wonderful. figured as much

thanks for the input

__________________
1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT

Okay buddy, we know the Blue Moon did not screw you up...

I would use the front pump from the second for the first, but.......... Since I rebuild these.

A)I would replace the B2 seal which is real easy to replace-16th picture-the black seal-and the orange seal...

How to Replace Your Oil Cooler Lines

To remove the plate(picture 11). Strattle it your hands around the outside, and push down with your thumbs, but you have to hit it the cover with a rubber mallet to break the seal. Then you push down with your thumbs to expose the ring, so you can pry it off-practice on the old tranny if you like...

Now if you pull off the B2 Piston which is the aluminum with the white seal, and you see the inner sleeve is metal, and not plastic behind the black seal... You really need to replace it as in the link above...

Ahh, inside is a dog bone, note the direction as one side will have one embossed stripe, and the the other end will have two or three ....Cannot put this sucker in backwards-put it in the way you took it out!!!

B) Now you can swap the pump like in the first two pictures of this link-Yes it is a 722.5 -722.3-722.5 is the same with the same part numbers...

722.5 transmission oil pump rebuid DIY - Mercedes-Benz Forum

Here is another wonderful picture process:

722.315 Pump Re-seal pictures

Now I would stand up your transmission, so nothing falls forward inside which it can easily happen.. then you make matters a little worse...

I suggest you replace the outer paper like seal...

Now, and this is a big NOW... the biggest problem with these 722.3-722.5 is they will loose reverse, and it is all because of this stupid small lip-seal that gets brittle hard.., but these lip seals can be a challenge to put in with the lip pointing down in the direction you are inserting them, but what I have used to get a gaurentee placement is to use 3/4" to 1" wide gift wrapping ribbon, or even some 35mm film to place in between as you compress it like picture 5. Now the other problem. crushing the the teflon seals, and for that I clean the shaft, the groove, and the Teflon seals with alcohol, and apply Transmission assembly lube grease-This not petroleum wheel bearing grease as bearing grease can destroy the rubber seals. I think you should be okay with petroleum jelly, but the assembly lube will not melt as easy as the jelly. The Assembly lube is cheap.. like under ten bucks... The transmission assembly lube is to hold the parts together, so in this case you want to hold the teflon wrapped around the shaft because they can get destroyed on assembly...

Life Automotive Products Trans Prep Blue Transmission Assembly Lube | eBay

Now, I would replace the bushing too on the pump...

You are lucky son of gun... In Minneapolis is a "What Ever it takes"( they are in the city of(15 min to 30min away?) Arden Hills- it is WITTRANS.COM). You can get all these parts to this 722.3 and the lube. I cannot link the parts you need, but I have the service manuals, but you would have to PM me, so we can exchange emails, so I can email them to you...

Here is the wittrans location

Torque Converters Distributors Page - Consolidated Vehicle Converters, Remanufacturing Torque Converters for Automatic Transmissions

Here is a drawing of the transmission.

http://www.jpat.co.uk/59%20Mercedes%201B%20722.3%20722.4.pdf

Parts:

The B2 seal Job:

Part: 079 & 364

The swap of pumps Job:

Gasket 310 & 070

The decision to fix reverse, and replace pump bushing job?

310, 070, 034, 311, 2-179(get extras), 338, 339, get a new 879. Now you may have a 985 instead of the flat plate with dimples(like in the oil pump link), and sometimes you may find them cracked. Now, sometimes the PVC coupler can break and bend 985 or the plate with dimples, and I really suggest you get on of these to do the compressing-They are good to rebuild any Benz transmission....-Cheap too...

Transmission Clutch Remover Spring Compressor Kit | eBay

Now you, will need to clean the screw pockets of the pump and the bell housing well with swabs and denatured alcohol, and clean the bolt threads too. All of this so the thread locker grips, and the thread locker is the High-Temp/High vibration type(Not available at your auto parts store). You need LocTite 272. I do a three to four stage torque pattern, and go over by 20%-30% more as these pump bolts are too loose by my standards...

I would seriously replace the rear seal and nut, but the output yoke may have a seal on the inside of the yoke- Parts 074 & 798. The rear nut is a 12 point 30mm get it at Napa..

I made you dangerous, but it is your call...

Too much information

All the best,

Martin

wow, thats more than I expected! I ordered that big o-ring last week already so good to go there

rear seal doesn't leak at all and the trans takes less than an hour to R&R these days so I'll risk that one

really starting to dislike the 722.350. out of three transmissions, one has a working front pump.

__________________
1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT

Hey,

You have be complete in one's answers, I repair peoples problems, so I have be complete... I do not like half-way answers, so I try not to do it either?

All of these 722.3's through 722.5 suffer from reverse and forward(B2 seal or Piston), yet the front bushing usually occurs with M120 cars, or the people that hot-dog their cars around with the 722.3. Now, some 722.3's came with roller bearings for the front bearing... The AMG 722.6, and 722.9's have had this bushing problem... One guy experienced this problem just recently I helped.. It is one of those links I posted on this thread..

Gearbox 722.368 repair manual / tips - Mercedes-Benz Forum

Now, some guys stick second generation 722.6(Touch-Shift +2000) transmission on these old cars as it withstand lots of torque. Verrryyyy Easy to rebuild-excellent for the first time DIY. It is an electronic transmission, but it last a long long time. To put it on a old car a few people make a controller...

http://www.peachparts.com/shopforum/performance-paddock/332843-stand-alone-722-6-tcu.html

I personally like the 722.6-no adjustments with modulators, no dog bones to deal with....
I can rebuild one from start to finish in a day...

More about the 722.6,

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

All the best,

Martin

if this front pump replacement fails to work, I'll be dropping the money to have a custom fltwheel made so I can go back to Manual transmission.

Automatics are just awful things :p

I appreciate the 'whole-measure' reply

__________________
1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT

I under stand.. Hope works... You got the data?

All the best,

Martin

got trans #2 dissasembled. waiting on correct seal now

__________________
1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT