G'day Folks,


About a year ago I bought a 722.303 for not very much money. I found it whilst looking for parts for my 722.118 which has now been rebuilt (http://www.peachparts.com/shopforum/diesel-discussion/304903-722-118-automatic-transmission-rebuild-monster-diy.html). The 722.303 was sold to me “for spares” and I got it on a whim thinking that I might be able to do something with it.


I've talked about this 722.3 transmission that has been sitting my garage for quite some time now – finally this weekend I got some time off for good behaviour; so I started a strip down to see what is wrong with it. I've found a few pretty expensive to fix problems with it, so at the moment I'm not sure if I'll be carrying on with the rebuild just yet. If, however, I win the lottery, or some non existent rich uncle leaves me some dosh, or someone donates the parts(!) I'll carry on with the rebuild ASAP!


Unlike the 722.1 transmission the information for the 722.3 is readily available so this time I'm not doing an in-depth write up like I did for the 722.118 (see link above). It takes too long and it isn't worth while. This time I'm just doing pictures and a few comments.


Please JOIN IN with the thread – ask questions – request information – I'll do what I can to make this thread a good one but if I can get some help this time I'll be a happy chap.


To find more information about the 722.3 the following links might be of help


http://www.ganzeboom.net/images1/ganzeboom/parts/Mercedes/722.3,%20722.4.pdf

http://www.peachparts.com/shopforum/mercedes-parts-reference-library/273540-transmission-722-303-general-service-parts-list.html

http://www.peachparts.com/shopforum/mercedes-parts-reference-library/317111-transmission-722317-02-951413-general-service-parts-list.html

http://www.peachparts.com/shopforum/tech-help/308281-help-stuck-road-722-3-no-3rd-4th-gear.html

http://www.peachparts.com/shopforum/tech-help/278442-94-e320-transmission-rebuild.html

http://www.peachparts.com/shopforum/general-information/319957-722-315-pump-re-seal-pictures.html

http://www.peachparts.com/shopforum/diesel-discussion/311766-trans-failure-question.html

Good pictures in this thread

http://www.peachparts.com/shopforum/diesel-discussion/307031-91-300d-trans-stuck-1st-gear.html


I encourage everyone who wants / needs to take their transmission to bits to read the ATSG manual (which can be found quite easily). If you can get hold of the German version W123 / W126 FSM on CD you'll find loads of great pictures and a very detailed description of the procedures you need to do. You do need to speak German though or cut and paste information into an on-line translator and then work out what the %#$&**% it should really mean! The best thing about the German version of the FSM is that is contains tuning data that YOU WILL NEED when you get the transmission back in the car.


Please note - I've posted this thread in DD because the 722.303 is for a 300SD and a W123.193 300TD. As I go through the strip down I'll be pointing to the parts (if any) that are uniquely “diesel”.


If you want more information about which transmission went where at the factory I've been slowly compiling that kind of information here.


http://www.peachparts.com/shopforum/general-information/311136-fsm-epc-data-%3D-chassis-model-transmission-drive-train-information.html


One last comment before the thread begins proper – my reason for starting this thread, for making the effort (again) is to try and encourage you all to fix your transmissions. When you start they are a really daunting DIY but honestly after your first transmission you'll be thinking – just like me - “what's all the fuss about? They are easy to do!” I feel that I'm approaching the stage where they're getting a bit boring now...


...so come on if I can do you it – you can do it too!

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!