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  #1  
Old 08-26-2016, 07:29 AM
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722.605 overhaul

Next year I'd like to buy a newer low mileage trans,to remove guts,and put into to mine.Mine is a 722.605,I saw somewhere where a guy used a w220 trans to do that.I wonder if the Chrysler Mopar Nag 1s are really in fact 722.6xxs. If so can I use one of them,as they might be more of them?My trrans is fine,but I like to make it new,with my newer engine.

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Old 08-27-2016, 07:21 AM
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well it seems the only difference is the convertors.They also sell high performance clutches,that are thicker.
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  #3  
Old 08-27-2016, 10:07 PM
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The size of the planetary carriers and resultant gear ratios can be different, and a stock module wont be happy if you mis-match.
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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE
104.980
Milled & ported head, 10.3:1 compression
197 intake cam w/20 advancer
Tuned CIS ECU
4 ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff
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  #4  
Old 08-28-2016, 06:35 AM
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so what trans should I look for? 722.609?One from chrysler 300 v6?
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  #5  
Old 08-28-2016, 11:35 AM
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Any of the W5A330 should interchange. I wouldn't open one up and reassemble it with the old sprags.
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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE
104.980
Milled & ported head, 10.3:1 compression
197 intake cam w/20 advancer
Tuned CIS ECU
4 ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff
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  #6  
Old 08-28-2016, 12:49 PM
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Join Date: Nov 2008
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I see alot of low mileage 722.605s but I'd be concerned about seals and gaskets.these trans are to expensive from sun valley
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  #7  
Old 08-29-2016, 01:58 PM
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Join Date: May 2012
Location: El Dorado Hills, CA, USA
Posts: 418
Nathan,

I wrote about it on the W140 Benzworld forum, yet it has worked fine on V12 and V8 engines. I have never done it on a I6, and cannot say how many pinion gears W140 M104 722.6 equipped cars uses? As the M112(V6) use three,the V8/V12 use four, so in my book it is a matter of comparing the front and rear replacements shafts in the transmission of your car to the different flavors of the W220 or the +2000 W210, and again I do not know how many pinions it has(I6 722.6 cars).

I used at minimum the rebuild kits from many suppliers, and they work well. They are around $200, but the ideal is to use Borg Warner machined frictions or Mercedes frictions not the stamped frictions in the kits. You will need a new Bonded front piston, two new updated sprags.I use CVC torque converters as they use Sonnax parts in them.

The wisest thing is to get the re-builders manual on the 722.6, and look at some YouTubes.

New revised 722.6 service manual - get it while can - Mercedes-Benz Forum

You want to replace all the seals...

Martin
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  #8  
Old 08-29-2016, 02:04 PM
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Location: bristol,tn
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what are sprags? I see rebuilt valve bodies for sale $500.Are they needed too. I have had problem for 4 years now.When my engine is between 50c and 70c the rpm will rise up and down 200 rpms when giving light throttle,til she's warm.I think its a solenoid.They ****ed up the log in at Benzworld so I don't use it much now.
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  #9  
Old 08-29-2016, 10:05 PM
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Location: El Dorado Hills, CA, USA
Posts: 418
Sprags are on direction bearings-meaning they freely rotate one direction and the other direction they lock hard, but the 90's 722.6's have a 9-element(or so), and the +2000 722.6 have like 12 to 14 element(or so).Then the third-generation of the 722.6 has a larger sprag. There are two sprags most people lose the first one(if they lose a sprag), and the physical worst case symptom is the tranny slips to neutral to after third gear..

That raise in RPM is common on the 722.6, and you could need a new regulation spring, and new valvebody shift sleave(s) which I'm assuming it is 2-3 shift, but this may be masked by slipping front sprag too.

Regulating Pressure Control Valve Spring - 68942-01 - Sonnax


This a whole kit for all the shifts valves

Master Overlap Control Valve Sleeve Kit - 68942-05K - Sonnax

I think you have a 98 or 99 car. I cannot remember, but you could swap the valvebody on a +2000 car(any engine-even from a Chysler, or jeep) with yours. The transmission computer(TCM) of 98's and 99's should work with no problem..

My 98 S500 has a 2004 W220 S430 100,000mile internals. I did not change frictions, nor did I changed the sprags. I did it to prove the concept, and works fine. I have loged 30,000 miles since I did it, and I have the 2004 valve body in my 98 with a 98 TCM(my TCM has a 97 date code.). All I changed were all the seals from a TransTech $100 kit from R/O/C/K/A/U/T/O. I did put a rebuilt $200 CVC torque converter.

Martin

Make a new screen name, or email this person:

http://www.benzworld.org/forums/w140-s-class/2652738-log-benzworld-another-way.html

or

http://www.benzworld.org/forums/w140-s-class/2687202-trouble-logging.html

Download the atsg manual from post 7
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  #10  
Old 08-29-2016, 10:07 PM
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Location: El Dorado Hills, CA, USA
Posts: 418
~~

Last edited by MAVA; 08-30-2016 at 06:15 PM.
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  #11  
Old 08-30-2016, 05:27 AM
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thanks
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  #12  
Old 08-30-2016, 06:16 PM
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You are welcome, download those manuals..
martin

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