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Old 05-10-2007, 08:53 PM
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Tirebiter Tirebiter is offline
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Join Date: Dec 2003
Location: Southern California & Hawaii
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Quote:
Originally Posted by 63lincoln View Post
Hi all! Discovered that on my '82 300SD the oil plug is mostly stripped and unmovable and I will have to take it into a mechanic for replacement.

If I run into unmovable glow plugs can I use a lubricant to get them to loosen?

Thanks!
If I am reading this correctly, your drain plug has it's hex flats rounded off so your wrench can't get a good bite on it. Try using vise grips on it and tapping them with a hammer until the bolt moves. You might even want to heat the pan area around the stuck bolt with a propane torch for 40 to 60 seconds and then try the vice grips. If that fails, try drilling the drain plug dead center and use a large easy out.

I haven't had much luck with soaking the glow plug with penetrant but I have had good results with heating the area around the glow plug with an oxygen acetylene torch for 30 or 40 seconds and using a six flat closed end wrench to get to get them loose. Once clear of the threads a pair of pliers twisting on the glow plug will clear the carbon off.
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1985 300CD
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