Reply
 
Thread Tools Display Modes
 
Old 08-24-2010, 02:35 AM   #1
New Member
 
Join Date: Jun 2009
Posts: 9
Default Falcon 190 Isolator?

I have a '92 InterVec Falcon 190 (Ford chassis), and I'm trying to figure out if it has a battery isolator in it or a continuous duty solenoid. Any other Falcon owners out there have insight on this?

Glenn
http://tosimplify.blogspot.com
__________________

glennm01 is offline   Reply With Quote
Old 08-24-2010, 11:49 PM   #2
Platinum Member
 
Mike's Avatar
 
Join Date: Aug 2008
Location: Sarnialabad, The Newly Elected People's Republic of Canuckistan
Posts: 3,207
Default Re: Falcon 190 Isolator?

Near the bottom of this thread, there's a Falcon owner bundy2230 who is available for q&a.
http://www.rvusa.com/forum/mbbs22/forum ... p?tid=4347
Here's another thread with some Falcon owners.
http://forums.woodalls.com/Index.cfm/fu ... 146271.cfm
and this one
http://www.goodsamers.com/members/forum ... page/2.cfm

I googled "1992 intervec falcon 190" to get them.
Do you have any sort of battery disconnect or battery disable/enable switch anywhere in your rig?
Might be a clue that there's an isolator or separator system in place.
Finding it might be a pita. Mine was attached to the inside of the frame just behind the front
passenger side wheel well/tire.
__________________

__________________
It's not a sprint(er) (unless you make it one), it's (hopefully) a marathon.
RV - 2018 Navion 24V + TV - 2016 JKU
Mike is offline   Reply With Quote
Old 08-25-2010, 02:18 AM   #3
New Member
 
Join Date: Jun 2009
Posts: 9
Default Re: Falcon 190 Isolator?

Hi Mike,

Thanks for the links. No battery disable switch that I'm aware of. I'll check the area where your isolator is first thing tomorrow. That's definitely one place I haven't checked!

Glenn
http://tosimplify.blogspot.com
glennm01 is offline   Reply With Quote
Old 08-25-2010, 02:40 AM   #4
Platinum Member
 
Mike's Avatar
 
Join Date: Aug 2008
Location: Sarnialabad, The Newly Elected People's Republic of Canuckistan
Posts: 3,207
Default Re: Falcon 190 Isolator?

Just to clarify, I have a Roadtrek 190.
However, these things can generate a fair bit of heat, so it isn't out of the realm
of possibility that it's near an area where there is free air flow.
If you know what they look like, and you don't mind a scavenger hunt, have a look
under yours, and you might find it.
__________________
It's not a sprint(er) (unless you make it one), it's (hopefully) a marathon.
RV - 2018 Navion 24V + TV - 2016 JKU
Mike is offline   Reply With Quote
Old 09-03-2010, 02:08 AM   #5
Bronze Member
 
obiewan kanobe's Avatar
 
Join Date: Mar 2008
Location: plano, tx
Posts: 21
Default Re: Falcon 190 Isolator?

i have a 1986 model falcon 190 slf. isolators can be a problem. i recently disabled mine after a bad chain of events. i had upgraded my batteries to the heavy duty "dry" type (not really dry). isolators use heavy duty semiconductor diodes to feed power from one alternator to two batteries. the diodes will occasionally "punch through" due to environmental conditions or cheap manufacture. they can become shorted or an open circuit. if shorted, the fireworks begin. one battery can discharge the other or create a bad overcharge situation.

in my case, the 1986 dodge has an external voltage regulator. the regulator apparently gave out after 15 or so years of use in hot texas. the result was an overvoltage condition which destroyed the alternator and cooked the batteries. i am charging manually or through converter and shore power now.

i think the isolator will work with some refinements. the first is a battery disconnect for the coach battery. next would be some dash mounted gauges to monitor voltage and current in both circuits. this would also be a good time to make some modifications, allowing the veh to use the coach battery. i can do this now by moving wires on a terminal block in an emergency.

what you want to prevent is the chain failure i had. extra inline diodes may help, but, may drop a small amount of voltage. study your wiring set up and think ahead of what would happen for:
shorted battery
bad regulator
discharged or open battery
necessity to run chassis system off coach battery

have fun.
obiewan kanobe is offline   Reply With Quote
Old 09-03-2010, 05:44 PM   #6
New Member
 
Join Date: Jun 2009
Posts: 9
Default Re: Falcon 190 Isolator?

obiewan,

Thanks for the input, and sorry to hear about the troubles. Can you tell me where exactly the isolator was located on your Falcon?

Thanks,
Glenn
http://tosimplify.blogspot.com
glennm01 is offline   Reply With Quote
Old 09-03-2010, 07:42 PM   #7
Bronze Member
 
obiewan kanobe's Avatar
 
Join Date: Mar 2008
Location: plano, tx
Posts: 21
Default Re: Falcon 190 Isolator?

on my '86 , it is mounted on the center firewall in the engine compartment. it usually has about three terminals , maybe 4x6 inches and looks like a heatsink for power transistors (sometimes). if you have to replace one, get two, they can be hard to find. the output wire from the alternatoe goes to one terminal (assuming an internal voltage regulator on a '92) the isolator splits this between batteries. one terminal for each battery. good idea to label which is coach and chassis battery very plainly so some mechanic doesn't screw it up when checking something. you may have some other safety diodes in the wiring somewhere . mine has something, i'm not sure (or can't remember) if it is diodes or inline circuit breakers. they are about an inch long. mine are mounted with two screws. these are not part of the isolator, but, could confuse you. they wont matter unless they blow like a fuse.
obiewan kanobe is offline   Reply With Quote
Old 09-03-2010, 10:37 PM   #8
Platinum Member
 
Mike's Avatar
 
Join Date: Aug 2008
Location: Sarnialabad, The Newly Elected People's Republic of Canuckistan
Posts: 3,207
Default Re: Falcon 190 Isolator?

Quote:
Originally Posted by obiewan kanobe
if you have to replace one, get two, they can be hard to find.
I picked one up in D/FW, TX at HDPSI who were the manufacturers of my original isolator. They
have a pretty wide selection of models and capacities, and they will ship to Canada (if you can't
swing by their warehouse). There's a downloadable catalog of what they have. The casing may be
a metallic blue or red in color.
Mine is set up for a GM AC/Delco alternator and had a casing rating of 130 amps but the person
I dealt with said they always put a bit more (diode capacity) inside than the label states. Not too
pricey either.
http://www.hdpsi.com/
__________________

__________________
It's not a sprint(er) (unless you make it one), it's (hopefully) a marathon.
RV - 2018 Navion 24V + TV - 2016 JKU
Mike is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 05:50 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.