Author Topic: Pulling Transmission and Dyno Testing  (Read 3359 times)

Nate

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  • Mill Valley, California
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Pulling Transmission and Dyno Testing
« on: February 20, 2009, 17:30:37 »
I pulled the automatic transmission out of my 1971 280SL to be dyno tested.  The transmission was operating fine, but I'm finishing up my restoration and decided to have all the mechanicals gone through.

The transmission is at one of the best MBZ transmission shops on the west coast.  Is there anything that I should have them replace while it's off the car, such as seals, switches, etc?  Is there anything that you would not touch if the transmission was operating fine?
1971 280SL
Arabian Gray / Dark Red Leather

2013 Porsche 911 Carrera 4S Coupe
Black on Black

2013 ML350 4MATIC
Arctic White on Almond Beige
Wife's car that I get to drive

1964 Porsche 356C Coupe
Irish Green on Black
Black Plate CA Car
Unrestored

ja17

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Re: Pulling Transmission and Dyno Testing
« Reply #1 on: February 20, 2009, 22:41:03 »
Hello,

Once you start it is hard to find a place to stop.  At the very least, I would replace the front and rear main seals, the filter and pan gasket.

After that all rubber seals, o-rings and gaskets. Once you have gone this far and this deep you will probably not be far from all new clutches being replaced etc, etc.   Complete rebuild?

If yours has the riveted torque converter hub, have them pressure check the unit for leaks.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

Nate

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  • Mill Valley, California
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Re: Pulling Transmission and Dyno Testing
« Reply #2 on: February 25, 2009, 03:47:15 »
Thanks for the suggestions Joe!  I have the solid steel hub, so hopefully everything is in order there.
1971 280SL
Arabian Gray / Dark Red Leather

2013 Porsche 911 Carrera 4S Coupe
Black on Black

2013 ML350 4MATIC
Arctic White on Almond Beige
Wife's car that I get to drive

1964 Porsche 356C Coupe
Irish Green on Black
Black Plate CA Car
Unrestored