hei coil

[seahunter]

The biggest killer of coils is vibration. The way you mounted your coil cantilevered off the side of the motor isn’t helping any.

The coil below is very similar to the side mount I used. I threw away the old coil bracket and used a piece of 1" x 1/8" x 6" lg. flat stock to attach the coil to the mounting holes on the motor cover. With the side mount, the coil sits parallel to the motor so it sticks out even less than the original setup.

http://cgi.ebay.com/ebaymotors/Brand...item3365945185

[madoc1]

thx sea. it looks as tho it has the =and- markings also. think i will try that. the original ez set is back on it and it runs good, but frustrating i can't the hei setup to work properly.

yes camo. this should work on your's. search "hei" and read all about it.

[seahunter]

Originally Posted by madoc1

thx sea. it looks as tho it has the =and- markings also.

What is your hang-up with the terminal designations?

A very simple check with a voltmeter will tell you which is which. Besides, you have a 50/50 chance of getting it right the first time. If you get it wrong, just reverse the two wires and be done with it.

[madoc1]

so how do you check with an ohmeter? i take roady's word that coils can explode if wired wrong.

post #5

[seahunter]

Originally Posted by madoc1

i take roady's word that coils can explode if wired wrong.

A solid state coil can not explode and you cannot “explode” even an oil filled coil simply by reversing the polarity of the coil by hooking the positive and negative coil wires up backwards. The worst thing that can happen is that the spark would jump from ground electrode to the center electrode instead of the center electro to the ground. This would cause roughly a 20% loss of spark.

To "explode" an oil filled coil, it would have to be shorted internally or have an short somewhere in the ignition system that pulled enough amperage to boil the oil inside causing it to "explode" from the pressure. Again, not going to happen by reversing the wires.

Originally Posted by madoc1

so how do you check with an ohmeter?

I posted the instuctions on how determine the polarity earlier on this thread.

[camojfk]

thanks madoc