1968 Chrysler Newport Auto Pilot / Cruise Control Servos

[Bigasawhale2]

Hello,

I am trying to figure out 1968 Newport Auto Pilot Servo - system

The FSM – shows the Imperial system in accerrories section, and in the electrical section shows what must have been used in Newport's.

The next best reference I have is a 1969 B Body set up – which outlines the 2 vacuum line servo system in following picture. This is the picture of servo in '69 manual – has 2 Vacuum ports on the same side:

The unit I bought as NOS –many years ago…Has vacuum ports on 2 sides, but on different sides.

Hopefully the pictures attached ok

Does anybody recognize it - the second servo ?

Testing units servos:
Vacuum load from engine held at a constant level, with the brake port closed, open the brake port – vacuum should go to atmosphere
Is this the right way to go about it ?

Thanks

 

[69 300 vert]

I believe what you have is the 1970 and newer servo. It has no brake switch vent, electrical brake release only. I'm pretty sure what you've pointed out is the release vent for the newer units.

 

[cbarge]

The 68 Cruise control for C bodies is a one year only design and was horrible.
Worse then the electro-mechanical system the Imperials used.
The 70 and newer system is much simpler and more reliable.
This probably did not answer your questions but I hada 68 NYer with cruise and it never worked right.