Chevrolet 30 Series 1967 Service Manual page 291

General D e s c r ip tio n .........................................................
Component Replacement and A djustm ent........................ 6-11
Engine A s s e m b lie s .........................................................
Rem oval........................................................................
In sta llatio n ..................................................................
Manifold A s se m b ly .........................................................
Rem oval........................................................................
In sta llatio n ..................................................................
Rocker Arm C o v e r.........................................................
Rem oval........................................................................
In sta llatio n ..................................................................
Valve M echanism............................................................
Removal .........................................................................
Installation and A d ju stm e n t.......................................
Valve L i f t e r s ..................................................................
Locating Noisy L ift e r s ................................................
R em oval.............................. * .......................................
In sta lla tio n ..................................................................
Valve Stem Oil Seal and/or Valve S p r i n g .................. 6-16
R e p la c e m e n t...............................................................
Cylinder Head A sse m b lies.............................................
Rem oval.........................................................................
In sta llatio n ..................................................................
Oil P a n ............................................................................
Rem oval.........................................................................
In sta llatio n ..................................................................
The In Line engines covered in this section are the
230, 250 and 292 cu. in. L
truck vehicles.
This section covers the removal and installation of en­
gine assem blies; the removal, installation and adjustment
of some sub-assemblies and replacement of some com­
ponents. For service
assem blies (after removal) and r e m o v a l
sub-assem blies, refer to Section
Overhaul Manual.
COMPONENT REPLACEMENT AND ADJUSTMENT
Engine Assemblies
Removal
1. Disconnect battery cables and drain cooling system.
2. Remove the air cleaner.
3. Perform the following preliminary operations.
ON CS 10-20-30, KS 10-20 SERIES:
• Remove the hood as outlined in Section 11.
• Remove the radiator and shroud as outlined in
Section 13.
ON CS 40-50-60, MS 50, SS 40-50 SERIES:
• Remove the front end sheet metal (with hood and
radiator attached) as outlined in Section 11.
ON GS 10-20 SERIES:
• Remove engine splash shields.
ENGINE MECHANICAL
GENERAL DESCRIPTION
engines used in 10-60 Series
6
to all components and sub-
of some
of the Truck Chassis
6
IN LINE
INDEX
Page
6-11
Oil P u m p ........................................................................ ...6-18
Rem oval............... ........................................................ ...6-18
6-11
In sta lla tio n .................................................................. ...6-18
6-11 Oil Seal (Rear M a in )...................................................... ...6-18
6-13
Replacement
6-14
Torsional D a m p e r ......................................................... ...6-18
6-14
R em oval........................................................................ ...6-18
6-14
In sta llatio n .................................................................. ...6-19
6-14
Crankcase Front C o v e r ................................................ ...6-20
6-14
R em oval........................................................................ ...6-20
6-14
In sta llatio n .................................................................. ...6-20
6-14
Oil Seal (Front C o v e r )................................................... ...6-20
6-14
Replacement.................................................................. ...6-20
6-15
C a m s h a ft ........................................................................ ...6-20
6-15
Measuring Lobe L i f t ................................................... ...6-20
6-15
Rem oval........................................................................ ...6-21
6-15
In sta llatio n .................................................................. ...6-21
6-15
Timing Gears
Replacement
6-16
Flywheel ........................................................................ ...6-22
6-16
R em oval........................................................................ ...6-22
6-16 In sta llatio n .................................................................. ...6-22
6-16
Engine M o u n t s ............................................................... ...6-22
6-17
Replacement ( F r o n t ) ................................................... ...6-22
6-17
Replacement (Rear)
6-17
Because of the interchangeability and sim ilarity of
many engine sub-assemblies and parts, regardless of
which truck vehicle they are used in, typical illustrations
and procedures are used (except where specific illus­
trations or procedures are necessary to clarify the
operation). Although illustrations showing bench opera­
tions are used, most single operations, when not part of a
general overhaul, should be performed (if practical) with
the engine in the vehicle.
(IN LINE)
• Disconnect neutral safety switch wire at connector
(Powerglide).
• Disconnect upper and lower radiator hoses at
radiator.
ON PS 10-20-30-40 SERIES:
• Remove the engine box, drivers seat, floor panel
between stepwells and floor panel around steering
column and pedals as outlined in Section IB .
• Remove the battery.
• Remove the radiator and shroud as outlined in
Section 13.
ON TS 40-50-60 SERIES
• Remove the radiator, radiator support and shroud
as outlined in Section 13.
• Disconnect shfft linkage at control island.
• Disconnect choke cable at carburetor.
............................................................... 6-18
............................................................... ...6-22
............................................................... ...6-22
................................................... ...6-22
CHEVROLET TRUCK SERVICE MANUAL
ENGINE 6-11
Page