them, and they cane right out.
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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it! '85 190D 2.2 Auto *Cali* (Blue/Blue) *sold* http://badges.fuelly.com/images/sig-us/302601.png http://i959.photobucket.com/albums/a...0/sideview.png |
#10
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I hope this doesn't sound insulting (not meant to be) but remember "righty tighty, lefty loosey". As a former plumber I can also recommend a good ol'-fashioned pipe wrench. They get tighter the harder you pull on them so the plug WILL come out with enough pull.
Vice Grips often work but there is a limited amount of "squeeze" you can apply with them. Good Luck! Dan |
#11
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I have the same situation on my '97 E 300 D, which came very rounded off. I also have a new drain plug, but, I have reefed on it as much as I am comfortable with. I am afraid I will end up with no threads in the pan. So about 7 years ago I resorted to sucking the oil out with a Topsider. Now I would not use the drain plug if it worked.
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'97 E 300 D |
#12
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Don't worry about stripping the threads. Just tap the hole to the next NPT (National Pipe Thread) oversize (probably 1/2 in most cases). You'll need a tapered pipe tap but they're commonly available. I use a brass plug so it won't seize in the hole. I've done a ton of 'em and it works great.
Dan |
#13
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Vice grips for sure... a while back I grabbed these on sale. You can clamp them on, then twist them down tighter with a screw driver through the clamping bolt... I have ez-outs and the like, but why use the right tool for the right job if you don't have to?
Also, nothing but box end wrenches on oil plugs. That wasn't obvious to me for way too many years. |
#14
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As another poster said, use a topsider oil extractor. Saves a lot of mess and aggravation in dealing with the drain plug.
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96 E300d |
#15
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+1 on the oil extractor. Those are awesome
If that's not an option then I'll +1 the pipe wrench option. Remember to use a new copper or aluminum gasket on the new drain plug and find and heed the torque spec |
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