GMC 1976 ZEO 6083 Maintenance Manual page 447

drive gear housing and engage clutch with shift lever
yoke .
5 . Apply sealer, No . 1050026 or equivalent on
solenoid flange as shown in (figure 78).
6. Position field frame against drive gear housing
using care to prevent damage to brushes.
7. Lubricate commutator end-frame bushing
with lubricant 1960954 or equivalent .
8. Install washer on armature shaft and slide end
frame onto shaft then install and tighten through-
bolts.
9 . Connect the field coil connector to the motor
solenoid terminal .
10 . Check pinion clearance as outlined under
PINION CLEARANCE.
PINION CLEARANCE
Whenever the cranking motor has been disassem-
bled or the solenoid has been replaced, it is necessary
to check the pinion clearance. Pinion clearance must
be correct to prevent the buttons on the shift lever
yoke from rubbing on the clutch collar during crank-
ing.
To check, connect a voltage source of approxi-
mately 6 volts between the solenoid switch terminal
and ground . (figure 78)
SOLENOID BODY
SOLENOID SWITCH
TERMINAL
FLANGE
A-1891
Figure 78-Solenoid Terminals and Sealing
ENGINE ELECTRICAL 6Y- 6 7
NOTE :
If a 6-volt battery is not available, a 12-
volt battery may be used PROVIDING ONLY
THREE CELLS ARE CONNECTED IN SE-
RIES . TO PREVENT MOTORING, CON-
NECT A HEAVY JUMPER LEAD FROM
THE SOLENOID MOTOR TERMINAL TO
GROUND .
Energize the solenoid to shift the clutch, push the
pinion back as far as possible to take up any move-
ment, and check the clearance with a feeler gauge.
(figure 79) . The clearance should be .010" to .140" .
Means for adjusting pinion clearance is not prov-
ided on the starter motor. If the clearance does not
fall within limits, check for improper installation and
replace all worn parts.
STARTER INSTALLATION
1 . Connect the wires to the starter solenoid.
2. Position starter motor and secure with two
bolts.
Figure 79-Checking Pinion Clearance