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#1
08-02-2006, 02:47 AM
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what is this and how do i stop it from leaking oil
This port or what ever it is leaks oil and makes a mess. Does it have a seal that can be replaced. It seems impossible to get to on my 1981 30d. See picture
Last edited by ray m; 11-02-2007 at 10:22 PM. 
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#2
08-02-2006, 09:55 AM
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If not mistaken those are plugs.
They don't have seals behind them but they can be replaced. Althought I don't know if they are still available. Louis.
__________________
Not always the smartest but certainly not dumb? 
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#3
08-02-2006, 01:25 PM
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how can i stop it from leaking
How can i stop it from leaking. Is there a special tool used to replace them. What is involved in replaceing it. or can i just spray something over it or epoxy it over. Thanks Ray
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#4
08-02-2006, 01:36 PM
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I can't really tell what that is from the picture, can you post a picture of the leak on your engine?
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine
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#5
08-02-2006, 03:10 PM
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If it is a plug...I have replaced a leaking one on a bmw.
Drill hole ( no metal shavings allowed inside engine!) to insert sheet metal screw. The plug was brass/copper. Grab sheet metal screw w/ all sorts of tools until you find one you can bang outwards. Bang in new one using a big socket as guide.It's the same as the air adjustment screws in carburators...just bigger. If mine leaks, I would clean clean clean and jb weld it.
__________________
82 300D....went to MB heaven 90 350 SDL....excercising con rods
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#6
08-02-2006, 03:37 PM
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Quote:
__________________
Adam Lumsden (83) 300D Vice-President of the MBCA International Stars Section
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#7
08-02-2006, 03:46 PM
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my freeze plug in the same spot is leaking coolant.. but the sucky thing is, the IP is in the way of the plug and to get to it i have to remove the oil filter housing and IP.. all for a 1.25$ part...
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#8
08-02-2006, 05:24 PM
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I don't believe that there is any plug in that location that will leak oil. Check the valve cover gasket and see if it's running off the side of the head and down to that location.
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#9
08-02-2006, 08:05 PM
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If that leak is behind the power steering pump to the rear left of pump on motor block and goes into block from the top of engine, I believe someone on this forum has called it an oil pump inspection hole. Mine has leaked for ever and I thought someday I might try to tap a freeze plug in there over the bolt to stop the leak.
__________________
1981 240d Newport,RI
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#10
08-03-2006, 12:46 AM
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on the side of the block
it is on the block behind the PS pump across from the IP. valve cover gasket is brand new with no leaks. Does any one else agree with the suggestion clean it good and jb-weld it. If not please tell me why. I'll need to know. I don,t want to mess anything up. Ray
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