Description And Operation - Drum - Opel 1900 1973 Service Manual

1973 OPEL SERVICE MANUAL
DESCRIPTION AND OPERATION:
Engine Construction
Lubrication System ............................................................
DIAGNOSIS:
Excessive Oil Consumption ............................................
Noisy Valves and Lifters ..................................................
MAINTENANCE AND ADJUSTMENTS:
Valve Lifter Adjustment ..................................................
MAJOR REPAIR:
Engine Removal and Installation ..................................
Engine Oil Pan Removal
Manifold, Cylinder Head, Valve Train and
Lifters
Connecting Rod Bearings ................................................
Crankshaft Bearings and Seals ....................................
Piston, Rings and Connecting Rods ............................
Timing Chain Cover and Timing Chain ......................
Camshaft ..............................................................................
Oil Pump Cover and Gears ............................................
SPECIFICATIONS:
Bolt Torque .Specifications .................................... . .........
General Specifications ......................................................
Engine Dimension and Fits ............................................
DESCRIPTION AND OPERATION
ENGINE CONSTRUCTION
Engine Usage
The 1.9 liter engine is standard equipment on all 1973
Opel 1900, Manta and GT models. This engine has
a compression ratio of 7.6:1 and operates
"regular" low lead grade fuel.
Engine Construction
The is made of high-grade chromium
grey cast iron. The valve guides are cast intergal with
the head. The overhead camshaft is supported in four
bearings in the cylinder head.
ENGINE
CONTENTS
Subject
..........................................................
and Installation ..................
................................................................................
Location of the vzllve seats in
is above the center of cylinder bore. The spark plug
is positioned in the center and near the highest point
of combustion chamber. This arrangement provides
for short flame travel, uniform combustion and good
Exhaust valves
cold start prop&ties.
serts of highly heat and water resisting material. The
head surface is alumetized and so are the seats of the
non- scaling and promotes long life. All engines have
The forged, five main bearing crankshaft has large-
diameter main and connecting rod bearing journals
with considerable overlap for vibration-free operat-
ion. T&metal bearing shells are used for main and
connecting rod bearings. The crankshaft end play is
controlled by the rear main bearing.
Page No.
combustion chamber
in-
have seat