Ignition question/issue....

[Walter Atkinson]

Originally Posted by edasmus

Can some of you folks answer a few possibly somewhat silly questions?

1) Which mag is right and which is left on our IO-360-G engines? Is it left and right as viewed from behind the engine or standing in front of the engine at the spinner?

2) If I put the mag switch on "R" on the rear engine and cylinder #5 drops off line, which plug is bad? Is it the top one or the bottom one? Also, I assume in this case, I am turning off the left mag when I put the switch to "R". Is this true?

Thanks for the help.

I'll be a little more detailed with my issue when I have more time to type.

Ed

The mags are left-right as viewed from behind the engine looking at the prop.

The right mag fires the top plugs on the right side and the bottom plugs on the left side. IOW, the mag fires the top plugs on it's own side, bottom plugs on the other side.

In your example, the top plug on #5 is bad.

If wired correctly, when you select LEFT, the right mag is turned off.

Does that help?