In a never ending effort to fix the erratic shifting on my SDL (already chased down vac leaks, rebuilt VCV and eliminated BFS and assorted leaking vac stuff) im thinking after reading several threads here and on other places on the web perhaps a superior shift kit may help (i have some flairing and other issues of over revving etc) my question is is there DIY anywhere on cleaning the valve body? my googlefu is failing me as i cant find a specific DIY or pdf of it anywhere. im thinking if i get the superior kit i might as well go over the entire valve body a indy mechanic whos trying to sell me a $2400 rebuilt trans said "cleaning the valve body may be a fix as it cud have clutch material etc clogging it"

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1987 300SDL "Rudolf" 239k 8/10


Gone but not forgotten
-1980 F250 4X4 351C Snowplow "The Beast"
-1976 Caddy Eldo Convertible, in triple red. "Red headed Slut"
-2002 Honda Accord EX-V6 loaded 107k, My first brand new car!


*IM A HORRIBLE SPELLER*

I have read somewhere that you can buy an entire rebuilt Valve Body and use the old one as an exchange. And, the rebuilt Valve Body is supposed to have the updates.

Maybe someone can chime in and give some idea what exactly would be in the Valve Body that needs to be cleand out.

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84 300D, 82 Volvo 244Gl Diesel

my understanding from the indy is that my clutches are worn and all the over revving/slipping wore them more and that particulate that is usually on the bottom of the pan *may* be in the valve body and can be causing the intermitant issues.

i should mention that this "goofy shifting" is experienced after its good and hot and been drive 30-45 mins

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1987 300SDL "Rudolf" 239k 8/10


Gone but not forgotten
-1980 F250 4X4 351C Snowplow "The Beast"
-1976 Caddy Eldo Convertible, in triple red. "Red headed Slut"
-2002 Honda Accord EX-V6 loaded 107k, My first brand new car!


*IM A HORRIBLE SPELLER*

Here is a cheap answer.


Mercedes-Benz 722.3 / 722.4 Automatic Transmission ATSG Rebuild Manual - Softcover
http://www.auto-repair-manuals.com/Mercedes-Benz-722-3-722-4-Automatic-Transmission-ATSG-Rebuild-Manual.html



.

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1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

Some info here, but you need a manual...


I did this a few years ago. It's really not too difficult, once you get the valve body split and track down where all the balls go. Be sure to RTFM and turn the VB over before you split it (don't ask).

There is an amazing amount of crud in there, and I don't care what anybody says, there is no additive made that is going to get in all the nooks and crannies and clean all that silt out.

Rick

Attached Files

722.3 data.pdf (436.0 KB, 1869 views)

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

thanks... printed it out and reading right now...

what do i use to clean it? it dont specify... like what solvent and what can i use to get the crud out without damaging anything

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1987 300SDL "Rudolf" 239k 8/10


Gone but not forgotten
-1980 F250 4X4 351C Snowplow "The Beast"
-1976 Caddy Eldo Convertible, in triple red. "Red headed Slut"
-2002 Honda Accord EX-V6 loaded 107k, My first brand new car!


*IM A HORRIBLE SPELLER*

For the ATSG manual I did a google search. I used this search key: atsg manual 722 filetype:pdf

You may have good luck.

bobo

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92 300D 2.5L OM602 OBK #59

Once you have it split and all the little balls and springs are lying around, use carb or brake cleaner on everything and shoot copious amounts into the valve body cavities and cylinders.

Take pictures...here are some of mine on this old thread...

1992 300D no reverse

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

I prefer MAF cleaner, supposed to be plastic safe.

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Gone to the dark side

- Jeff

Nice talking to you.
The black grit trapped in the oil pan and new filter tells me the clutch disc's are failing fast.

I will duplicate the suggested parts list here when done.