RX7Club.com - Mazda RX7 Forum

2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:
Banzai Racing

Blowing main fuse after running a while?

Thread Tools
 
Search this Thread
 
Old 05-22-13, 10:02 PM
  #1  
Senior Member

Thread Starter
 
BUSTN's Avatar
 
Join Date: Jul 2005
Location: Orlando, FL
Posts: 566
Likes: 0
Received 0 Likes on 0 Posts
Blowing main fuse after running a while?
I've had the issue come and go but tonight it has happened twice. The car will run fine then blow the fuse after 5-10 mins. I am running a 3rd gen alternator without a modified harness and a 80a fuse. I don't know where to start looking and what to do. Any help is appreciated, thank you!
BUSTN is offline  
Reply Like
Old 05-22-13, 10:04 PM
  #2  
Senior Member

Thread Starter
 
BUSTN's Avatar
 
Join Date: Jul 2005
Location: Orlando, FL
Posts: 566
Likes: 0
Received 0 Likes on 0 Posts
I also am running the Taurus fan with the st85 solenoid, if that matters?
BUSTN is offline  
Reply Like
Old 05-22-13, 10:22 PM
  #3  
Moderator

iTrader: (1)
 
satch's Avatar
 
Join Date: Jun 2005
Location: tulsa,ok.
Posts: 11,738
Received 12 Likes on 11 Posts
I believe most people who upgrade their alternators also upgrade the output wire of the alternator because the stock version isn't really up to the task. Might want to start there.
satch is offline  
Reply Like
Old 05-23-13, 08:54 AM
  #4  
MECP Certified Installer

 
jjwalker's Avatar
 
Join Date: Feb 2009
Location: Mesquite, TX-DFW
Posts: 3,176
Likes: 0
Received 2 Likes on 2 Posts
A 3rd gen alternator can output more than 80 amps, so upgrading the wire AND the fuse is a good start.
jjwalker is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Installed UIM gasket, now my engine won't run
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
RX8 13B-REW Swapped. Resonator?
bb6guy
Old School and Other Rotary
10
10-01-18 08:07 AM
FD3S Hesitation 2000-3000RPM
Queppa
New Member RX-7 Technical
8
09-02-18 09:53 AM
Back to Subforum
2nd Generation Specific (1986-1992)
View Next Unread
my rear subframe build thread




Advanced Search
Quick Reply: Blowing main fuse after running a while?


Reply Closed Thread Share

All times are GMT -5. The time now is 10:37 AM.