[Chics LI]

Guys is there some way I can test or check if my coil is properly operating ie. putting out enough spark. My dist. is also MSD with electronic guts built in and I do not have MSD DIS ignition control box (red box thing).

Tom S.

 

[Ron Schulze]

What is it that leads you to believe it's bad? I have a spark tester, but it goes on the end of the plug wire. Snapon has them.

Ron

 

[Bob Cowan]

Measure the resistance across the primary and secondary coils. Check with the MSD web site or any papers that came with the coil for the exact specs.

 

[Chics LI]

I have an intermittant miss on #8 cylinder. Have replaced spark plug wires.Coil was mounted sideways and after checking around I was told coil should be mounted vertically. Supposedly when coil is mounted sideways the inner windings are not completely covered by oil and the high heat in engine compartment will allow the windings to break down. Anyone else heard of this or is this an "old wives tale"?

Tom S.

 

[Ron Schulze]

A bad coil would affect ALL cylinders, not just #8. How do you know you have a miss only on #8?

Ron

 

[Chics LI]

#8 plug is black and wet(soaked)
#6&7 are dark-----
#'s1-2-3-4 are light tan

Seems to run ok when cold, as engine heats up after pushing it a little I canfeel andd hear that I am missing.

Tom S.

 

[Grembler2]

If you are running a carb, you might have to lean one jet. Might also be a lash problem once everything is warmed up.

 

[1686]

I hope that the sideways mount is an old wives tale! I have mine that way on the "F" panel.