Bendix cruise control

[Ralph L. Fullenwider]

Glen:

The PT high idle starts at a switch on the dash, this applies power to an
Allenair valve under the Coach near the front up inside the frame rail. The
Allenair valve is a metered type valve and drops the psi from 120 to a
controlled out put that goes to a silver cylinder about 6 inches long
located to the left of center when your in back facing the engine. That
cylinder can be adjusted for the right high idle rpm's. With the age on
these units, the plunger on the cylinder or the clevis it pushes may be
worn, you just have to have a look at it.

Safe travels,

Ralph and Charolette Fullenwider
84FC35 "Ruff Diamond"
Duncan, Oklahoma

At 08:36 AM 1/13/2008 +0000, you wrote:
>Ralph,
>
>Thanks for posting the files. I have been looking for documentation on
>the bendix control system. My cruise control is working great, but my
>high idle switch goes to max throttle when activated. I have had
>suggested that I need additional return springs on the throttle, but I
>have not had a chance to investigate. However, having the bendix files
>will give me some great reading material.
>
>I saw in another post you made following this one that on the PT the
>high idle has a separate control system and does not used the bendix.
>Do you have any information on the high idle system or is it contained
>in the air throttle write up?
>
>I'm headed for the air throttle write up now....
>
>Thanks for continuing to share your knowledge and experience.
>
>Glenn Allen
>1986 PT-40
>Marietta, GA
>