Tachometer Drive Unit; Valve Clearance - International Harvester Company CUB Operator's Manual

MINOR ENGINE SERVICE OPERATIONS
VALVE CLEARANCE ADJUSTMENT -Continued
Adlusting the Clearance -Continued
7. Replace the valve cover. Check to see
that the valve cover gasket makes an oiltight
seal with the crankcase. Replace the gasket if
necessary.
8. Replace magneto cable lIB" (Illusts. 29 and
29A) or distributor-to-coil cable f'A" (Illust. 31A)
into the socket from which it was removed.
Note: Be accurate -use a feeler gauge for
checking the valve clearance.
Illust.43
Battery ignition unit and tachometer drive.
TACHOMETER DRIVE UNIT
Assemble the tachometer drive gear and
housing, complete with the gasket, into the
distributor drive housing (1IIust. 43). Assemble
the retainer plate, screws, and lock washer s
and tighten them securely.
If for any reason the drive gear housing
must be removed, proceed as follows:
Remove the two screws and the tachometer
drive housing retainer plate. Then remove the
housing and drive gear assembly.
If the drive gear housing is disassembled
for any reason, inspect the drive gear and re-
place it with a new one, if necessary. Before
reassembly, apply ill Magneto Ball Bearing
Grease (359 766 R9l) or #2 multi-purpose
lithium grease to the space and bearing sur-
faces shown in Illust. 43A.
To prevent failures of the tachometer drive
shaft and tachometer drive gear, it is impor-
tant for the drive shaft to follow a smooth even
path from the distributor drive housing to the
tachometer. No bend in the shaft should be
sharper than a S-inch radius.
Illust. 43A
Tachometer drive installation diagram.
4-