What is this thing?

[Scott Forman]

Under the right front corner of my FC, there is a silver cylinder about
the size of a coke can. There are two hoses comng off it, one goes
into a 'T' that goes into the radiator, the other goes around the front
of the engine and enters the left side of the block just in front of
the bell housing. What is this thing?

The little hose coming from the rad has a slit and needs to be
replaced. When I loosened the clamps, coolant began to leak. Is the
full contents of my cooling system going to come out if I remve this
hose?

Scott Forman
82 FC35RB
Memphis

[emc2jb6]

hi ... what you may be looking at is a heater for the rad fluid. had
one on my bus and it didnt work so i removed it. just something else to
leak or break. i live is louisiana so i saw no need to replace it.

ed and peggy
35 ft rear bath
"lonesome dove"

[George Witt]

Scott,
That's your electric pre-heater for the engine. The switch that
turns it on is right in front of the passenger's feet. It looks like
a light switch you'd see on the wall, but it lights up red when it's on.
A whole bunch of coolant will eventually come out, because that's
one of the lowest places in the whole cooling system. ;o)
Mine quit working and I replaced it with a 2,000 watt unit from
NAPA. Works great.

George Witt
81 FC 35
Lincoln, Nebraska


--- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@...>
wrote:
>
> Under the right front corner of my FC, there is a silver cylinder about
> the size of a coke can. There are two hoses comng off it, one goes
> into a 'T' that goes into the radiator, the other goes around the front
> of the engine and enters the left side of the block just in front of
> the bell housing. What is this thing?
>
> The little hose coming from the rad has a slit and needs to be
> replaced. When I loosened the clamps, coolant began to leak. Is the
> full contents of my cooling system going to come out if I remve this
> hose?
>
> Scott Forman
> 82 FC35RB
> Memphis
>

[Ryan Wright]

Picture here: http://www.ryanwright.com/tmp/thing.jpg

What is this thing? It's on the right side of my engine, tied into my
air system. It's leaking air like a sieve, on all sides where the
upper and lower pieces meet. I'd like to either replace the seal,
rebuild the thing, or replace it all together. But I need to know what
it is first.

-Ryan
'86 PT-40 8V92

[Mike Hohnstein]

looks like a vacuum generator for the cruise.

MH

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

From: "ryanpwright@gmail.com"

To: "WanderlodgeForum@yahoogroups.com"

Sent: Monday, March 03, 2008 12:39 AM

Subject: [WanderlodgeForum] What is this thing?

Picture here: http://www.ryanwright.com/tmp/thing.jpg

What is this thing? It's on the right side of my engine, tied into my
air system. It's leaking air like a sieve, on all sides where the
upper and lower pieces meet. I'd like to either replace the seal,
rebuild the thing, or replace it all together. But I need to know what
it is first.

-Ryan
'86 PT-40 8V92

[thomas_sorrentino]

Ryan,
My guess, and it's only a guess! A pressure reducer that goes to the
bulk oil fill.

Tom Sorrentino
1987 PT38
Bedford Hills, NY

--- In WanderlodgeForum@yahoogroups.com, "Ryan Wright"
wrote:
>
> Picture here: http://www.ryanwright.com/tmp/thing.jpg
>
> What is this thing? It's on the right side of my engine, tied into my
> air system. It's leaking air like a sieve, on all sides where the
> upper and lower pieces meet. I'd like to either replace the seal,
> rebuild the thing, or replace it all together. But I need to know what
> it is first.
>
> -Ryan
> '86 PT-40 8V92
>

[Gregory OConnor]

Ryan, I would go with pressure regulator if it is routed to the bulk
oil??? Have you tried to tighten up the 4 screws?? looks like it
was off and rebuilt recent. may be time for a new one. Take care to
first remove the bell shaped nut holding the airline. the lines get
brittle with all the heat back there. If you must replace the metal
air line, the plastic stuff is way tough but I wonder about the
heat. I have the same leaking item just to the right of the 8V, near
the bumper

GregO'Connor
94ptRomolandCa

--- In WanderlodgeForum@yahoogroups.com, "thomas_sorrentino"
wrote:
>
> Ryan,
> My guess, and it's only a guess! A pressure reducer that goes to
the
> bulk oil fill.
>
> Tom Sorrentino
> 1987 PT38
> Bedford Hills, NY
>
> --- In WanderlodgeForum@yahoogroups.com, "Ryan Wright"
> wrote:
> >
> > Picture here: http://www.ryanwright.com/tmp/thing.jpg
> >
> > What is this thing? It's on the right side of my engine, tied
into my
> > air system. It's leaking air like a sieve, on all sides where the
> > upper and lower pieces meet. I'd like to either replace the seal,
> > rebuild the thing, or replace it all together. But I need to
know what
> > it is first.
> >
> > -Ryan
> > '86 PT-40 8V92
> >
>

[pattypape]

Check valve, pressure reducer, inversion valve,????

Look here for a replacement

http://www.anythingtruck.com/commercial/...alves.html

Bill 88 FC Michigan


--- In WanderlodgeForum@yahoogroups.com, "Ryan Wright"
wrote:
>
> Picture here: http://www.ryanwright.com/tmp/thing.jpg
>
> What is this thing? It's on the right side of my engine, tied into my
> air system. It's leaking air like a sieve, on all sides where the
> upper and lower pieces meet. I'd like to either replace the seal,
> rebuild the thing, or replace it all together. But I need to know what
> it is first.
>
> -Ryan
> '86 PT-40 8V92
>

[msksann]

Ryan:
It is a Pressure Protection Valve. There should be some part numbers
located on the 'cap', which, in this picture, is located underneath.
It is probably the same ones used between the air tank and the spring
brakes. Those are Midland part #N15759C (N157590) BB part #0522508.
This has been replaced by the Haldex KN31000, available at napa for
aprox $38. Or online for less:
http://tinyurl.com/24ngm4
I do not have the bulk oil fill on my Bird, so I can not check, but I
had the diaphragm rupture on one of mine last week, (for the drive
axel spring brakes). It opens at 65psi, and closes at 45psi, and it
protects the air system from loss of pressure. On the 3 used on the 3
axels, I believe the application is different, they keep us from
releasing the brakes until we have at least 65psi, and close down if
air pressure drops below 45psi(?) Perhaps someone else will jump in
here and confirm this applications use, since a failure could be
critical(?)
I begin to suspect that the diaphragm material is cracking in all of
them from age(?)

Michael Kramer
86 PT-40 8V92
San Diego, CA

--- In WanderlodgeForum@yahoogroups.com, "Ryan Wright"
wrote:
>
> Picture here: http://www.ryanwright.com/tmp/thing.jpg
>
> What is this thing? It's on the right side of my engine, tied into my
> air system. It's leaking air like a sieve, on all sides where the
> upper and lower pieces meet. I'd like to either replace the seal,
> rebuild the thing, or replace it all together. But I need to know what
> it is first.
>
> -Ryan
> '86 PT-40 8V92
>

[msksann]

Just to correct my previous post, I have found 2 Pressure Protection
Valves, (I do not have the bulk oil fill), and they are used in the
Ridewell air spring suspension system, not the air brake system. I am
unsure if they regulate the air pressure, or protect it from air loss,
or perhaps either or both, depending on how the ports are connected(?)
The specs say that the valve opens at 65psi, and closes at 45psi.
I started another thread under 'Pressure Protection Valves', to share
my expirence with the forum, and perhaps clear this up.
I do believe the diaphragm material is hardening and failing...

Michael Kramer
86 PT-40 8V92
San Dieg0,CA
--- In WanderlodgeForum@yahoogroups.com, "msksann" <msksan@...> wrote:
>
> Ryan:
> It is a Pressure Protection Valve. There should be some part numbers
> located on the 'cap', which, in this picture, is located underneath.
> It is probably the same ones used between the air tank and the spring
> brakes. Those are Midland part #N15759C (N157590) BB part #0522508.
> This has been replaced by the Haldex KN31000, available at napa for
> aprox $38. Or online for less:
> http://tinyurl.com/24ngm4
> I do not have the bulk oil fill on my Bird, so I can not check, but I
> had the diaphragm rupture on one of mine last week, (for the drive
> axel spring brakes). It opens at 65psi, and closes at 45psi, and it
> protects the air system from loss of pressure. On the 3 used on the 3
> axels, I believe the application is different, they keep us from
> releasing the brakes until we have at least 65psi, and close down if
> air pressure drops below 45psi(?) Perhaps someone else will jump in
> here and confirm this applications use, since a failure could be
> critical(?)
> I begin to suspect that the diaphragm material is cracking in all of
> them from age(?)
>
> Michael Kramer
> 86 PT-40 8V92
> San Diego, CA
>
> --- In WanderlodgeForum@yahoogroups.com, "Ryan Wright"
> wrote:
> >
> > Picture here: http://www.ryanwright.com/tmp/thing.jpg
> >
> > What is this thing? It's on the right side of my engine, tied into my
> > air system. It's leaking air like a sieve, on all sides where the
> > upper and lower pieces meet. I'd like to either replace the seal,
> > rebuild the thing, or replace it all together. But I need to know what
> > it is first.
> >
> > -Ryan
> > '86 PT-40 8V92
> >
>