Ignition Coil - TM-10-3930-632-120065

TM 10-3930-632-12

c. Installation. Install the spark plugs using new

as shown in figure 4-23. The required gap is 0.030 inch.

Adjust the gap to this dimension, if necessary, bending

gaskets. Tighten to 35 foot-pounds torque. Connect the

the side electrode only.

spark plug leads to the spark plugs.

4-36. Ignition Coil

a. Testing. To test the ignition coil, pull the

high tension lead from the center contact of the

distributor. Hold the lead by the insulation so that the

end contact is within inch of an unpainted, grounded

portion of the engine. Turn the starter and ignition

switch to START. A hot spark should jump from the

high tension terminal to ground as the engine is

cranked. If no spark is visible and if all wiring is intact,

the coil may be faulty.

b. Removal.

(1) Tag and disconnect the electrical leads

from the ignition coil. Remove the ignition coil as shown

Figure 4-23. Checking Spark Gap

Figure 4-24. Ignition Coil, Removal and Installation

4-38