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+--- Thread: Kick-Down - how does it work? (/showthread.php?tid=4709)
Kick-Down - how does it work? - DiseaselWeasel - 07-07-2013
Hi!
I'm currently scratching my head a little, as the kick-down doesn't work. Well, I'm actually just in the process of fitting the KD/Klima relais. The thing I'm wondering about it this valve (Y3) that I can't find...
The gasser transmission had two vacuume connections. The OM603 turbo transmission has only 1. I can't remember any valve, other than the overboost protection valve (deleted now).
So - where does this ominous Y3 valve go and what does it do?? I have no left-over vacuume connections. Or other connectors on the gearbox (722.357).
OM603.960 from '90. With the blue flying saucer vacuume amplifier.
Thanks for any input!
RE: Kick-Down - how does it work? - DiseaselWeasel - 07-08-2013
In case anybody gives a fook; Y3 is the solenoid on the end of the gearbox. If kick-down switch is activated, it opens up a needle valve for maximum controll pressure. Current for the solenoid passes through the kick-down relais which cuts off current if engine revs are too high and the engine would over-rev in kick-down. Pretty simple.
The valve on the controll cable is for kick-down switch off ('E' mode) on gassers only.
RE: Kick-Down - how does it work? - Simpler=Better - 07-08-2013
(07-08-2013, 06:49 AM)DiseaselWeasel In case anybody gives a fook; Y3 is the solenoid on the end of the gearbox. If kick-down switch is activated, it opens up a needle valve for maximum controll pressure. Current for the solenoid passes through the kick-down relais which cuts off current if engine revs are too high and the engine would over-rev in kick-down. Pretty simple.
The valve on the controll cable is for kick-down switch off ('E' mode) on gassers only.
You're a hero for posting back, someone will use this info even if they don't register and say thanks