Education thread

[erniecarpet@...]

I guess my coach's air throttle will lag when i switch it to high idle.
Maybe it cuts in at a certain air pressure? ernie- 83pt40 in montana- snow above
5000 feet. I'm at 4500- time to go home if it gets lower


[Non-text portions of this message have been removed]

[Ralph L. Fullenwider]

Good morning everyone:

Well the grass is cut, edges all trimmed and weed eater put away on this
beautiful Sunday morning.

What say we start and education thread?

Here is a topic seldom touched upon and can benefit all of us in one way or
another.

Anyone had much to do with the air throttle system, high idle system and
electronic shifter found on the PT's and some FC's? Come on PT owner's jump
on this one and lets find out how they work, where the components are
located and how to adjust them.

Many of the air throttles seem to have a little greater lag than others.
What is sticking, and wehre is it?

Safe travels,

Ralph and Charolette Fullenwider
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm

[Fred Hulse]

Ralph,
This is a good subject,I wish I had more knowledge about it.
The only experience I can relate to is the DD pro driver on few occasions
has given me a warning message that there was a TPS problem and the cruise
would shut off.
I don't think I have a lag in the throttle,but never compared it to anything
else.
Fred & Jeanne Hulse
Morristown Arizona
1997 Wanderlodge PT41

[Ralph L. Fullenwider]

Thank you Fred and Ernie:

Anyone have any info in the blue/black boxes on the air throttle, high idle
circuits? Lets find out what makes these things tick.

I will try to find out more info on them and post it. Just though some of
the guys might have played with this, so we could all learn.

Safe travels,

Ralph and Charolette Fullenwider
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm

At 11:01 AM 10/3/2005 -0700, you wrote:
>Ralph,
>This is a good subject,I wish I had more knowledge about it.
>The only experience I can relate to is the DD pro driver on few occasions
>has given me a warning message that there was a TPS problem and the cruise
>would shut off.
>I don't think I have a lag in the throttle,but never compared it to anything
>else.
>Fred & Jeanne Hulse
>Morristown Arizona
>1997 Wanderlodge PT41
>
>

[Ralph L. Fullenwider]

Thank to those who have responded. The picture is still un clear to me
anyway, as to how the system works. I know that the high idle is part of
the air throttle system and when switched on at the dash, it opens a
solenoid and a metered amount of air brings the idle to 1000 RPM's give or
take. And when the high idle switch is on, there is no response form the
throttle pedal. So I can only conclude that the air from both, the foot
throttle and the high idle goes to the same solenoid and is selectable via
the switch.

There should be a transducer for the Allison as well that ties into this
circuit and that there has to be a transducer at the throttle on the 6v92
and 8v92. I have always assumed it was the silver looking cylinder about as
big around as your thumb and 5 to 6 inches long, located on the left side
of the throttle area. I have heard that the pin from this
transducer/cylinder can wear to the point of not pushing the bell crank on
the inside of that same area, but again this is purely speculative on my part.

So all in all, we still know, not very much about the system. Anyone know
who makes the air throttle on the Birds?

Safe travels,

Ralph and Charolette Fullenwider
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm

At 05:22 PM 10/3/2005 -0500, you wrote:
>Thank you Fred and Ernie:
>
>Anyone have any info in the blue/black boxes on the air throttle, high idle
>circuits? Lets find out what makes these things tick.
>
>I will try to find out more info on them and post it. Just though some of
>the guys might have played with this, so we could all learn.
>
>Safe travels,
>
>Ralph and Charolette Fullenwider
>Ralph's RV Solutions, Duncan, Oklahoma
>http://home.swbell.net/rlf47/index.htm
>

[Jay Darst]

If anyone has information to contribute regarding the air throtttle,
its components and how they function, I would appreciate hearing
about it.

My high idle is set at 1,350 rpm. I ant to slow it to 1,000 rpm but
don't know what or where to adjust it.

A typed description is nice, but a picture of the component would
help tremendously!

This thread was started by Ralph, it wasn't finished(IMO) when it
faded away. Least I can't find the info I need.

Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeellllllp!

Thanks
Jay Darst
85PT40
Springfield, IL where we are still cleaning up from the 2 tornadoes
and this evening we have a winter storm warning, 7 inches of blowing
drifting accumulation by tomorrow, Spring started today at 6:33am
CT... ;-}


--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
wrote:
>
> Good morning everyone:
>
> Well the grass is cut, edges all trimmed and weed eater put away
on this
> beautiful Sunday morning.
>
> What say we start and education thread?
>
> Here is a topic seldom touched upon and can benefit all of us in
one way or
> another.
>
> Anyone had much to do with the air throttle system, high idle
system and
> electronic shifter found on the PT's and some FC's? Come on PT
owner's jump
> on this one and lets find out how they work, where the components
are
> located and how to adjust them.
>
> Many of the air throttles seem to have a little greater lag than
others.
> What is sticking, and wehre is it?
>
> Safe travels,
>
> Ralph and Charolette Fullenwider
> Ralph's RV Solutions, Duncan, Oklahoma
> http://home.swbell.net/rlf47/index.htm
>

[randydupree2000]

--- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
wrote:jay,i don't have any pics,but there is an
adjustment for the high idle.the best i remember (its been years)you
need a 9/16 wrench to adjust it. looking into your engine
compartment,above the fuel filter on top of the engine you will
see..jay,i have an 86 pt40 here for sme repairs,let me look at that
part tomorrow so i can give you a better discription,i need a
refresher on it! BUT,before you go adjusting anything replace the
throttle return springs where the throttle cable connects on top of
the engine at the rear,you need 3 springs,anything less will result
in high fast idle speeds,no kidding..
randy dupree 93wb
84fc for sale
>
> If anyone has information to contribute regarding the air
throtttle,
> its components and how they function, I would appreciate hearing
> about it.
>
> My high idle is set at 1,350 rpm. I ant to slow it to 1,000 rpm
but
> don't know what or where to adjust it.
>
> A typed description is nice, but a picture of the component would
> help tremendously!
>
> This thread was started by Ralph, it wasn't finished(IMO) when it
> faded away. Least I can't find the info I need.
>
> Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeellllllp!
>
> Thanks
> Jay Darst
> 85PT40
> Springfield, IL where we are still cleaning up from the 2
tornadoes
> and this evening we have a winter storm warning, 7 inches of
blowing
> drifting accumulation by tomorrow, Spring started today at 6:33am
> CT... ;-}
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Good morning everyone:
> >
> > Well the grass is cut, edges all trimmed and weed eater put away
> on this
> > beautiful Sunday morning.
> >
> > What say we start and education thread?
> >
> > Here is a topic seldom touched upon and can benefit all of us in
> one way or
> > another.
> >
> > Anyone had much to do with the air throttle system, high idle
> system and
> > electronic shifter found on the PT's and some FC's? Come on PT
> owner's jump
> > on this one and lets find out how they work, where the
components
> are
> > located and how to adjust them.
> >
> > Many of the air throttles seem to have a little greater lag than
> others.
> > What is sticking, and wehre is it?
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > Ralph's RV Solutions, Duncan, Oklahoma
> > http://home.swbell.net/rlf47/index.htm
> >
>

[Ralph L. Fullenwider]

Good morning Jay and everyone:

The high idle transducer is located, as your looking at the engine, on the
left up high and is a round cylinder. This is adjusted with the jam nut on
the front of the cylinder. The push rod of the cylinder pushes on a bell
crank type of clevis to set the high idle. This clevis can and does wear
over time as does the end of the push rod. Adjust it out 1/8th of a turn at
a time, then try it.

In the earlier post on this subject, I simply gave the sequence of
operation and air flows as well as where they came from and went to and
what controlled what.

The air throttle sluggishness was the main theme of that post. The high
idle switch actually opens a valve about just forward of mid way of the
Coach up inside the frame and that is where the air comes from for that
transducer on the engine.

Hope this helps a little, I don't have any photos of it.

Safe travels,

Ralph and Charolette Fullenwider Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm

At 05:08 PM 3/20/2006 +0000, you wrote:
>If anyone has information to contribute regarding the air throtttle,
>its components and how they function, I would appreciate hearing
>about it.
>
>My high idle is set at 1,350 rpm. I ant to slow it to 1,000 rpm but
>don't know what or where to adjust it.
>
>A typed description is nice, but a picture of the component would
>help tremendously!
>
>This thread was started by Ralph, it wasn't finished(IMO) when it
>faded away. Least I can't find the info I need.
>
>Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeellllllp!
>
>Thanks
>Jay Darst
>85PT40
>Springfield, IL where we are still cleaning up from the 2 tornadoes
>and this evening we have a winter storm warning, 7 inches of blowing
>drifting accumulation by tomorrow, Spring started today at 6:33am
>CT... ;-}
>
>
>--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Good morning everyone:
> >
> > Well the grass is cut, edges all trimmed and weed eater put away
>on this
> > beautiful Sunday morning.
> >
> > What say we start and education thread?
> >
> > Here is a topic seldom touched upon and can benefit all of us in
>one way or
> > another.
> >
> > Anyone had much to do with the air throttle system, high idle
>system and
> > electronic shifter found on the PT's and some FC's? Come on PT
>owner's jump
> > on this one and lets find out how they work, where the components
>are
> > located and how to adjust them.
> >
> > Many of the air throttles seem to have a little greater lag than
>others.
> > What is sticking, and wehre is it?
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > Ralph's RV Solutions, Duncan, Oklahoma
> > http://home.swbell.net/rlf47/index.htm
> >
>
>

[Jay Darst]

Thanks Randy & Ralph!

Randy, I have updated tthe return springs using 2 springs with, what
seems to me, have an awful lot of return pressure.

I thought the old dual springs were contributing to my somewhat
sluggish throttle response, so removed one. Learned real quick when
I then engaged the high idle and it headed straight for Wide Open
Throttle, that you need the 2 return springs.

Seems this places quit a strain on things having some much spring
pressure..?

Ralph, I still don't find the transducer. Only thing I see is a
throttle cable coming from the cruise control board of crap.

Pictures anyone? Sure would like to slow down the high idle a bit.

Randy, I will add a 3rd return spring to see if it slows the high
idle as I know how and where to do that.

Thanks to both of you again!

Jay Darst
85PT40
Springfield, IL

--- In WanderlodgeForum@yahoogroups.com, "randydupree2000"
wrote:
>
> --- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
> wrote:jay,i don't have any pics,but there is an
> adjustment for the high idle.the best i remember (its been years)
you
> need a 9/16 wrench to adjust it. looking into your engine
> compartment,above the fuel filter on top of the engine you will
> see..jay,i have an 86 pt40 here for sme repairs,let me look at
that
> part tomorrow so i can give you a better discription,i need a
> refresher on it! BUT,before you go adjusting anything replace the
> throttle return springs where the throttle cable connects on top
of
> the engine at the rear,you need 3 springs,anything less will
result
> in high fast idle speeds,no kidding..
> randy dupree 93wb
> 84fc for sale
> >
> > If anyone has information to contribute regarding the air
> throtttle,
> > its components and how they function, I would appreciate hearing
> > about it.
> >
> > My high idle is set at 1,350 rpm. I ant to slow it to 1,000 rpm
> but
> > don't know what or where to adjust it.
> >
> > A typed description is nice, but a picture of the component
would
> > help tremendously!
> >
> > This thread was started by Ralph, it wasn't finished(IMO) when
it
> > faded away. Least I can't find the info I need.
> >
> > Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeellllllp!
> >
> > Thanks
> > Jay Darst
> > 85PT40
> > Springfield, IL where we are still cleaning up from the 2
> tornadoes
> > and this evening we have a winter storm warning, 7 inches of
> blowing
> > drifting accumulation by tomorrow, Spring started today at
6:33am
> > CT... ;-}
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> > wrote:
> > >
> > > Good morning everyone:
> > >
> > > Well the grass is cut, edges all trimmed and weed eater put
away
> > on this
> > > beautiful Sunday morning.
> > >
> > > What say we start and education thread?
> > >
> > > Here is a topic seldom touched upon and can benefit all of us
in
> > one way or
> > > another.
> > >
> > > Anyone had much to do with the air throttle system, high idle
> > system and
> > > electronic shifter found on the PT's and some FC's? Come on PT
> > owner's jump
> > > on this one and lets find out how they work, where the
> components
> > are
> > > located and how to adjust them.
> > >
> > > Many of the air throttles seem to have a little greater lag
than
> > others.
> > > What is sticking, and wehre is it?
> > >
> > > Safe travels,
> > >
> > > Ralph and Charolette Fullenwider
> > > Ralph's RV Solutions, Duncan, Oklahoma
> > > http://home.swbell.net/rlf47/index.htm
> > >
> >
>

[randydupree2000]

--- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
wrote: i did remember to look at the 86pt that i
have here,its not a jake brake model and the high idle adjustment is
different from what i was thinking.does yours have a engine jake
brake?
randy
>
> Thanks Randy & Ralph!
>
> Randy, I have updated tthe return springs using 2 springs with,
what
> seems to me, have an awful lot of return pressure.
>
> I thought the old dual springs were contributing to my somewhat
> sluggish throttle response, so removed one. Learned real quick
when
> I then engaged the high idle and it headed straight for Wide Open
> Throttle, that you need the 2 return springs.
>
> Seems this places quit a strain on things having some much spring
> pressure..?
>
> Ralph, I still don't find the transducer. Only thing I see is a
> throttle cable coming from the cruise control board of crap.
>
> Pictures anyone? Sure would like to slow down the high idle a bit.
>
> Randy, I will add a 3rd return spring to see if it slows the high
> idle as I know how and where to do that.
>
> Thanks to both of you again!
>
> Jay Darst
> 85PT40
> Springfield, IL
>
> --- In WanderlodgeForum@yahoogroups.com, "randydupree2000"
> wrote:
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Jay Darst"
> > wrote:jay,i don't have any pics,but there is an
> > adjustment for the high idle.the best i remember (its been years)
> you
> > need a 9/16 wrench to adjust it. looking into your engine
> > compartment,above the fuel filter on top of the engine you will
> > see..jay,i have an 86 pt40 here for sme repairs,let me look at
> that
> > part tomorrow so i can give you a better discription,i need a
> > refresher on it! BUT,before you go adjusting anything replace
the
> > throttle return springs where the throttle cable connects on top
> of
> > the engine at the rear,you need 3 springs,anything less will
> result
> > in high fast idle speeds,no kidding..
> > randy dupree 93wb
> > 84fc for sale
> > >
> > > If anyone has information to contribute regarding the air
> > throtttle,
> > > its components and how they function, I would appreciate
hearing
> > > about it.
> > >
> > > My high idle is set at 1,350 rpm. I ant to slow it to 1,000
rpm
> > but
> > > don't know what or where to adjust it.
> > >
> > > A typed description is nice, but a picture of the component
> would
> > > help tremendously!
> > >
> > > This thread was started by Ralph, it wasn't finished(IMO) when
> it
> > > faded away. Least I can't find the info I need.
> > >
> > > Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeellllllp!
> > >
> > > Thanks
> > > Jay Darst
> > > 85PT40
> > > Springfield, IL where we are still cleaning up from the 2
> > tornadoes
> > > and this evening we have a winter storm warning, 7 inches of
> > blowing
> > > drifting accumulation by tomorrow, Spring started today at
> 6:33am
> > > CT... ;-}
> > >
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Ralph L.
Fullenwider"
> > > wrote:
> > > >
> > > > Good morning everyone:
> > > >
> > > > Well the grass is cut, edges all trimmed and weed eater put
> away
> > > on this
> > > > beautiful Sunday morning.
> > > >
> > > > What say we start and education thread?
> > > >
> > > > Here is a topic seldom touched upon and can benefit all of
us
> in
> > > one way or
> > > > another.
> > > >
> > > > Anyone had much to do with the air throttle system, high
idle
> > > system and
> > > > electronic shifter found on the PT's and some FC's? Come on
PT
> > > owner's jump
> > > > on this one and lets find out how they work, where the
> > components
> > > are
> > > > located and how to adjust them.
> > > >
> > > > Many of the air throttles seem to have a little greater lag
> than
> > > others.
> > > > What is sticking, and wehre is it?
> > > >
> > > > Safe travels,
> > > >
> > > > Ralph and Charolette Fullenwider
> > > > Ralph's RV Solutions, Duncan, Oklahoma
> > > > http://home.swbell.net/rlf47/index.htm
> > > >
> > >
> >
>