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  #1  
Old 05-25-2007, 11:45 AM
Chris
 
Join Date: Feb 2005
Location: Minnesota
Posts: 14
124 trans pan gasket leak

The tranmsission pan has leaked on my 92 400E. I started out with a normal torque of the 6 bolts and it leaked in the passenger rear side of the pan near the drain hole. I then torqued it to about 15ft lbs and it gushed out fast. I purchased a new gasket and the dealer says that it will split above 13 ft lbs.
He was spot on the gasket split. The new gasket was installed with about 7-8 ft lbs which is a bit more than the spec of 6 ft. lbs. It still leaks a little.
My best guess is that the pan must be distorted and I need to replace the pan. Any thoghts? Thanks in advance for input.

Chris

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  #2  
Old 05-25-2007, 03:19 PM
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Location: DFW / Collin County Texas
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Take the pan off and straighten it with a rubber mallet and block of wood. There must be ZERO distortion otherwise there will be leaks. Distortion can occur from overtightening, but also from uneven tightening.
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  #3  
Old 05-25-2007, 06:28 PM
ozawa's Avatar
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replace the pan. with that style of pan, the "ears" at the corners get distorted (usually from overtightening,) which makes it next to impossible to seal. i wouldn't even try to make it true again. i've tried in the past and it was nothing if not frustrating and i ended up getting a new pan anyway...
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  #4  
Old 05-25-2007, 06:34 PM
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I think ozawa is probably right. Sometimes straightening the pan is just an exercise in frustration, albeit a very time consuming and messy one. Go for a new pan and you won't be sorry.
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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280
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  #5  
Old 05-30-2007, 12:08 PM
Chris
 
Join Date: Feb 2005
Location: Minnesota
Posts: 14
It seams that the leak has subsided. But if it returns I will get a new pan.
Thanks for the great advice, reducing ones frustration is always greatly appreciated.

Chris

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