Bendix cruise control

[Ralph L. Fullenwider]

Hello everyone:

Earlier today, I put some files in a folder in the files section Concerning
the Bendix Cruise Control. It is split up into 3 PDF files and is as
complete a manual as I have been able to put together over the years. The
Manual not only cover advanced trouble shooting, it covers the dip switch
set up of the control module and the math that addresses the "why" of the
dip switch settings.

Along with these files, I up loaded another PDF file for the 6V and 8V air
throttle systems, as these systems on the PT's incorporate the air
throttle. There is another file section that is the text portion explaining
how the air throttle works and the sequence of operation that I wrote a
couple of years ago.

I hope you find these files helpful.

Oh for those that have not run across it as yet, on the FC's the high idle
is set with the cruise control where the PT's the cruise is not used but a
separate high idle system comes into play.


Safe travels,

Ralph and Charolette Fullenwider
84FC35 "Ruff Diamond" (looking good with new oak floors and captains chairs
up front)
Duncan, Oklahoma

[Ralph L. Fullenwider]

There is no real time adjustment to be made for the delay.


Air, being a gas, compresses then there are mechanical items that the air
interacts on like valves and finally moving the cc-5 cylinder. So the
air, compresses slightly (one place for a delay) then goes through 2 or 3
valves in the process ( another place for delay) and finally the cc-5.
Now then the air starts out at 120 psi then is dropped by a modulator
valve then travels 40 feet (give or take) then through an inversion valve
and the throttle actually depends on the difference between the 120 psi
and 80 to 90 psi at these valve, resulting in your throttle works on 15
to 20 psi of air.


About that only thing one can do, is lube the cable from the cc-5
cylinder to the throttle body and reduce the mechanical drag produced
there.


Safe travels,


Ralph and Charolette Fullenwider

84FC35 "Ruff Diamond"

Duncan, Oklahoma


At 08:04 PM 1/12/2008 -0500, you wrote:

One of
the strangest sensations I had to get use to was the delay I receive on
my air throttle. Can this be adjusted to eliminate the response delay? If
so, how? thanks



Ernie Ekberg

83PT40

Weatherford, Tx

[Richard Hayden]

Almost all of that delay you describe went away on mine when the air throttle cable was removed and cleaned.

Dick Hayden - '87 PT 38 - Lake Stevens, WA

----- Original Message -----

From: "erniecarpet@aol.com"

To: "WanderlodgeForum@yahoogroups.com"

Sent: Saturday, January 12, 2008 6:04 PM

Subject: Re: [WanderlodgeForum] Bendix Cruise Control

One of the strangest sensations I had to get use to was the delay I receive on my air throttle. Can this be adjusted to eliminate the response delay? If so, how? thanks

Ernie Ekberg
83PT40
Weatherford, Tx

---

Start the year off right. Easy ways to stay in shape in the new year.

[Glenn Allen]

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

[pattypape]

HELLO RALPH,


Thank you for posting these precious documents.
But, now I am more confused??????

Our Bendix cruise control works great. It is the high idle
on our FC that is intermittent, It occationally takes off
and really revs up the 3208, So it can not be trusted or used.

One of the troubleshooting tips in the manual is to check the
resistance of the potentiometer in the CC-5.
Well two of the readings show an open circuit and the third reading
is in tolerance.
Do you have any advice on where to check further??

Thanks again for all your posts.

Bill 88 FC Michigan



--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
wrote:
>
> Hello everyone:
>
> Earlier today, I put some files in a folder in the files section
Concerning
> the Bendix Cruise Control. It is split up into 3 PDF files and is
as
> complete a manual as I have been able to put together over the
years. The
> Manual not only cover advanced trouble shooting, it covers the dip
switch
> set up of the control module and the math that addresses the "why"
of the
> dip switch settings.
>
> Along with these files, I up loaded another PDF file for the 6V and
8V air
> throttle systems, as these systems on the PT's incorporate the air
> throttle. There is another file section that is the text portion
explaining
> how the air throttle works and the sequence of operation that I
wrote a
> couple of years ago.
>
> I hope you find these files helpful.
>
> Oh for those that have not run across it as yet, on the FC's the
high idle
> is set with the cruise control where the PT's the cruise is not
used but a
> separate high idle system comes into play.
>
>
> Safe travels,
>
> Ralph and Charolette Fullenwider
> 84FC35 "Ruff Diamond" (looking good with new oak floors and
captains chairs
> up front)
> Duncan, Oklahoma
>

[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
>

[Ralph L. Fullenwider]

Morning Bill:

There are 2 valves mounted on or near the control unit. I would suspect one
of those are sticking from time to time on you for the high idle. Since
your cruise is working the cc-5 is working and that is in drive but when in
N the air should be metered from those valves to the inversion valve and
conversely the cc-5. Back up a step or 2 from the cc-5 and see what you
come up with is where I would start.

Safe travels,

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

At 12:56 PM 1/13/2008 +0000, you wrote:


>HELLO RALPH,
>
>
>Thank you for posting these precious documents.
>But, now I am more confused??????
>
>Our Bendix cruise control works great. It is the high idle
>on our FC that is intermittent, It occationally takes off
>and really revs up the 3208, So it can not be trusted or used.
>
>One of the troubleshooting tips in the manual is to check the
>resistance of the potentiometer in the CC-5.
>Well two of the readings show an open circuit and the third reading
>is in tolerance.
>Do you have any advice on where to check further??
>
>Thanks again for all your posts.
>
>Bill 88 FC Michigan
>
>
>
>--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Hello everyone:
> >
> > Earlier today, I put some files in a folder in the files section
>Concerning
> > the Bendix Cruise Control. It is split up into 3 PDF files and is
>as
> > complete a manual as I have been able to put together over the
>years. The
> > Manual not only cover advanced trouble shooting, it covers the dip
>switch
> > set up of the control module and the math that addresses the "why"
>of the
> > dip switch settings.
> >
> > Along with these files, I up loaded another PDF file for the 6V and
>8V air
> > throttle systems, as these systems on the PT's incorporate the air
> > throttle. There is another file section that is the text portion
>explaining
> > how the air throttle works and the sequence of operation that I
>wrote a
> > couple of years ago.
> >
> > I hope you find these files helpful.
> >
> > Oh for those that have not run across it as yet, on the FC's the
>high idle
> > is set with the cruise control where the PT's the cruise is not
>used but a
> > separate high idle system comes into play.
> >
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > 84FC35 "Ruff Diamond" (looking good with new oak floors and
>captains chairs
> > up front)
> > Duncan, Oklahoma
> >
>

[Richard Gideon]

Morning Ralph & Bill: Is there a way to clean or service those two
solenoid valves? Are the replacements available through Bendix? My
understanding is that these valves are mounted inside the approx 12"X
16" steel case behind the drivers side battery box on the 1988 FC.

Bill...have you removed the throttle cable to clean & lubricate?

Thanks from keeping this CC/fast idle discussion going.

Dick Gideon
Freedom Bird
1989 35FC35
On the Road at Canyon Lake, TX



--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
wrote:
>
> Morning Bill:
>
> There are 2 valves mounted on or near the control unit. I would
suspect one
> of those are sticking from time to time on you for the high idle. Since
> your cruise is working the cc-5 is working and that is in drive but
when in
> N the air should be metered from those valves to the inversion valve
and
> conversely the cc-5. Back up a step or 2 from the cc-5 and see what you
> come up with is where I would start.
>
> Safe travels,
>
> Ralph and Charolette Fullenwider
> 84FC35 "Ruff Diamond"
> Duncan, Oklahoma
>
> At 12:56 PM 1/13/2008 +0000, you wrote:
>
>
> >HELLO RALPH,
> >
> >
> >Thank you for posting these precious documents.
> >But, now I am more confused??????
> >
> >Our Bendix cruise control works great. It is the high idle
> >on our FC that is intermittent, It occationally takes off
> >and really revs up the 3208, So it can not be trusted or used.
> >
> >One of the troubleshooting tips in the manual is to check the
> >resistance of the potentiometer in the CC-5.
> >Well two of the readings show an open circuit and the third reading
> >is in tolerance.
> >Do you have any advice on where to check further??
> >
> >Thanks again for all your posts.
> >
> >Bill 88 FC Michigan
> >
> >
> >
> >--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> > wrote:
> > >
> > > Hello everyone:
> > >
> > > Earlier today, I put some files in a folder in the files section
> >Concerning
> > > the Bendix Cruise Control. It is split up into 3 PDF files and is
> >as
> > > complete a manual as I have been able to put together over the
> >years. The
> > > Manual not only cover advanced trouble shooting, it covers the dip
> >switch
> > > set up of the control module and the math that addresses the "why"
> >of the
> > > dip switch settings.
> > >
> > > Along with these files, I up loaded another PDF file for the 6V and
> >8V air
> > > throttle systems, as these systems on the PT's incorporate the air
> > > throttle. There is another file section that is the text portion
> >explaining
> > > how the air throttle works and the sequence of operation that I
> >wrote a
> > > couple of years ago.
> > >
> > > I hope you find these files helpful.
> > >
> > > Oh for those that have not run across it as yet, on the FC's the
> >high idle
> > > is set with the cruise control where the PT's the cruise is not
> >used but a
> > > separate high idle system comes into play.
> > >
> > >
> > > Safe travels,
> > >
> > > Ralph and Charolette Fullenwider
> > > 84FC35 "Ruff Diamond" (looking good with new oak floors and
> >captains chairs
> > > up front)
> > > Duncan, Oklahoma
> > >
> >
>

[Ralph L. Fullenwider]

Hi Dick:

Nice place to be, Canyon Lake area. The parts for the Bendix
Cruise are obsolete and to my knowledge not available as new any longer.

It may just be a matter of lubrication being needed too. One thing that
should not hurt to try is, using CRC spray lube, remove an air line just
prior to a valve and spray CRC into the air line the re connect and apply
air. This should lubricate the dry o-rings and so forth and may free things
up a bit. Just a thought, I know I have done this to my unit and others and
it helped, just don't over do it. The CC-5 cable can be lubricated as well.

Safe travels,

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

At 01:59 PM 1/13/2008 +0000, you wrote:
>Morning Ralph & Bill: Is there a way to clean or service those two
>solenoid valves? Are the replacements available through Bendix? My
>understanding is that these valves are mounted inside the approx 12"X
>16" steel case behind the drivers side battery box on the 1988 FC.
>
>Bill...have you removed the throttle cable to clean & lubricate?
>
>Thanks from keeping this CC/fast idle discussion going.
>
>Dick Gideon
>Freedom Bird
>1989 35FC35
>On the Road at Canyon Lake, TX
>
>
>
>--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Morning Bill:
> >
> > There are 2 valves mounted on or near the control unit. I would
>suspect one
> > of those are sticking from time to time on you for the high idle. Since
> > your cruise is working the cc-5 is working and that is in drive but
>when in
> > N the air should be metered from those valves to the inversion valve
>and
> > conversely the cc-5. Back up a step or 2 from the cc-5 and see what you
> > come up with is where I would start.
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > 84FC35 "Ruff Diamond"
> > Duncan, Oklahoma
> >
> > At 12:56 PM 1/13/2008 +0000, you wrote:
> >
> >
> > >HELLO RALPH,
> > >
> > >
> > >Thank you for posting these precious documents.
> > >But, now I am more confused??????
> > >
> > >Our Bendix cruise control works great. It is the high idle
> > >on our FC that is intermittent, It occationally takes off
> > >and really revs up the 3208, So it can not be trusted or used.
> > >
> > >One of the troubleshooting tips in the manual is to check the
> > >resistance of the potentiometer in the CC-5.
> > >Well two of the readings show an open circuit and the third reading
> > >is in tolerance.
> > >Do you have any advice on where to check further??
> > >
> > >Thanks again for all your posts.
> > >
> > >Bill 88 FC Michigan
> > >
> > >
> > >
> > >--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> > > wrote:
> > > >
> > > > Hello everyone:
> > > >
> > > > Earlier today, I put some files in a folder in the files section
> > >Concerning
> > > > the Bendix Cruise Control. It is split up into 3 PDF files and is
> > >as
> > > > complete a manual as I have been able to put together over the
> > >years. The
> > > > Manual not only cover advanced trouble shooting, it covers the dip
> > >switch
> > > > set up of the control module and the math that addresses the "why"
> > >of the
> > > > dip switch settings.
> > > >
> > > > Along with these files, I up loaded another PDF file for the 6V and
> > >8V air
> > > > throttle systems, as these systems on the PT's incorporate the air
> > > > throttle. There is another file section that is the text portion
> > >explaining
> > > > how the air throttle works and the sequence of operation that I
> > >wrote a
> > > > couple of years ago.
> > > >
> > > > I hope you find these files helpful.
> > > >
> > > > Oh for those that have not run across it as yet, on the FC's the
> > >high idle
> > > > is set with the cruise control where the PT's the cruise is not
> > >used but a
> > > > separate high idle system comes into play.
> > > >
> > > >
> > > > Safe travels,
> > > >
> > > > Ralph and Charolette Fullenwider
> > > > 84FC35 "Ruff Diamond" (looking good with new oak floors and
> > >captains chairs
> > > > up front)
> > > > Duncan, Oklahoma
> > > >
> > >
> >
>
>

[Richard Gideon]

Thanks...I think I smell coffee and breakfast awaits...

Yes Canyon Lake is nice...we'll be at Lake Point Resort for about 6 weeks.

Dick Gideon

--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
wrote:
>
> Hi Dick:
>
> Nice place to be, Canyon Lake area. The parts for the Bendix
> Cruise are obsolete and to my knowledge not available as new any longer.
>
> It may just be a matter of lubrication being needed too. One thing that
> should not hurt to try is, using CRC spray lube, remove an air line
just
> prior to a valve and spray CRC into the air line the re connect and
apply
> air. This should lubricate the dry o-rings and so forth and may free
things
> up a bit. Just a thought, I know I have done this to my unit and
others and
> it helped, just don't over do it. The CC-5 cable can be lubricated
as well.
>
> Safe travels,
>
> Ralph and Charolette Fullenwider
> 84FC35 "Ruff Diamond"
> Duncan, Oklahoma
>
> At 01:59 PM 1/13/2008 +0000, you wrote:
> >Morning Ralph & Bill: Is there a way to clean or service those two
> >solenoid valves? Are the replacements available through Bendix? My
> >understanding is that these valves are mounted inside the approx 12"X
> >16" steel case behind the drivers side battery box on the 1988 FC.
> >
> >Bill...have you removed the throttle cable to clean & lubricate?
> >
> >Thanks from keeping this CC/fast idle discussion going.
> >
> >Dick Gideon
> >Freedom Bird
> >1989 35FC35
> >On the Road at Canyon Lake, TX
> >
> >
> >
> >--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> > wrote:
> > >
> > > Morning Bill:
> > >
> > > There are 2 valves mounted on or near the control unit. I would
> >suspect one
> > > of those are sticking from time to time on you for the high
idle. Since
> > > your cruise is working the cc-5 is working and that is in drive but
> >when in
> > > N the air should be metered from those valves to the inversion valve
> >and
> > > conversely the cc-5. Back up a step or 2 from the cc-5 and see
what you
> > > come up with is where I would start.
> > >
> > > Safe travels,
> > >
> > > Ralph and Charolette Fullenwider
> > > 84FC35 "Ruff Diamond"
> > > Duncan, Oklahoma
> > >
> > > At 12:56 PM 1/13/2008 +0000, you wrote:
> > >
> > >
> > > >HELLO RALPH,
> > > >
> > > >
> > > >Thank you for posting these precious documents.
> > > >But, now I am more confused??????
> > > >
> > > >Our Bendix cruise control works great. It is the high idle
> > > >on our FC that is intermittent, It occationally takes off
> > > >and really revs up the 3208, So it can not be trusted or used.
> > > >
> > > >One of the troubleshooting tips in the manual is to check the
> > > >resistance of the potentiometer in the CC-5.
> > > >Well two of the readings show an open circuit and the third reading
> > > >is in tolerance.
> > > >Do you have any advice on where to check further??
> > > >
> > > >Thanks again for all your posts.
> > > >
> > > >Bill 88 FC Michigan
> > > >
> > > >
> > > >
> > > >--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> > > > wrote:
> > > > >
> > > > > Hello everyone:
> > > > >
> > > > > Earlier today, I put some files in a folder in the files section
> > > >Concerning
> > > > > the Bendix Cruise Control. It is split up into 3 PDF files
and is
> > > >as
> > > > > complete a manual as I have been able to put together over the
> > > >years. The
> > > > > Manual not only cover advanced trouble shooting, it covers
the dip
> > > >switch
> > > > > set up of the control module and the math that addresses the
"why"
> > > >of the
> > > > > dip switch settings.
> > > > >
> > > > > Along with these files, I up loaded another PDF file for the
6V and
> > > >8V air
> > > > > throttle systems, as these systems on the PT's incorporate
the air
> > > > > throttle. There is another file section that is the text portion
> > > >explaining
> > > > > how the air throttle works and the sequence of operation that I
> > > >wrote a
> > > > > couple of years ago.
> > > > >
> > > > > I hope you find these files helpful.
> > > > >
> > > > > Oh for those that have not run across it as yet, on the FC's the
> > > >high idle
> > > > > is set with the cruise control where the PT's the cruise is not
> > > >used but a
> > > > > separate high idle system comes into play.
> > > > >
> > > > >
> > > > > Safe travels,
> > > > >
> > > > > Ralph and Charolette Fullenwider
> > > > > 84FC35 "Ruff Diamond" (looking good with new oak floors and
> > > >captains chairs
> > > > > up front)
> > > > > Duncan, Oklahoma
> > > > >
> > > >
> > >
> >
> >
>