Volvo Penta TAMD162C, Instruction Book

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Technical description
Engine
Cylinder heads
Individual cylinder heads, one head for each cylinder.
They are interchangeable and bolted into place with 6
bolts.
There is no cylinder head gasket for the joint, but the oil
and coolant passages have inset sealing rings of spe-
cial rubber.
Exhaust Intake
The seven-bearing camshaft is gear driven and located
high up.
The valve lifters are located in the cylinder head and ac-
tivated by the cams via roller. The push rods are rela-
tively short.
The rocker arms work the valves over a bridge, which is
controlled by a spindle located in the head. There are
four valves per cylinder head, two inlet and two exhaust.
Valve system
Crankshaft
The crankshaft is journalled in seven main bearings.
The bearing journals are nitrocarburized. This ensures
a hard surface while avoiding heat stress.
The vibration damper(s)* is/are bolted onto the polygon
hub at the front of the crankshaft. The polygon provides
greater strength at the joint for power take-offs that a
splined or keyed joint.
The rear crankshaft seal is a ring with a lip type seal.
There is no need for a front seal since the front section
of the crankshaft is located inside the timing gear cover.
The gudgeon pin bearing in the connecting rod is trape-
zoid to provide a larger surface area where the load is
greatest.
* Note. The TAMD163A and TAMD163P are fitted with two
vibration dampers.
Cylinder block
The cylinder block and crankcase is cast as one unit us-
ing a special alloy cast iron. This construction together
with reinforcements in the form of steel plates (foot
plates) make for great durability. TAMD163P as of and
incl. engine No. xxxx/27111 and all TAMD163A engines
have a separate ladderframe screwed to the underside
of the cylinder block.
The cylinder liners are of the wet type and are replacea-
ble.