Chevrolet 10 Series 1968, Service Manual

Page: 667 / 713

RADIATOR AND GRILLE 13-4
GS MODELS (Without L22 and M35) (Fig. 7)
Radiator Replacement
1. Raise vehicle on hoist.
2. Remove bolts attaching air deflector to radiator
support, frame, and body and remove air deflector.
(Refer to Figure 5.)
3. Remove bolts attaching left and right splash shields
to frame and remove splash shields. (Refer to
Figure 5.)
4. Drain radiator and disconnect radiator hoses and
transmission coolant line if so equipped.
5. Remove lower baffle screws and remove baffle from
vehicle. Remove radiator attaching screws and lower
radiator from vehicle.
6. Install radiator following the removal procedure in
reverse order. Connect radiator hoses and trans­
mission coolant line fill cooling system, and check
for leaks. If no leaks are present, install air de­
flector and splash shields.
7. Refer to Torque Specifications in rear of manual
for correct torque values.
SERVICE OPERATIONS—40 THRU 60 SERIES
NOTE:
CA40-50-60, MA50-60 and SA50-60
trucks are equipped with a fan shroud as shown
in Figure 8. Radiator replacement procedures
for these vehicles include replacement of the
shroud as illustrated.
CA40, CE-CS-M A-SA50-60 MODELS
(Figs. 9 and 10)
Radiator Replacement
1. Drain radiator and disconnect water hoses and trans­
mission coolant line if so equipped.
2. If vehicle is equipped with a fan shroud, remove
shroud attaching screws (fig. 8) and carefully hang
shroud over engine fan assembly to provide clearance
for radiator removal.
3. Remove screws securing radiator retainers to
radiator support and remove retainers and
bumpers.
4. Lift radiator up out of lower mounts. Lift shroud
out of vehicle if applicable.
5. Inspect lower pads and retainers and replace if
necessary.
6. Lower shroud and radiator into position and secure
shroud with bottom attaching screws.
7. Install two retainers at top of radiator and shroud
with four screws.
8. Connect radiator hoses and transmission coolant
line, fill cooling system, and check for leaks.
9. Refer to torque specifications in rear of manual for
correct torque values.
CD-CG50, CD60 MODELS (Fig. 11)
Radiator Replacement
Radiator replacement for these trucks is the same as
outlined in steps 1 thru 9 immediately above. The only
difference is that the cooling system incorporates a
surge tank which does not have to be removed to replace
radiator (Fig. 11). Continue to refer to Figure 8 for fan
shroud removal.
PA40 MODELS (Fig. 12)
Radiator Replacement
1. Drain radiator and disconnect water hoses and trans­
mission coolant line if so equipped.
Fig. 9 —Radiator M ounting—C A 4 0 , C E -C S -M A -S A 5 0 ,
Fig. 8 —Radiator Fan Shroud—C A -S A 4 0 , C A -M A -S A 5 0 -6 0 Models C E -C S -S A 6 0 Models
CHEVROLET TRUCK SERVICE MANUAL