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  #1  
Old 04-22-2002, 11:22 PM
EstebanSPI
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1989 300E Freeze Plug R & R

I have a leaking freeze plug on the right aft portion of my M103 engine.

My plan is to:

1. Drain Cooling System

2. Clean Scale and coolant residue around the plug, cut away any remnants of former sealant.

3. Drill pilot hole in the center of the plug, insert self tapping hex screw.

4. Exert as much leverage as possible to yank the plug.

5. Clean plug area of debris, etc.

6. Insert new freeze plug using appropriate sized socket to press it into hole, using sealant around the outside seam.

Questions:

Is this the correct method to do this, and what type of sealant is recommended to seal around the plug?

Any feedback or guidance is appreciated. This problem has been causing a slow loss of coolant over the last few months, and I want to put a stop to it.

Thanks!

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  #2  
Old 04-23-2002, 04:30 PM
EstebanSPI
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Guess I stumped everybody. Seriously, though, can anyone provide an answer. I searched the archives and there really aren't any prior posts that address this question.
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  #3  
Old 04-23-2002, 09:46 PM
engatwork's Avatar
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Join Date: May 2000
Location: Soperton, Ga. USA
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I don't think you have to drill it. You should just be able to hammer a large screwdriver through it, twist it and work it out.
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  #4  
Old 04-24-2002, 09:15 AM
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The right rear freeze plug is actually a screw in type plug. The rest are pressfit.
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  #5  
Old 02-14-2006, 02:10 PM
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Join Date: Jun 2005
Posts: 53
Quote:
Originally Posted by Cap'n Carageous
The right rear freeze plug is actually a screw in type plug. The rest are pressfit.
interested in what happend about re and re the freeze plug. My plug just
below the intake manifold has also rusted through ('89 300e) and I need to replace it. wondering if it is screw-in or pressfit? Mind you, can't see it being a screw-in type since it doesn't appear to be configured for - pardon me - 'screwing'. That is, it's just a round blank with no way of applying a tool of some kind

cheers, guenter

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