WorksheetsIgnition Systems
Total questions: 10
Worksheet time: 5mins
If the engine stops abruptly and refuses to start:
it is out of gas
the problem may be in the ignition system
the spark plug is no good
none of these are correct
A spark plug may not fire if:
it is badly fouled with carbon
the electrodes are too widely gapped
none of these are correct
If the flywheel key is sheared:
the timing may be out-of-phase
replace it with a stronger key
regap the pins to allow for flywheel shift
none of these are correct
The breaker points are gapped correctly:
if you assemble the flywheel with a zinc key
if the distance is .020" when they are fully open
when the volt-ohmmeter reads zero
when the tester reads .24 MFD
A magnetic-coil-condenser tester is used to check the coil. The coil is good if:
you get a mid-range reading and no arc showing in the "spark" window
the tester reads between .18 to .24 MFD
you get no reading and an arc showing in the spark window
none of these are correct
The magneto-coil-condenser tester is used to check condenser leakage. If the condenser leaks, the meter should:
read between .18 to .24 MFD
not show a light in the leakage window
none of these are correct
If you forget to install the breaker plunger:
the points will not operate
the points will operate anyway but slower
only the breaker arm will move
the engine will run slow
Use a new spring when you assemble the points. The spring:
opens the points
sets the correct gap
closes the points
none of these are correct
A zinc key is used to line up the crankshaft and the flywheel. They must be correctly aligned because:
the key drives the flywheel
the alignment controls ignition timing
the flywheel is balanced
all of these are correct
The starter clutch is attached to the crankshaft:
by means of a flywheel holder
with a starter clutch wrench
by torquing to 57 foot-pounds
all of these are correct
