Engine Room Temperature

[Curt Sprenger]

My next project is to correctly wire the 7 flat pin trailer receptacle. I'd like to install circuit breakers and relays in the engine room. I have on hand circuit breakers rated up to 150 (F). They will be installed on a panel, and the panel will be located just reward of the junction box that contains the battery heater wiring. In using these CBs, am I heading for trouble due to the heat in the engine room?


--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[Gregory OConnor]

The 94 engine compartment is loaded up with about 10 cb's the
problem I found was water passing the hermetic seal on the cb. I can
see where heat will be an issue because there is a thin piece of
metal that holds the contact point against a lug in the cb. I
believe it is heat that causes the metal to distort and move away
from the lug.

I wonder if fuses are not a better protection. with a fuse, a ground
short will pop it and you will have proof when you do the 10 second
pretrip taillight test. it could be that a cb opens up 30 seconds
after you set out on the road and resets itsself for your next
pretrip check.

gotta be a reason they (auto engineeres) use some cb's and some
fuses???

I like the way you isolated my trailer light power from throwing my
bus tail light power.

Greg94ptCa

--- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
wrote:
>
> My next project is to correctly wire the 7 flat pin trailer
receptacle. I'd
> like to install circuit breakers and relays in the engine room. I
have on
> hand circuit breakers rated up to 150 (F). They will be installed
on a
> panel, and the panel will be located just reward of the junction
box that
> contains the battery heater wiring. In using these CBs, am I
heading for
> trouble due to the heat in the engine room?
>
> --
> Curt Sprenger
> 1987 PT38 8V92 "MacAttack Racing"
> Anaheim Hills, CA
>

[Curt Sprenger]

Greg, Thanks. Good thought using fuses instead of CBs. I'll add your suggestion to my project consideration list. I need to get this project done before the SWBB Flying Flags rally at the end of October. I plan to take the trailer/bike up there and do a little touring.

On Sun, Oct 5, 2008 at 7:16 PM, Gregory OConnor <"Gregoryoc@aol.com"> wrote:

The 94 engine compartment is loaded up with about 10 cb's the

problem I found was water passing the hermetic seal on the cb. I can

see where heat will be an issue because there is a thin piece of

metal that holds the contact point against a lug in the cb. I

believe it is heat that causes the metal to distort and move away

from the lug.



I wonder if fuses are not a better protection. with a fuse, a ground

short will pop it and you will have proof when you do the 10 second

pretrip taillight test. it could be that a cb opens up 30 seconds

after you set out on the road and resets itsself for your next

pretrip check.



gotta be a reason they (auto engineeres) use some cb's and some

fuses???



I like the way you isolated my trailer light power from throwing my

bus tail light power.



Greg94ptCa



--- In "WanderlodgeForum%40yahoogroups.com", "Curt Sprenger"

wrote:

>

> My next project is to correctly wire the 7 flat pin trailer

receptacle. I'd

> like to install circuit breakers and relays in the engine room. I

have on

> hand circuit breakers rated up to 150 (F). They will be installed

on a

> panel, and the panel will be located just reward of the junction

box that

> contains the battery heater wiring. In using these CBs, am I

heading for

> trouble due to the heat in the engine room?

>

> --

> Curt Sprenger

> 1987 PT38 8V92 "MacAttack Racing"

> Anaheim Hills, CA

>

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[Joyce and Richard Hayden]



Curt,

Have you considered putting the cb's in the charger/shunt bay just ahead of the curb side e.r. louvers? Might get a little warm there being just above the tail pipe, but there is plenty of room on the rear wall of that compartment. I don't think that it is any warmer than above the batteries. Either would be fine I suppose but I wouldn't want to make servicing the batteries a problem.

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

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

From: "curtsprenger@gmail.com"

To: "WanderlodgeForum@yahoogroups.com"

Sent: Sunday, October 05, 2008 8:19 PM

Subject: Re: [WanderlodgeForum] Re: Engine Room Temperature

Greg, Thanks. Good thought using fuses instead of CBs. I'll add your suggestion to my project consideration list. I need to get this project done before the SWBB Flying Flags rally at the end of October. I plan to take the trailer/bike up there and do a little touring.

On Sun, Oct 5, 2008 at 7:16 PM, Gregory OConnor <"Gregoryoc@aol.com"> wrote:

The 94 engine compartment is loaded up with about 10 cb's the
problem I found was water passing the hermetic seal on the cb. I can
see where heat will be an issue because there is a thin piece of
metal that holds the contact point against a lug in the cb. I
believe it is heat that causes the metal to distort and move away
from the lug.

I wonder if fuses are not a better protection. with a fuse, a ground
short will pop it and you will have proof when you do the 10 second
pretrip taillight test. it could be that a cb opens up 30 seconds
after you set out on the road and resets itsself for your next
pretrip check.

gotta be a reason they (auto engineeres) use some cb's and some
fuses???

I like the way you isolated my trailer light power from throwing my
bus tail light power.

Greg94ptCa

--- In "WanderlodgeForum%40yahoogroups.com", "Curt Sprenger"

...> wrote:
>
> My next project is to correctly wire the 7 flat pin trailer
receptacle. I'd
> like to install circuit breakers and relays in the engine room. I
have on
> hand circuit breakers rated up to 150 (F). They will be installed
on a
> panel, and the panel will be located just reward of the junction
box that
> contains the battery heater wiring. In using these CBs, am I
heading for
> trouble due to the heat in the engine room?
>
> --
> Curt Sprenger
> 1987 PT38 8V92 "MacAttack Racing"
> Anaheim Hills, CA
>

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[sfedeli3]

Hi Curt,

I placed a small breaker panel in the charging compartment behind
the tag axle, just forward of the tailpipe. My coach has a removable
louvered door that allows access to the charger/inverter, shunts and
some small fuse holders that were in there. The compartment rarely
sees more than 150 degrees since I put a cooling fan on it & the
breakers have been working fine and stay dry in there.

The temperature probe on my battery bank rarely exceeds 145 degrees,
so you would probably be safe locating them above the batteries too. I
would just make sure that they are in a protective box to keep out
moisture.

Shane Fedeli
85PT40
Hershey PA

--- In WanderlodgeForum@yahoogroups.com, "Joyce and Richard Hayden"
wrote:
>
> Curt,
> Have you considered putting the cb's in the charger/shunt bay just
ahead of the curb side e.r. louvers? Might get a little warm there
being just above the tail pipe, but there is plenty of room on the
rear wall of that compartment. I don't think that it is any warmer
than above the batteries. Either would be fine I suppose but I
wouldn't want to make servicing the batteries a problem.
>
> Dick Hayden - '87 PT 38 - Lake Stevens, WA
> ----- Original Message -----
> From: Curt Sprenger
> To:
WanderlodgeForum@yahoogroups.com
> Sent: Sunday, October 05, 2008 8:19 PM
> Subject: Re: [WanderlodgeForum] Re: Engine Room Temperature
>
>
>
> Greg, Thanks. Good thought using fuses instead of CBs. I'll add
your suggestion to my project consideration list. I need to get this
project done before the SWBB Flying Flags rally at the end of October.
I plan to take the trailer/bike up there and do a little touring.
>
>
> On Sun, Oct 5, 2008 at 7:16 PM, Gregory OConnor
> wrote:
>
> The 94 engine compartment is loaded up with about 10 cb's the
> problem I found was water passing the hermetic seal on the cb. I
can
> see where heat will be an issue because there is a thin piece of
> metal that holds the contact point against a lug in the cb. I
> believe it is heat that causes the metal to distort and move away
> from the lug.
>
> I wonder if fuses are not a better protection. with a fuse, a
ground
> short will pop it and you will have proof when you do the 10 second
> pretrip taillight test. it could be that a cb opens up 30 seconds
> after you set out on the road and resets itsself for your next
> pretrip check.
>
> gotta be a reason they (auto engineeres) use some cb's and some
> fuses???
>
> I like the way you isolated my trailer light power from throwing my
> bus tail light power.
>
> Greg94ptCa
>
> --- In
WanderlodgeForum@yahoogroups.com,
"Curt Sprenger"
>
>
> wrote:
> >
> > My next project is to correctly wire the 7 flat pin trailer
> receptacle. I'd
> > like to install circuit breakers and relays in the engine room. I
> have on
> > hand circuit breakers rated up to 150 (F). They will be installed
> on a
> > panel, and the panel will be located just reward of the junction
> box that
> > contains the battery heater wiring. In using these CBs, am I
> heading for
> > trouble due to the heat in the engine room?
> >
> > --
> > Curt Sprenger
> > 1987 PT38 8V92 "MacAttack Racing"
> > Anaheim Hills, CA
> >
>
>
>
>
>
> --
> Curt Sprenger
> 1987 PT38 8V92 "MacAttack Racing"
> Anaheim Hills, CA
>

[Curt Sprenger]

Dick, Shane,

Thanks. I've thought about the charger compartment. It's a bit tight to work in there as I've already used some of the rear wall. Another option is a hinged plate mounted just inside the door, hinged at the bottom, letting it hinge down/out to get at the added CBs/relays when necessary or to get at all the other components.

On Sun, Oct 5, 2008 at 11:15 PM, sfedeli3 <"sfedeli3@comcast.net"> wrote:

Hi Curt,



I placed a small breaker panel in the charging compartment behind

the tag axle, just forward of the tailpipe. My coach has a removable

louvered door that allows access to the charger/inverter, shunts and

some small fuse holders that were in there. The compartment rarely

sees more than 150 degrees since I put a cooling fan on it & the

breakers have been working fine and stay dry in there.



The temperature probe on my battery bank rarely exceeds 145 degrees,

so you would probably be safe locating them above the batteries too. I

would just make sure that they are in a protective box to keep out

moisture.



Shane Fedeli

85PT40

Hershey PA



--- In "WanderlodgeForum%40yahoogroups.com", "Joyce and Richard Hayden"

wrote:

>

> Curt,

> Have you considered putting the cb's in the charger/shunt bay just

ahead of the curb side e.r. louvers? Might get a little warm there

being just above the tail pipe, but there is plenty of room on the

rear wall of that compartment. I don't think that it is any warmer

than above the batteries. Either would be fine I suppose but I

wouldn't want to make servicing the batteries a problem.

>

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

> ----- Original Message -----

> From: Curt Sprenger

> To:

"WanderlodgeForum%40yahoogroups.com"

> Sent: Sunday, October 05, 2008 8:19 PM

> Subject: Re: [WanderlodgeForum] Re: Engine Room Temperature

>

>

>

> Greg, Thanks. Good thought using fuses instead of CBs. I'll add

your suggestion to my project consideration list. I need to get this

project done before the SWBB Flying Flags rally at the end of October.

I plan to take the trailer/bike up there and do a little touring.

>

>

> On Sun, Oct 5, 2008 at 7:16 PM, Gregory OConnor

> wrote:

>

> The 94 engine compartment is loaded up with about 10 cb's the

> problem I found was water passing the hermetic seal on the cb. I

can

> see where heat will be an issue because there is a thin piece of

> metal that holds the contact point against a lug in the cb. I

> believe it is heat that causes the metal to distort and move away

> from the lug.

>

> I wonder if fuses are not a better protection. with a fuse, a

ground

> short will pop it and you will have proof when you do the 10 second

> pretrip taillight test. it could be that a cb opens up 30 seconds

> after you set out on the road and resets itsself for your next

> pretrip check.

>

> gotta be a reason they (auto engineeres) use some cb's and some

> fuses???

>

> I like the way you isolated my trailer light power from throwing my

> bus tail light power.

>

> Greg94ptCa

>

> --- In

"WanderlodgeForum%40yahoogroups.com",

"Curt Sprenger"

>

>

> wrote:

> >

> > My next project is to correctly wire the 7 flat pin trailer

> receptacle. I'd

> > like to install circuit breakers and relays in the engine room. I

> have on

> > hand circuit breakers rated up to 150 (F). They will be installed

> on a

> > panel, and the panel will be located just reward of the junction

> box that

> > contains the battery heater wiring. In using these CBs, am I

> heading for

> > trouble due to the heat in the engine room?

> >

> > --

> > Curt Sprenger

> > 1987 PT38 8V92 "MacAttack Racing"

> > Anaheim Hills, CA

> >

>

>

>

>

>

> --

> Curt Sprenger

> 1987 PT38 8V92 "MacAttack Racing"

> Anaheim Hills, CA

>

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA