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#1
10-23-2006, 02:20 PM
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The sad story of a transmission service
My transmission has been having problems with 4th gear (automatic).
It doesn't hold very much pressure. I can use it down hills, but any acceleration otherwise causes it to rev. I decided to do a tranny service to make it shift better in the cold and as well in hopes that I could make the 4th gear problem better. Fat chance. So I drained the fluid (black) and took off the pan (old 4 bolt tranny). Success. Look in the pan to find several shards of metal and lots of tiny metal slivers. Not so good. As I'm wiping it out I pull out a dark bent object. At one time it was a straight thickish screw. Now it's a bent thickish screw. I also found the shank of another screw (sans head). "well", I thought to myself, "for some reason I don't think I'll get fourth working after all". I didn't have time to take off the other 10+ bolts to get a look at the pistons, and I don't know if it is repairable, so I put it back together. So 4th is still as bad and now I have to re-adjust the transmission thanks to the new filter and fluid changing shifting points and pressure. Other than that it was uneventful. It was easier than I thought after all the trepidation. If anyone has managed to repair a problem like mine though I'd love to hear.
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----------------- 1980 300D 300K KM - parting out 1979 300D 375K KM - parting out 2 300Ds for sale 
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#2
10-23-2006, 04:32 PM
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People here on the forum have rebuilt these automatics. There is a guy in Texas that sells all the parts and has much expertise on them.
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Doug 1987 300TD x 3 2005 E320CDI
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#3
10-23-2006, 05:01 PM
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Parts in the pan is not a good sign.
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1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair 
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#4
10-23-2006, 06:29 PM
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repair?
Tough to want to repair it when I can buy a good replacement for $200CA.
Problem is removing the tranny... Not sure I'm up for the work.
__________________
----------------- 1980 300D 300K KM - parting out 1979 300D 375K KM - parting out 2 300Ds for sale
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#5
10-23-2006, 10:54 PM
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I really didnt think it was that hrd to get the tranny out of these, probably one of the easiest I've ever done I think, well, second, the 96 Bronco was the easiest,lol.
Want a hard one to get out, try a transaxle, like the AXOD in the 90 Continental I sold........had to pull that one twice thanks to the "permanent molded seal overdrive piston which is reusable"....which wasnt...DOH!
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