722.118 Automatic transmission rebuild (Monster DIY) - Page 3 - PeachParts Mercedes-Benz Forum

Stretch · #1 03-25-2012, 02:58 PM

Quote:

Originally Posted by SD300

I have been able to firm up the shift, but wanna to raise the RPM wen shifting, as shift too early cause the tranny to flare up.
Thanks

It sounds like you'll have to get hold of a copy of the FSM for your car with the shift point data so you can tune the throttle linkage / vacuum / modulator pressure screw. Again I can't really help you with that kind of information if I don't know your transmission type and vehicle type (as in type.chassis for example my 300D is a W123.130 <= it is a W123 (type) with the .130 chassis and sometimes the country in which it was originally sold is necessary)

SD300 · #2 03-26-2012, 11:18 PM

some one told me to look for a linkage ( those mini ball joints set ) on the pass side.
I found it and able to shorten the throttle pos, It did help, still need to tighten up some more.
Is not flaring up now.

Quote:

Originally Posted by Army

It sounds like you'll have to get hold of a copy of the FSM for your car with the shift point data so you can tune the throttle linkage / vacuum / modulator pressure screw. Again I can't really help you with that kind of information if I don't know your transmission type and vehicle type (as in type.chassis for example my 300D is a W123.130 <= it is a W123 (type) with the .130 chassis and sometimes the country in which it was originally sold is necessary)

Stretch · #3 08-14-2012, 04:19 AM

Unlike the English (US) version of the FSM the German version isn't officially available for free via www.startekinfo.com

You can see the CDs for sale on the internet quite frequently. The CD is all you need.

Stretch · #4 08-20-2012, 04:57 AM

Just in case anyone is looking for 722.3(03) related information I've started a new thread on the subject here

722.303 in bits photo shoot

mercmad6.3 · #5 09-23-2012, 08:12 AM

Just to add something here. The valve body bolts are two different lengths!
When undoing them,mark on the ends with typex or similar to indicate the long ones (on the front end of the valve body) .
The B3 adjustor bolts are supposed to be replaced each time they are removed . They come with a 10 mm bolt head which is cut off once the band idle clearance is set and the lock nut tightened.
I have the trans manual in English ,it covers all of these early trans up to 1992 i think. But it's on fische,otherwise I would post it online.

I have been shagging around with one in a 300TD (NA) which is doing something really strange ,it has popped out the rear seal

and seems to have built up pressure in the rear part of the cone housing.
These can be pulled off in the car ,but for the life of me,I cannot see what is going on.

Stretch · #6 09-23-2012, 12:04 PM

Quote:

Originally Posted by mercmad6.3

Just to add something here. The valve body bolts are two different lengths!
When undoing them,mark on the ends with typex or similar to indicate the long ones (on the front end of the valve body) .
The B3 adjustor bolts are supposed to be replaced each time they are removed . They come with a 10 mm bolt head which is cut off once the band idle clearance is set and the lock nut tightened.
I have the trans manual in English ,it covers all of these early trans up to 1992 i think. But it's on fische,otherwise I would post it online.

I have been shagging around with one in a 300TD (NA) which is doing something really strange ,it has popped out the rear seal

and seems to have built up pressure in the rear part of the cone housing.
These can be pulled off in the car ,but for the life of me,I cannot see what is going on.

Thanks for the comments - you are a rare breed - someone who comments about actually taking a 722.1 to bits. Welcome and thanks!.

My gut feeling about your rear seal popping out =>

I would check the clearances of the assembled transmission to make sure that it is all in place. All of the measurements come from the back of the transmission - if that tail cone is out of whack then everything else won't run true. There are several delicate roller bearings in the gearset / attached to the gearset that could be damaged...

(WILD guess time)

...perhaps this is causing a longitudinal shuttling action within the transmission - causing the rear seal to "pop out"?

mercmad6.3 · #7 09-23-2012, 07:31 PM

I found It!! , The secondary pump can be installed incorrectly . It only goes in one way correctly and if the roller piston is 180 degrees out the pressure builds in the cone housing as soon as the trans is put in gear. When it is taken out by undoing the sleeve lock screw, it must either marked with a felt pen or use a very good memory to remind yourself that the sleeve and pump can go two ways but it must be the right way when it goes back. (kick oneselfinass ). I rebuilt mine because I couldn't find a useable 722-118 or even find the correct 300D trans. These have a different valve body to the others which means they must always start in Low. If it starts in second,there is a problem.
Mine has been worked on before. The outer K2 clutch plate in the B2 drum had been installed backwards . It caused 3rd to slip to the point where it stripped all the lining from the plates and warped the plates . I dropped the pan when i got the car and found the circlip in the pan

.
I sdee you used the clutch plates with the grooves. In the later 118 trans you must use the smooth plates in the k2 clutch . The grooved type were for the earlier version where a oil hole in the clutch piston wasn't present. I have no idea what this means to overall running.
The Clutch release springs are no longer available from mercedes, mine had several missing

and the number varies from trans to trans. The forward drum has shorter release springs BTW.
That outer alloy piston in the k2 clutch can only fit one way when reinstalling it. if you look at the teeth in the drum,there are several which are shallower . it pays to prefit this part to see how it fits exactly,then mark it so when it is squashed together against the springs it goes down against the release springs (3 touch it,the rest go past it ) .

Thanks for the write up.

vidal · #8 09-30-2012, 05:59 AM

Bonjour
je suis nouveau sur le forum,j"ai une 722 112
Es que je peut envoyer photo pieces ,joindre adresse ,merçi

vidal · #9 10-01-2012, 08:38 AM

hello
hence to come both piece found in the housing box 722112 during au oil change
do you have a picture of their location thank you

Stretch · #10 10-01-2012, 01:47 PM

Quote:

Originally Posted by vidal

hello
hence to come both piece found in the housing box 722112 during au oil change
do you have a picture of their location thank you

You found that during an oil change?

Weird - how big is it?

whunter · #11 10-19-2012, 12:28 PM

Quote:

Originally Posted by vidal

hello
hence to come both piece found in the housing box 722112 during au oil change
do you have a picture of their location thank you

I hope the translation program functions.

Avez-vous en avant et les marches arrières ?

Quel est le symptôme ?

.

Zacharias · #12 10-19-2012, 01:18 PM

Quote:

Originally Posted by whunter

I hope the translation program functions.

Avez-vous en avant et les marches arrières ?

Quel est le symptôme ?

Not bad

. I use freetranslation.com for German (for eBay.de). Of course I can't tell how well it works...

Vidal : M. Hunter veut demander si la voiture roule normalement maintenant (en avant et recule)?

Aussi, on veut confirmer que vous avez verifié la niveau huile avec la voiture stationné sur une surface vraiment plat.