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Need part #'s for some 722.3 trans parts
I found this document that suggests one should try replacing a couple transmission valve body parts if there's a reverse problem. Before I pull and embark on a complete overhaul I'd like to try and replace these items.
Here's the doc: http://www.europeantransmissions.com/Bulletin/DTC.merc/97-20.pdf I need part numbers for the following: accumulator switching on control valve & spring accumulator switching on piston I've checked EPC but cannot locate a complete breakdown of the valve body that shows these items and assigns part numbers, if anyone has diagram and part numbers for these I would appreciate it. Thanks Steve A
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Steve A 92 W140 OM603 97 VW Jetta TDI 90 Passat variant TDI 6 speed MT 94 Chevy K1500 6.5TD 05 E320 CDI + others |
#2
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Try jaggi@jie.com
They helped me a lot. made a phone call beak to help me out.
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1984 300SD turbo 126 "My true love" God made me an atheist and who am I to question His wisdom |
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Could you elaborate on the precise nature of your "reverse" problem?
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#4
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no reverse
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Steve A 92 W140 OM603 97 VW Jetta TDI 90 Passat variant TDI 6 speed MT 94 Chevy K1500 6.5TD 05 E320 CDI + others |
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The car has been very slow to engage reverse since I bought it, sometimes taking a couple minutes if it's warm. When cold it would take about 5-10 seconds to engage. When it did engage there was no slipping.
Now however reverse rarely engages, but before I go the route of having the unit overhauled I thought I would look at and try replacing these items in the valve body. The 'no reverse' problem has been written about extensively on the forum, and I suspect that my situation is likely no different from anyone elses, but before I embark on that expensive path I'm going to try this route. Thanks Steve A
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Steve A 92 W140 OM603 97 VW Jetta TDI 90 Passat variant TDI 6 speed MT 94 Chevy K1500 6.5TD 05 E320 CDI + others |
#7
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If the car is out of commission anyway, drop the valve body to check the questionable springs and plungers before you buy parts. That way you can visually confirm replacements from the dealer or wherever you shop. You can also confirm that there aren't chunks of internals and layers of clutch lining sediment in the sump.
Sixto 87 300D |
#8
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Quote:
When I pulled and replaced the filter and gasket in February there wasn't any sediment in the pan, but I wouldn't have expected it with the recent service, but the filter did need to be replaced. Since then the 3-4 flare has vanished but the reverse issue has been persistent, and finally just a couple weeks ago reverse was totally gone. I have a replacement vacuum control valve coming which should solve the forward gear shifting issues so I'll probably wait until that's installed and checked before I dig into the transmission valve body. Once I get that and replace my non-working valve I'll dig into the valve body components. I actually think that you can pull and check these components without pulling the valve body, you can do a K1 replacement without doing it and the accumulator items are at the same level as the K1 IIRC. Steve A
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Steve A 92 W140 OM603 97 VW Jetta TDI 90 Passat variant TDI 6 speed MT 94 Chevy K1500 6.5TD 05 E320 CDI + others |
#9
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You will have to split the valve body to remove the control valve and spring.
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#10
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You are sure it's a 722.3 and not a 722.1, right? The .1 has a reverse band adjustment, not that I really think that's the problem in this case...
Call jaggi- they can help you
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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 (??) |
#11
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On which car? I do not think the '92 in your sig has the 722.3 tranny.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
#12
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That's all I need to know, rebuild time.
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Gone to the dark side - Jeff |
#13
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I tend to agree, not the method I approve of for fluid changes.
Quote:
Quote:
Steve A
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Steve A 92 W140 OM603 97 VW Jetta TDI 90 Passat variant TDI 6 speed MT 94 Chevy K1500 6.5TD 05 E320 CDI + others |
#14
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What about a longer "dogbone" on the reverse band? Anyone tried this?
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Gone to the dark side - Jeff |
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