Home 
Home Search search Menu menu Not logged in - Login | Register

 Moderated by: Greg Fletcher
New Topic Reply Printer Friendly
Resistor wire  Rating:  Rating
AuthorPost
 Posted: 04-21-2012 06:57 pm
  PM Quote Reply
1st Post
Mitch Ware
Member


Joined: 03-12-2005
Location: Albany, New York USA
Posts: 204
Status: 
Offline
How many volts should be coming down the resistor wire from the tach to the coil? I've got about 2.5, that seems like way too little. If it is, why would that be?

Mitch Ware
#19670
#11002

Back To Top PM Quote Reply  

 Posted: 10-11-2012 07:40 pm
  PM Quote Reply
2nd Post
answerman
Member
 

Joined: 09-10-2012
Location: Little Chute, Wisconsin USA
Posts: 381
Status: 
Offline
I just kind of asked the same question in a different thread and haven't gotten a response yet. I was asking what the actual resistance of the wire (or ballast resistor, which is what I have) should be.

Back To Top PM Quote Reply

 Posted: 10-11-2012 10:05 pm
  PM Quote Reply
3rd Post
chiromaster
Member
 

Joined: 03-22-2010
Location: Phoenix, Arizona USA
Posts: 37
Status: 
Offline
I just pulled off the resistor wire off the + side of the coil and got 11.60v

Back To Top PM Quote Reply  

 Posted: 10-17-2012 04:37 pm
  PM Quote Reply
4th Post
subwoofer
Member
 

Joined: 04-01-2008
Location: Sandefjord, Norway
Posts: 582
Status: 
Offline
chiromaster wrote:
I just pulled off the resistor wire off the + side of the coil and got 11.60v


Opening the circuit like that will always get you the battery voltage, no matter the value of the resistor.

My suggestion would be to get rid of the resistor (wire), install a 12V coil - like a Lucas Sport Coil or a blue Bosch coil - and a Pertronix Ignitor-II. You will not regret it, and the tach will still work. No points to set ever again, and easier starting.

--
Joachim

Back To Top PM Quote Reply

 Posted: 10-17-2012 04:39 pm
  PM Quote Reply
5th Post
subwoofer
Member
 

Joined: 04-01-2008
Location: Sandefjord, Norway
Posts: 582
Status: 
Offline
Mitch Ware wrote:
How many volts should be coming down the resistor wire from the tach to the coil? I've got about 2.5, that seems like way too little. If it is, why would that be?


Could be:
1. You have a flaky connection somewhere adding resistance to the circuit.
2. The coil is a low-resistance type
3. the coil has an internal short

--
Joachim

Back To Top PM Quote Reply  

Current time is 11:40 am  
> Jensen Healey & Jensen GT Tech > Electrical & Instruments > Resistor wire Top




UltraBB 1.172 Copyright © 2007-2011 Data 1 Systems