RV Trip Planning Discussions

Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > Vintage RV's
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 05-09-2013, 08:43 PM   #15
Senior Member
Join Date: Sep 2012
Posts: 454
Wall mounted hen weigh.

Mystery is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-03-2013, 09:20 AM   #16
Junior Member
Join Date: Jun 2011
Posts: 8
Ok, finally got around to replacing the isolator. Checked voltages on the lines going into the left side of the isolator with engine running and got 15+ volts, but just a trickle coming out of the right side which I assume is the house battery. However, when a removed the second wire (the one I assume is the alternator feed) from the left post and connected it to the center, almost all voltage dropped to below 1. Got the same reaction with the new isolator in place. I'm wondering if the alternator is thinking no charge is needed since the isolator would block return current? Appears to be three posts on the back of the alternator (160 Delco Remy 28SI). Took pictures but forgot my cell phone at home today. There is a smaller red wire coming off the back that is not connected to anything. Also the main wire that should be going directly to the isolator disappears under the coach into a mass of about 100 similar looking wires, distination unknown. With current of 15+v when I first checked the 'bad' isolator hook-up, I am guessing that this is the alt cable on the return trip from who knows where. I will try to get those pictures of the back of the alternator posted as soon as I can.

Captrv is offline   Reply With Quote
Old 06-03-2013, 10:11 AM   #17
Senior Member
tompen's Avatar
Join Date: Dec 2012
Posts: 506
Remove the 3 larger wires from the isolator. Be careful. With the engine running the wire with 15 + - will be the alternator. That goes on the center. One of the other wires is the coach battery and should have the same voltage as the coach battery with shore power unplugged. The last wire will go to the chassis battery and should have that voltage on it. If you have 0 volts on either wire you have a broken circuit to that battery. If the voltages are correct, they go on the outer terminals of the isolator. To check the isolator, voltage is allowed to go from the center to both outer terminals but not back. An ohm meter will clear this up quickly.
Good luck.

2014 KZ Durango Goldrush
2018 Chevy 2500 HD Duramax/Allison
tompen is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:09 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.