Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > Porsche 964 & 993 Technical Forum

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Dec 2016
Posts: 21
Garage
92 964 Alternator Burned

Any help is appreciated. After leaving my car sitting all summer i found the battery to be dead. I purchased an automatic charger and charged the car for 2 days with the battery cables removed. I then proceeded to install the cables and i found it odd to have the terminals spark as i attempted to connect them to the battery posts. A minute or so after i began to hear fans running and smoke coming from the engine compartment. I popped the hood to find my alternator on fire. I had not experienced that in the past. Any thoughts as to what could have caused it and what the extend of the damage might be?

Thank you all.
Old 09-20-2017, 07:48 PM
  Pelican Parts Technical Article Directory    Reply With Quote #1 (permalink)
Registered User
 
Join Date: Apr 2006
Location: Ellicott City, MD
Posts: 298
Quote:
Originally Posted by mmoe View Post
I popped the hood to find my alternator on fire. I had not experienced that in the past.
Hmm.




Andreas
__________________
1995 993 Coupe
Polar Silver - Black
Old 09-23-2017, 05:36 PM
  Pelican Parts Technical Article Directory    Reply With Quote #2 (permalink)
KNS KNS is offline
Registered User
 
Join Date: Jan 2004
Posts: 5,175
First thought is that you connected the battery (pos/neg cables) backwards.
__________________
Kurt
1984 911 Carrera
Old 09-24-2017, 07:30 AM
  Pelican Parts Technical Article Directory    Reply With Quote #3 (permalink)
Registered User
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: seattle wa usa 206.789.6800
Posts: 16,697
You charged the battery backwards, perhaps. It can be done with a totally dead battery and no sparks to tell you the charger's clamps are on wrong. If so, say goodbye to the computer.
__________________
jwworkshop@aol.com 206 789 6800
7613 greenwood ave n seattle wa 98103

Last edited by john walker's workshop; 09-27-2017 at 02:23 PM..
Old 09-26-2017, 04:16 PM
  Pelican Parts Technical Article Directory    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Jun 2009
Location: Kentucky
Posts: 607
Garage
IF you did NOT charge the battery backwards and you did NOT re-install the battery backwards, did you disconnect and reconnect the cables in this order:

1.Disconnect neg. cable first
2.Disconnect pos. cable second
3. Reconnect pos. cable first
4.Reconnect neg. cable last
?

If not done in that order, you can reverse the polarity of the diodes within the alternator and/or voltage regulator and that is harmful.
Old 10-04-2017, 07:01 PM
  Pelican Parts Technical Article Directory    Reply With Quote #5 (permalink)
Registered User
 
Join Date: Dec 2016
Posts: 21
Garage
I can be sure I didn't charge the battery in reverse but I cannot recall whether or not I disconnected and reconnected the cables in the appropriate order. Is there a way to fix this?
I thank you all for your help.
Old 11-15-2017, 01:31 PM
  Pelican Parts Technical Article Directory    Reply With Quote #6 (permalink)
 
Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
Registered User
 
Join Date: Dec 2016
Posts: 21
Garage
I have a new alternator and voltage regulator but I'm afraid to install them if there is something else more serious.
Old 11-15-2017, 01:34 PM
  Pelican Parts Technical Article Directory    Reply With Quote #7 (permalink)
Registered User
 
Join Date: Dec 2016
Posts: 21
Garage
Could this be caused by possibly a bad ignition switch?
Old 11-15-2017, 01:39 PM
  Pelican Parts Technical Article Directory    Reply With Quote #8 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 02:45 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2017 Pelican Parts LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.