(05-02-2011, 04:25 PM)aaa Passenger side right next to where the dipstick goes into the transmission. Define "will work", with what? Probably yes if I'm guessing your car right.

(05-02-2011, 05:18 PM)z!!!

(05-02-2011, 04:25 PM)aaa Passenger side right next to where the dipstick goes into the transmission. Define "will work", with what? Probably yes if I'm guessing your car right.

I have an 84 300D with a bad trans and found an 85 300TD with an assumed good trans

(05-09-2011, 10:26 PM)larsalan are the levers in that 3/2 switch worn down?
http://dieselgiant.com/trannyleverreplace.htm

(05-10-2011, 09:14 AM)winmutt You can just delete all the vac crap on the valve cover.

(05-10-2011, 07:13 PM)larsalan Mine always shifted rough when I would forget to plug the vac lines back into the 3/2 switch. But I guess if you have all that sorted then there is another issue.

(05-12-2011, 10:48 AM)Biohazard From the pictures, it looks like your 3/2 switch is missing from the top of your valve cover. You have the cam part, that is the black plastic piece with the ramps that your throttle rods are connected to. I removed mine from the car in the middle of some other mods/repairs and have had to do some other adjustments.

Now, there is a black plastic line from your transmission pressure modulator that connects to your vacuum modulator on the IP. That needs to stay. The other port on the vacuum modulator needs to have the vacuum-in source from the vacuum pump line. Once that is all plumbed in, you can adjust your vacuum modulator on the IP.

With the engine off, make sure the modulator rod hits the full throttle stop or really close to it (its a little pin). If it is way off, adjust it closer using the threaded part at the bottom of the throttle rod. Once that is set, you can adjust the vacuum. There may be a small white plastic dome shaped cap on the side of the vacuum modulator. It covers the adjuster nut. If there is a cap, carefully remove it. If not, then no worries. This next part is way easier with a helping hand. You also need a vacuum gauge and something to space the adjuster off 10MM from that little pin for the full throttle stop.

MAKE SURE YOU DISCONNECT THE THROTTLE LINKAGE TO THE VACUUM ADJUSTER FOR THIS NEXT STEP!!

Check your vacuum reading from the main vacuum line, where it tee's into the small line. It should be around 20ish InHg at idle. If much lower, check the line to see if it is plugged or getting clogged. Reconnect the vacuum-source line and disconnect the black plastic vacuum line that goes to the transmission and connect your vacuum gauge to its port on the vacuum modulator. With the engine running at idle, use your spacer to hold the vacuum modulator lever 10mm from full throttle. You should have 10-15 InHg on your gauge. With the vacuum modulator at the full throttle stop, you should have 0-2 InHg on your gauge. You are more concerned with the 10mm position though at this point. With the engine idling and the 10mm spacer holding the vacuum modulator lever, loosen the lock nut and adjust the inner rod. This adjustment is a pain, is somewhat easier with a 2nd person, and should not be rushed. A little bit goes a long way on adjusting the inner rod. It's also a pain to get it set correctly and not have it move all over while the engine is idling and vibrating. Once you have the 10-15 InHg set, recheck the full throttle reading. At this point, you can turn off the engine and reconnect everything. Take it for a drive and see how it feels. If it feels ok, then you are done! If not, then you can readjust the vacuum modulator or take it a step further and adjust the transmission pressure modulator. Mine was ok with just the vacuum adjustment. The Bowden cable on mine is set to have just about 2mm of slack at closed throttle.

(05-22-2011, 07:38 PM)Hercules I was paid to do these adjustments for good many years.Little bit of a short cut. Adj.vac.control valve to 9" vac,adj.trans. mod.to firm shift,adj. bowden cable 1/2 ball short at idle position.Cable adj.per mbz.May need to fudge up or down small amount on all adj.but has always been very close. Thanks Biohazard for typing all that!