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140 ENGINE
6A1-1
SECTION 6A1
2.2 LlTRE 140 CU
.
IN
.
ENGINE. VIN CODE
.
B
CONTENTS OF THIS SECTION
General Description
..................................................................................................
6A1-1
Engine Lubrication
...................................................................................................
6A1-3
On Car Service
.........................................................................................................
6A1-4
Engine Front Cover
..................................................................................................
6A1-4
Accessory Drive Pulley
............................................................................................
6A1-4
Timing Belt and Water Pump
.................................................................................
6A1-5
Checking Timing Belt Tension
...............................................................................
6A1-5
Camshaft Timing Sprocket
......................................................................................
6A1-5
Timing Belt Cover Upper (Camshaft)
...................................................................
6A1-6
Timing Belt Lower (Crankshaft)
.............................................................................
6A1-6
....................................................................................
Crankshaft Timing Sprocket
6A1-7
Oil Pump (Crankcase Front Cover) Seal
................................................................
6A1-7
....................................................................................................
Oil Pan and Bame
6A1-7
........................................................................
Oil Pump Screen and Pick-up Tube
6A1-8
................................................................................................
Oil Seal (Rear Main)
6A 1 -8
........................................................................
Oil Pump (Crankcase Front Cover)
6A1-9
Camshaft Cover
........................................................................................................
6A1-11
Camshaft
...................................................................................................................
6A1-11
......................
...................................
Valve Stem Oil Seal and/or Valve Spring
. .
6A1-13
......................................................................................................
Intake Manifold
6A1-15
Exhaust Manifold
.................................................................................................
6A1-15
Cylinder Head Assembly
..........................................................................................
6A 1 -1 6
Flywheel
....................................................................................................................
6A1-19
Engine Mounts
..........................................................................................................
6A1-19
Cylinder Block
..........................................................................................................
6A 1-27
Oil Filter Bypass Valve
...........................................................................................
6A1-27
Connecting Rod and Piston Assemblies
.................................................................
6A1-20
Connecting Rod Bearings
........................................................................................
6A1-24
Main Bearings
........................................................................................................
6A 1-2 5
Crankshaft
.................................................................................................................
6A 1-26
GENERAL DESCRIPTION
CYLINDER BLOCK (FIG
.
6A1-1)
The cylinder block is made of cast aluminum and has
four cylinders arranged in.line
.
The block is a high silicon
content aluminum alloy throughout for exceptional wear
characteristics
.
Five main bearings support the crankshaft
which is retained by recessed bearing caps that are machined
with the block for proper alignment and clearances
.
CYLINDER HEAD
The cast iron cylinder head provides a compression ratio
of 8.0:l. It is cast with idividual intake and exhaust ports for
each cylinder
.
Valve guides are integral
.
A main head oil
gallery runs along the right side of the head which supplies
oil to the hydraulic lifters and to the camshaft bearings
.
CRANKSHAFT AND BEARINGS
The crankshail is cast nodular iron and is supported by
.
five main bearings
.
Number four bearing is the thrust bearing
.
Main bearings are lubricated from oil holes which intersect
the main oil gallery
.
The main oil gallery is rifle drilled down
the left side of the block
.
CAMSHAFT AND DRIVE
The cast iron camshaft is supported by five bearings
.
The
camshaft is driven through a system of the sprockets and a
fiberglass reinforced rubber timing belt by the crankshaft
.
The crankshaft sprocket is sintered iron and the camshaft
sprocket is cast iron
.
The timing belt drive system also drives
the water pump and fan
.
Camshaft bearings are lubricated
through oil holes which intersect the main head oil gallery
.
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