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#1
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stripped oil drain plug bolt head
1990 350 SDL... socket would not budge oil drain plug... previous owner must have used air wrench on it. I figured I would just use vise grips and replace the drain plug. But even with vise grips I couldn't budge it. Now it is really total stripped. A friend suggested I heat it with a torch for a few minutes and try vice grips again. If that doesn't work, Suggestions?
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#2
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Quote:
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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? As long as they would add one additional commandment for you to keep thy religion to thyself. George Carlin (Wonder where he is now..) 1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won. pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt. |
#3
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Maybe the Sears tool they talk about in this thread would help.
http://www.peachparts.com/shopforum/showthread.php?t=205136 |
#4
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Lock the vise grips
Lock the vise grips tight and tap with a hammer. Keep tapping medium hard and alot sometimes the impact action will break it loose.
I have done this a couple of times with success and only done light damage to myself and tools.
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1985 300tdt 238,000 2005 Sprinter Westfalia 15,000 2006 Cannondale System Six 10,000 |
#5
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You want to use a torch to get the OIL DRAIN PLUG bolt "cherry red"? I think you may be overlooking something...Whats wrong with this picture?
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98 Dodge-Cummins pickup (123k) 13 GLK250 (135k) 06 E320CDI (323K) 16 C300 (62K) 82 300GD Gelaendewagen (54K) |
#6
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He forgot to suggest that you get it on video.
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#7
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I actually had a problem with this on mine, and we've always changed our own. I can't figure why but once time it locked up so tight it nearly stripped. Solved it by cracking that pan and replacing it all at once.
In your situation, the sears easy-out might do it. If not, then drilling (with or without torching) is your best bet. If you clean it off VERY carefully... like, not a drop of oil that could possibly burn, you might safely torch it... but it's a steel bolt and an aluminum threaded pan, which means that if you did torch it, my guess is the aluminum threads would probably deform around the bolt before the bolt itself was workable. Cherry red isn't a great idea. If you wanted to just heat it up slightly it might make it easier to turn with the vise-grip and hammer approach. |
#8
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First suck the oil out of the dipstick. Then make sure the oil pan is dry and not covered with oil. Pop a set of vise grips on what is left of the head of the plug, and hit the pan with a torch. It will come right out.
Go to your local dealer and get a new one, put the new one in just tight enough to crush the washer for a good seal. All you should need for this is a 13mm open end wrench. These plugs have a lot of threads, you just need to tighten them slightly past hand tight.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#9
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If it is really tight, and not leaking, I think I'd be tempted to just leave it in there, and just suck the oil out of the dipstick (which is what I do) and not mess with it.
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1983 300D (Hans) |
#10
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What engine is it? If its easy to take the pan off, that'd be a good idea...
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Ich liebe meine Autos! 1991 Mercedes-Benz 560SEL | Megasquirt MS3-Pro | 722.6 transmission w/ AMG paddles | Feind Motorsports Sway Bar | Stinger VIP Radar | AntiLaser Priority | PLX Wideband O2 | 150A Alternator | Cat Delete 1981 Mercedes-Benz 300SD | Blown engine, rebuilding someday... 1981 Mercedes-Benz 300SD | Rear ended, retired in garage. 2009 Yamaha AR230HO | Das Boot Excessive speeding? It ain't excessive till I redline! |
#11
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Quote:
If it was a 617, and I'd probably drop the pan just to take a look at everything, the lower pan looks pretty simple to do.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#12
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Just a thought about torching. If you have shop facilities, consider using a brazing tip on your torch. With a # 3 tip you can heat just the center of the nut. Heat it up (not red) and let it cool down, do that 4 time and you should be
able to turn it without damaging the pan. This method works in a lot of other areas. Constantine |
#13
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Quote:
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#14
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If that doesn't work get a short piece of all thread (mild steel) which is not heat treated. Weld the thread onto the drain bolt and then put a nut on the all thread and weld it from the top so you can get a socket wrench on it...
Constantine |
#15
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..........if that doesn't work........you'll have the fire department over for a few beers..........
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