I did a search and could not find what was a definitive answer to my question.

I have an '81 240D auto and it shifts 1st and 2nd normally. Then at the proper time shifts to 3rd, stays for a second, and on to 4th.

The bowden cable seems like it adjusts the shifting on all gears, I'm having problems only with 3rd to 4th. Would adjusting the bowden cable then change 1st to 2nd as well?

The K-1 spring - I read some posts that said it fixed similar problems others were having and some said it had no effect at all.

Am I missing something in thse posts that the more experienced can extract?

__________________
1981 240D, Auto Trans, 160k miles -- CRASHED!

my wifes 240 has the same problem. the indy wants to replace the vacuum valve(the white thing on the left side, rear of the engine) and the two(or is it one ?) three way vacuum valves on the valve cover. we already have replaced the modulator on the trans.

__________________
currently
[1981 300 td tdidi 165500 dark brown/palamino-Brownie-mine-3k miles of ownership
1983 240d 162+++ Anthricite grey w/ henna red interior and hella lights-wifes car-Red

the above two cars are for sale
and can be seen on the cars for sale thread here. pix also available.


240d-144+ Manilla Yellow w/ palmino interior-greasecar kit-Blondie-the college kids car

23" gt 21 speed still on original tires-still got the nubs
21" khs tandem

K-1 spring kit cures a sluggish 2-3 shift....the 3-4 shift is a B-2 piston issue...if it does it every gear you have way too much vacuum at the modulator...

__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

BHD - I only get the quick shift from 3rd to 4th. Is the B-2 pison a major fix that Indy needs to do or is it something I can easly do in the driveway?

__________________
1981 240D, Auto Trans, 160k miles -- CRASHED!

is it a quick shift or a sluggish shift? quick hard shift is too little vacuum at the modulator.. The K-1 springs kit fixes a slow 2-3 shift...the B-2 cures a slow or non-existant 3-4 shift...

__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

BHD - The shift is quick, but suttle. I can tell the shift occured by listening to the RPM and resulting loss of pick up from being in 4th too soon.

__________________
1981 240D, Auto Trans, 160k miles -- CRASHED!

this must be the 722.1, right? how does this unit vary from the 722.3? In that unit, the 3-4 shift occurs when the B2 band disengages and the K2 applies while K2 remains applied and B1 remains disengaged.

__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.