Chevrolet 10 Series 1967, Service Manual

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CLUTCHES AND TRANSMISSIONS 7-41
NOTE: Observe converter when moving the
transmission rearward. If it does not move with
transmission, pry it free of flywheel before
proceeding.
CAUTION: Keep front of transmission upward
to prevent the converter from falling out. Install
converter holding Tool J-9549 immediately (or
a sim ilar tool constructed as shown in Figure
3PG, or, in an emergency, a length of strong
wire may be used) after removal from the
engine.
Installation
NOTE: The "light" side of the converter is de­
noted by a "blue" stripe painted across the ends
of the converter cover and housing. This mark­
ing should be aligned as closely as possible with
the "white" stripe painted on the engine side of
the flywheel outer rim, denoting the "heavy"
side of the engine.
1. Mount transmission on transmission lifting equip­
ment installed on jack or other lifting device.
2. Remove converter holding tool.
CAUTION: Do not permit converter to move
forward after removal of holding tool.
OTHER SERVICE
Although certain operations, such as oil pan or gasket
replacement, valve body, governor, filler pipe "O" ring,
speedometer drive gear, case extension "O" ring and
rear oil seal, vacuum modulator, and servo cover or
gasket service may be performed from underneath the
3. Raise transmission into place at rear of engine and
install transmission case to engine upper mounting
bolts, then install remainder of the mounting bolts.
Torque bolts to 25-30 ft. lbs.
4. Remove support from beneath engine, then raise
rear of transmission to final position.
5. Through flywheel cover opening align as closely as
possible the "white" flywheel balance mark stripe
and the "blue" painted stripe on end of converter
cover and housing. If scribed during removal, align
scribe marks on flywheel and converter cover. In­
stall converter to flywheel attaching bolts. Torque
bolts to 18 ft. lbs. (75 ft. lbs. on 292 cu. in. engines)
6
. Install flywheel cover.
7. Reinstall transmission support cross member to
transmission and frame.
8
. Remove transmission lift equipment.
9. Connect propeller shaft to transmission.
10. Connect manual and TV control lever rods to
transmission.
11. Connect vacuum modulator line, and speedometer
drive cable to transmission.
12. Refill transmission through filler tube, using funnel
J-4264 and following the recommended procedure
provided earlier in this section.
13. Check transmission for proper operation and for
leakage. Check and, if necessary, adjust linkage.
OPERATIONS
vehicle without removing the Powerglide; their service
procedure is covered in the Truck Overhaul Manual and
is not repeated here. Refer to the Powerglide Section of
the Truck Overhaul Manual for all other service oper­
ations not covered here.
DIAGNOSIS
Proper operation of the Powerglide transmission may
be affected by a number of factors, all of which must be
considered when trouble in the unit is diagnosed.
Proper trouble diagnosis can only be accomplished
when performed in a thorough step by step procedure.
The following procedure has been devised and tested and
is recommended for all trouble diagnosis complaints and
if the service man will follow this checking procedure,
accurate and dependable diagnosis may be accomplished.
This will result in a savings of time, not only to the serv­
ice man, but to the customer as well.
WARMING UP TRANSMISSION
Before attempting to check and/or correct any com­
plaints on the Powerglide transmission it is absolutely
essential that the oil level be checked and corrected if
necessary. An oil level which is either too high or too
low can be the cause of a number of abnormal conditions
from excessive noise to slippage in all ranges.
It must be remembered that cold oil will slow up the
action of the hydraulic controls in the transmission. For
this reason a trouble or oil leak diagnosis should not be
attempted until the transmission has been warmed up by
either of the following procedures:
Shop Warm Up
1. Connect tachometer to engine.
2. Set parking brake tight and start engine.
3. Place selector light in "D" (drive) range.
4. Adjust carburetor idle speed adjusting screw to run
engine at approximately 750 rpm and operate in this
manner for two minutes. At the end of two minutes
of operation, the transmission will be sufficiently
warmed up for diagnosis purposes.
NOTE: At this point, readjust the engine idle
speed to 450-475 rpm in "D" range.
Road Warm Up
Drive the vehicle approximately 5 miles with frequent
starts and stops.
NOTE: At this point, make sure the engine
idle speed is set to 450-475 rpm in "D" range.
CHECKING FLUID LEVEL AND CONDITION
After transmission has been warmed up, check the
fluid level with the engine idling, parking brake set and
control lever in "N" (neutral). If the fluid level is low,
CHEVROLET TRUCK SERVICE MANUAL