Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 08-10-2012, 12:22 AM   #1
TreeTopFlier
Member
 
TreeTopFlier's Avatar
 
Join Date: Jun 2012
Location: Willamette Valley, Oregon
Posts: 55
Default wacky ammeter question

Has anyone ever seen an ammeter go nuts?

I have switched generators (due to another reason) but both before and after, the ammeter often goes "wacko"

by that i mean it goes from full charge back to full discharge and back and forth super fast! then it levels out and acts normal, etc...

any ideas?
__________________
Oregon Enduring A's Chapter MAFCA
TreeTopFlier is offline   Reply With Quote
Old 08-10-2012, 12:36 AM   #2
Kurt in NJ
Senior Member
 
Kurt in NJ's Avatar
 
Join Date: May 2010
Location: on the Littlefield
Posts: 6,156
Default Re: wacky ammeter question

A wire that has a bare spot and intermittantly grounds out can cause that.
Kurt in NJ is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 08-10-2012, 12:55 AM   #3
Tom Wesenberg
Senior Member
 
Tom Wesenberg's Avatar
 
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
Default Re: wacky ammeter question

Also check for loose or corroded connections in the charging circuit.
Tom Wesenberg is offline   Reply With Quote
Old 08-12-2012, 12:03 PM   #4
TreeTopFlier
Member
 
TreeTopFlier's Avatar
 
Join Date: Jun 2012
Location: Willamette Valley, Oregon
Posts: 55
Default Re: wacky ammeter question

I've looked everywhere... not to say I haven't overlooked a grounded or loose connection, but could it be the ammeter itself?
__________________
Oregon Enduring A's Chapter MAFCA
TreeTopFlier is offline   Reply With Quote
Old 08-13-2012, 05:22 AM   #5
Tom Wesenberg
Senior Member
 
Tom Wesenberg's Avatar
 
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
Default Re: wacky ammeter question

Sponsored Links (Register now to hide all advertisements)
Quote:
Originally Posted by TreeTopFlier View Post
I've looked everywhere... not to say I haven't overlooked a grounded or loose connection, but could it be the ammeter itself?
Yes, I've seen more than a few with burned insulators due to loose or corroded connections on the rear or inside the ammeter.
Tom Wesenberg is offline   Reply With Quote
Reply


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

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 11:18 AM.