Which coil for 4.3

stiteler22

Cadet
Joined
May 29, 2010
Messages
7
Replacing coil on my 4.3 and says to use external ressitor,i dont see one any where on the motor, is it the ignition amplifier? Can i use one with an internal resistor? Thanks
 

sgm26

Cadet
Joined
May 31, 2010
Messages
12
Re: Which coil for 4.3

Replacing coil on my 4.3 and says to use external ressitor,i dont see one any where on the motor, is it the ignition amplifier? Can i use one with an internal resistor? Thanks


While troubleshooting an ignition problem I replaced the coil, and the new one said use external resistor. I was not sure either but it worked fine. Of course I saw the one listed for sale for the the 4.3 l was without external resistor so I too would also like to know what is up
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: Which coil for 4.3

...so what 4.3 and distributor do you have?

...and who said use external resistor?
 

sgm26

Cadet
Joined
May 31, 2010
Messages
12
Re: Which coil for 4.3

I have the thunderbolt IV ignition.

"Use with external resistor" is written on the coil.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Which coil for 4.3

Engine serial number is what's needed.
 

sgm26

Cadet
Joined
May 31, 2010
Messages
12
Re: Which coil for 4.3

The engine serial number is:OF294501.

As I said, the engine seemed to run fine with the new coil but the "external resistor" statement was not on the old coil (mercruiser serial # 392-805570-1)
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Which coil for 4.3

sgm26, you need to start a thread of your own. My reply was to the original poster.
Please don't hijack his thread and make it all about you and your problem.
 
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