Chevrolet 10 Series 1968, Service Manual

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SECTION 13
RADIATOR AND GRILLE
CONTENTS OF THIS SECTION
Page
General D e s c r ip t io n ............................................................. 13-1
Radiator Service P r o c e d u r e s ............................................. 13-1
G rille Service P r o c e d u r e s ................................................... 13-7
GENERAL DESCRIPTION
G series trucks with 230 cu. in. engine, G series with
250 cu. in. engine and 3-speed transmission, P10 and
40 trucks and all T series trucks are equipped with
down-flow type radiators. All other models are equipped
with cross-flow type radiators. The cross-flow radiator
is similar to the conventional down-flow radiator except
it is mounted sideways in the vehicle and attached in the
conventional manner. Two retainers, one on each side at
the top, secure the radiator in position.
The 1968 radiators are of copper-brass construction.
All radiators (except P10 models) incorporate drain
cocks,
replacing drain plugs used at start of 1967
production.
This section covers the service procedures on all truck
radiator and grille assemblies. See Section 1A for air
conditioning component replacement, Section 14 for
bumper replacement and Section 11 for Front Sheet
Metal.
RADIATOR SERVICE PROCEDURES
INDEX
Page
Service Operations - 10 thru 30 S e r i e s ..........................13-1
CA, KA and PS-PE20-30 M o d e l s ................................... 13-1
PA10 M o d e l s .......................................................................13-2
PT20-30 M o d e l s ................................................................ 13-2
GE Models, GS Models with RPO L22 and M35 . . . . 13-3
GS Models (Except with RPO L22 and M 3 5 ^ ................ 13-4
Page
Service Operations - 40 thru 60 S e r i e s .......................... 13-4
CA40, CE-C S-M A-SA50-60 M o d e l s ................................ 13-4
CD-CG50, CD60 M o d e l s ................................................... 13-4
PA40 M o d e l s ....................................................................... 13-4
T A M o d e l s ............................. ............................................ 13-5
SERVICE OPERATIONS-10 THRU 30 SERIES
NOTE: When radiator repairs require drain- 3.
ing and saving of the anti-freeze, the following
procedure may be used to facilitate draining
past lower parts:
1. Cut a 1 foot (or longer if desired) piece of 3/8 inch
I.D. hose. g
2. Slip hose onto drain cock spout and route hose past
lower parts. g
3. Open cock and drain coolant into a clean container
— save for later refill. ^
CA, KA AND PS-PE20-30 MODELS (Fig. 1)
8
.
Radiator Replacement
g
1. Drain radiator and disconnect water hoses and pow-
erglide coolant line if so equipped. 10.
2. Remove finger guard, if so equipped (fig. 3).
If vehicle is equipped with a fan shroud, remove
shroud attaching screws and carefully hang shroud
over engine fan assembly to provide clearance for
radiator removal.
Remove screws attaching two retainers to radiator
and support and remove retainers.
Lift radiator up out of lower mounts. Lift shroud
out of vehicle if applicable.
Inspect lower pads and retainers and replace if
necessary.
Lower shroud and radiator into position and secure
shroud with two lower screws.
Install two retainers at top of radiator and shroud
with six screws.
Connect radiator hoses and transmission coolant line,
fill cooling system and check for leaks.
Refer to torque specifications in rear of manual for
correct torque values.
CHEVROLET TRUCK SERVICE MANUAL