Detroit 6V92 High Idle

[Ralph L. Fullenwider]

Hi Dennis:

Your high idle and cruise are separate systems. Since your rpm's are
increasing, it sounds like the transducer in the rear is loose.

Open the engine compartment and while facing the 6v on your peft side of
the engine, up high on the side of a grey/silver box, you should see a
round cylinder about the size of your finger and it will be partially
behind the turbo exhaust tube. That is the transducer at the end run of the
high idle. See if it is loose. If it is, start the Coach and adjust for the
proper high idle rpm (between 750 and 1000 rpm?) Inside the transducer (
small cylinder) is a plunger that goes in against a bell crank to raise the
rpm's, that bell crank and or plunger can and does get worn.

Safe travels,

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

At 01:37 AM 1/25/2008 +0000, you wrote:
>Hi everybody. I been here a long time but just read, generally. Been
>runnin' Birds since '94, on our 3rd now, an '83 PT35 that we've had
>for a little over 11 years. My high idle doesn't seem to want to kick
>in when I throw the switch. It over-rides the foot throttle, as
>normal, but only increases rpm by maybe 50. Definitely not normal.
>When High Idle is off the foot throttle seems normal. Since I live in
>NV I never use the cruise and, as far as I know, all of the original
>parts are still in the system. Could that be part of the problem?
> Dennis Davis
>
> '83 PT35
> Las Vegas, NV
> "LOONEYBIN"
>
>
>