coil trouble??
 

I checked the coil...it had a orange spark so I bought a new one from AutoZone. The guy gave me one for a 350CI inline 6 chevy. I installed it. Question...How hot is too hot for a coil? Does it need a special one? Seems to be the same thing as the ol'one but, gets really hot. TIA.

Sorry, 250 Ci, 165 hp inline 6 chevy block Mercrusier :-[

Re: coil trouble??
 

I've never seen or heard of a inline 6 cyl 350.

But when it comes to a ford a coil is a coil is a coil. I wouldn't worry to much about heat, they get hot even if they are the original coil.

Maybe I'm wrong but if I am someone here will be glad to point it out especially if it comes from a "FNG" like me.

Garage

Re: coil trouble??
 

i think he may be tlaking about a 250ci 6

Re: coil trouble??
 

Doesn't really matter, they're all the same. *Coils do run somewhat hot. *Most coils are designed to run on ~9v, not 12 because they are run in series with a ballast resistor. *If you have converted to electronic ignition and have removed the ballast resistor, you may want to consider an HEI type coil or some other performance coil designed to work with electronic ignition and 12v.

Re: coil trouble??
 

If its getting really hot it sounds like you need a external ballast resistor. The old coil may have had a internal resistor. I know mercruiser used both type of coils.

I know my buddy ran his without the resistor and it died after about 40 min. on the water.

This one here needs external resistor.
http://www.iboats.com/mall/partfinde..._id.189688285/

Re: coil trouble??
 

Its been awhile but I think when I replaced mine it was a non resistor type??

1975 165 hp (Chevy 6 cyl. 250) with points.

Re: coil trouble??
 

The resistor is there to protect the points, not the coil. *I don't know that running without a resistor would cause the coil to burn up. I'd have to do some math to find out the additional wattage.

Re: coil trouble??
 

who cares go to advance or autozone and buy a MSD or Accel Super coil and be done with it they don't need any kind of resistor or this crap.

http://cgi.ebay.com/ebaymotors/ACCEL...63826949QQrdZ1


http://cgi.ebay.com/ebaymotors/Accel...62550370QQrdZ1

Re: coil trouble??
 

good idea skools Accel Super coil would be the way to go

Re: coil trouble??
 

Most of the MSD coils need a resistor unless your running there ignition box with it.