[diesel_mercedes] 722. Tranny Pressure Adjusting

 


Thanx Bill ! .

I knew I'd read this some where a while back, I'll begin collecting the parts and give it a go  soon .

Also to be saved in my Mercedes Service files .

-Nate
LIVE in the world as it is, WORK to make the world as it should be


                                           Bill   wrote:


 

Here is one discussion of method. There may be others.  …Bill in Oregon

http://www.peachparts.com/shopforum/diesel-discussion/190197-w123-modulator-adjustment-diy-measure-right-way.html

 

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[diesel_mercedes] W123 722. Tranny Modulator

 







Thanx Rob ;

I may have to cobble up a pressure testing rig before I do anything else .


-Nate

LIVE in the world as it is, WORK to make the world as it should be
On Tuesday, January 7, 2020, 4:59:23 PM PST, Aleph93 aleph93@ca.rr.com [diesel_mercedes] <diesel_mercedes@yahoogroups.com> wrote:


 

Nate,

Here's a video from Mercedes Source showing the older and newer modulators: https://www.youtube.com/watch?v=gM4KZvwsCW0

Pic of modulator:
https://mercedessource.com/store/7223x-turbo-diesel-transmission-vacuum-modulator-upgrade-green-instructions-available-0

I had to remove the rear tranny mount, and lower the tranny to get access, 2 bolts, pull out, slide new one in, re-bolt and test. I had decent shifts before the last modulator failed, so I didn't do the whole vacuum shift test.

I think my shift is too soft right now, so I'll turn the knob on the modulator this weekend.

Here's some info from the Sun Valley Mercedes Transmissions:

https://www.mercedesdismantlers.com/AutomaticTransmissionInformation.html


Rob

==

On 1/7/20 6:51 AM, Nate vwnate1@yahoo.com [diesel_mercedes] wrote:
Thanx Rob! .

Any chance of a picture of this up graded modulator ? .

Does anyone have detailed info on checking the slushbox internal pressure ? .

1982 240D with first gear start, it takes 30 seconds plus to take up from park and shifts late ~ before I touch anything else I'd like to rig uo a hose and pressure gauge and check / adjust it at speed like Mercedes says to do.....

I have no idea where to tap in for the pressure and the specs to look for, any links would be greatly appreciated .

TIA,

-Nate

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Re: [diesel_mercedes] ATF in the vacuum lines

 

Nate,

Here's a video from Mercedes Source showing the older and newer modulators: https://www.youtube.com/watch?v=gM4KZvwsCW0

Pic of modulator:
https://mercedessource.com/store/7223x-turbo-diesel-transmission-vacuum-modulator-upgrade-green-instructions-available-0

I had to remove the rear tranny mount, and lower the tranny to get access, 2 bolts, pull out, slide new one in, re-bolt and test. I had decent shifts before the last modulator failed, so I didn't do the whole vacuum shift test.

I think my shift is too soft right now, so I'll turn the knob on the modulator this weekend.

Here's some info from the Sun Valley Mercedes Transmissions:

https://www.mercedesdismantlers.com/AutomaticTransmissionInformation.html


Rob

==

On 1/7/20 6:51 AM, Nate vwnate1@yahoo.com [diesel_mercedes] wrote:
Thanx Rob! .

Any chance of a picture of this up graded modulator ? .

Does anyone have detailed info on checking the slushbox internal pressure ? .

1982 240D with first gear start, it takes 30 seconds plus to take up from park and shifts late ~ before I touch anything else I'd like to rig uo a hose and pressure gauge and check / adjust it at speed like Mercedes says to do.....

I have no idea where to tap in for the pressure and the specs to look for, any links would be greatly appreciated .

TIA,

-Nate

__._,_.___
Posted by: Aleph93 <aleph93@ca.rr.com>
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RE: [diesel_mercedes] ATF in the vacuum lines

 

Here is one discussion of method. There may be others.  …Bill in Oregon

http://www.peachparts.com/shopforum/diesel-discussion/190197-w123-modulator-adjustment-diy-measure-right-way.html

 

============================================================

From: diesel_mercedes@yahoogroups.com <diesel_mercedes@yahoogroups.com>
Sent: Tuesday, January 7, 2020 6:52 AM
To: diesel_mercedes@yahoogroups.com; Yahoogroups <126diesel@yahoogroups.com>
Subject: [diesel_mercedes] ATF in the vacuum lines

 

 

Thanx Rob! .

 

Any chance of a picture of this up graded modulator ? .

 

Does anyone have detailed info on checking the slushbox internal pressure ? .

 

1982 240D with first gear start, it takes 30 seconds plus to take up from park and shifts late ~ before I touch anything else I'd like to rig uo a hose and pressure gauge and check / adjust it at speed like Mercedes says to do.....

 

I have no idea where to tap in for the pressure and the specs to look for, any links would be greatly appreciated .

 

TIA,

 

-Nate

__._,_.___
Posted by: <corvallis@peoplepc.com>
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[diesel_mercedes] ATF in the vacuum lines

 

Thanx Rob! .

Any chance of a picture of this up graded modulator ? .

Does anyone have detailed info on checking the slushbox internal pressure ? .

1982 240D with first gear start, it takes 30 seconds plus to take up from park and shifts late ~ before I touch anything else I'd like to rig uo a hose and pressure gauge and check / adjust it at speed like Mercedes says to do.....

I have no idea where to tap in for the pressure and the specs to look for, any links would be greatly appreciated .

TIA,

-Nate

__._,_.___
Posted by: Nate <vwnate1@yahoo.com>
Reply via web post • Reply to sender • Reply to group • Start a New Topic • Messages in this topic (1)

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