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My 99 Mercedes benz clk320 has an oil leak on the oil pan...can JB Weld be used to seal the oil pan

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As good as JB Weld is, I doubt that it would work in that application. The bad oil pan gasket may still let the oil out and it will travel along the oil pan rail looking for another avenue to drip out onto your floor or driveway. Best solution is to pull the oil pan off and have a new gasket put on. But if you try it, post back and let us know if it works. I would like to know another good use for JB W!

Posted on Jan 03, 2013

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Posted on Jan 02, 2017

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SOURCE: oil leaks

after a period of driveing you have to get oil pan re tighting some times improper installion can keep it leaking also.

Posted on Jul 26, 2008

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SOURCE: Repairing a hole in the oil pan

The problem with welding on the car is that you will NEVER get it clean enough and weld will not hold. Remove pan and clean it, THEN weld it. I usually screw it down to a piece of 3/4" plywood so that it does not warp while welding...also use a wet rag to cool area near weld as you work (at least 3-4 inches from work area)

Posted on Mar 05, 2009

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SOURCE: oil leak in my 98 mazda protege

Could be a rear main seal.

Posted on Feb 01, 2010

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SOURCE: how to change a serpentine belt clk320 2003

just put a socket and rachet on the bolt for the tensioner pulley and move the tensioner to the right to loosen the slack on the belt.

Posted on Oct 01, 2010

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How do I remove the oil pan on my 1986 mercedes benz?.

Hello, You placed this question in the Ford section so I do not know if you will get a Mercedes expert to find you. I can save you a little misery if rust is your problem.

There are chemicals which can end rust when applied to metal. There are also some very good bonding chemicals like JB Weld which can be used to permanently patch a rusthole so removal of the pan will not be required.

If the drain hole is stripped, there are oversized drainplugs which can cut new threads and provide a good seal again.

You can repost to the Mercedes catagory for more help. Contact a Mercedes Dealer about what their Service manual shows for the procedure. Sometimes you need to just turn the crankshaft to get the clearance, others need to partially pull the motor.

I have tried to help and hope my solution is helpful.

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I will try to save you money. If the pan is leaking around the gasket you many be able to tighten it enough to reseal it. There are some products that can seal spot leaks like "Seal-All". It is like a model airplane glue that resists gas and oil.

For rusted pans you can use "JB Weld" This hardens and strengthens what you put it on. You mix it like bondo and it dries quickly. Your pan does not have much pressure in it except from blowby from the pistons.

Unfortunately I have not had to replace a pan on this series of car. Sometimes you need to lift an engine off its mounts and turn the crank to clear the lobes, the oil sump may clear. A quick look at a Chiltons will confirm this repair. Wanted to give you alternatives to pulling the pan so I answered your repair problem. Good Luck on this.

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JB Weld should work, however, I would recommend actually replacing it or bringing it into a shop for a more permanent fix. The JB Weld will probably only work for a short time and you are better off not taking a risk when it comes to oil, since not enough oil can lead to a siezed engine.

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