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Transmission Shop Manual?
Where can one find a shop manual dealing with the trannies on the W123's? I have the FSM on CDROM and I can't find hardly anything dealing with the transmission. I'm looking for adjustment specifications for the vacuum modulator pressure, but also want the whole manual if it's out there.
Thanks!
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Dave 2002 Audi S6 Avant 1983 300D 1984 300D (sold) 1990 560SEL (sold) |
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Quote:
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The Golden Rule 1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later) |
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Yeah the FSM has nothing on these transmissions. The shop that services all the company equipment where my dad works surpisingly has some program that has them! They have every single FSM/TSB for every MB! And everything MB has on the transmissions. I have no idea what its called, its some service they subscribe to that has everything for everything.
If you know someone that owns a big shop they can probably get them.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
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Here's a site that is selling a manual for overhauling Mercedes 722.3 and 722.4 transmission.
http://www.storesonline.com/site/573683/product/83-722-3-4-TM I have no idea if the book it any good. I found it somehow a while back and kind of forgot about it. If someone buys one let us know how the manual is.
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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Thanks for the info. I wish the trans manual came with the FSM.
jbaj007, what exactly do those specs mean? Are there three points on the transmission that can be tested? Modulator Pressure, Working Pressure, and Governor Pressure are three different locations to measure hydraulic pressure? I've set the vacuum leakoff valve to about 4.5 inHg using the 10mm spool piece and have a range of about 12 to 0, but still have a really harsh 3-4 shift and pretty hard between the rest when driving normally. I probably should verify the hydraulic pressure first, then play with the vacuum profile relative to throttle.
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Dave 2002 Audi S6 Avant 1983 300D 1984 300D (sold) 1990 560SEL (sold) |
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biobenz,
Im thinking you probably need to adjust your modulator. There is a test port in front of the modulator that takes I think an M8 hollow screw. I have seen a procedure for adjusting this, I will have to find it. I need to do the exact same thing this weekend. dd
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------------------------------- '85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit) '82 300D, 'Tex', 228k body / 170k engine ... summer car '83 300TD Cali Wagon 210k, wife's car |
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I think RLeo was hosting it on his site about a month ago. You might do a search and see.
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2001 Dodge Ram 2500 Cummins Turbo Diesel - 4x4, auto, 3.54 gears, long bed ------------------------------------- '92 300D 2.5 Turbodiesel - sold '83 300D Turbodiesel - 4 speed manual/2.88 diff - sold '87 300D Turbodiesel - sold '82 300D Turbodiesel - sold |
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That's just the manual tranny FSM.
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Never a dull moment at Berry Hill Farm. |
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Quote:
The ATSG pictures aren't that good and the language is sometimes cryptic.
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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD 1979 300SD 245K miles (never ending project) 2007 Pinarello F3:13 1995 Ducati 916 (SOLD, sniff) 1999 Ducati 900SSie (SOLD) |
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biobenz,
This is worth reading: http://articles.mbz.org/transmission/adjust/ I have a scan of the ATSG page roughly showing the test ports. Not great, but worth a look. Too big for this site's email service, so PM me your email and I'll send it as attachment to you.
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The Golden Rule 1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later) |
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Andrew, you're welcome to take a look at my copy next time your up here in Portland.
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'83 300DTurbo http://badges.fuelly.com/images/smallsig-us/318559.png Broadband: more lies faster. |
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Thanks again for the help. That is enough to test and adjust what I can do myself. I found a website that explains the theory if anyone is interested. It is actually for Toyotas, but a lot of it is probably applicable to ours. It is at www.autoshop101.com under the technical articles menu.
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Dave 2002 Audi S6 Avant 1983 300D 1984 300D (sold) 1990 560SEL (sold) |
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Thanx for the link.....
Quote:
SB
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Diesels: '85 300D, "Max, Blue Benz", 155K, 27.0 MPG '84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG '77 240D (parts car) '67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP) Gassers: '94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG '85 190E 2.3, 148K....Parts Car '58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG |
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Transmission repair manual, 722.3 / 722.4 1981-up
ATSG automatic transmission repair manual, Disassembly, inspection and assembly sections. Diagnosis, testing and lot of pictures Mercedes 772.3/722.4 Transmission found in 1980 and up with 6 bolt pan. $16.50 http://www.bulkpart.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=2&Category_Code=722-3manuals http://web.archive.org/web/20050301193203/business.baylor.edu/Richard_Easley/autofaqs/atcheck.htm http://web.archive.org/web/20050223070652/www.babcox.com/editorial/ic/ic20242.htm
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1999 E300DT (131,800) 154,000 Black on Black SOLD 2006 CLK 500 coupe Capri Blue on Grey (zoom,zoom) 47,000mi 04 VW TDI Passat 80,000mi (Techno) How to eliminate oil dependency through market-driven approaches. “We could cut oil use in half by 2025, and by 2040, oil use could be zero,” The Sound of Diesel Speed Ode to MB |
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