Description
600 SRM 1068
CAUTION
When setscrews or studs are fitted into holes
which are tapped through the cylinder block, a
suitable sealant must be used to prevent leak-
age.
Micro
encapsulated
anaerobic
sealant
(M.E.A.S.) fasteners have been introduced
instead
of
jointing
compounds
or
other
sealants when the fasteners are fitted in
through holes into oil or coolant passages. The
identification of these fasteners, as supplied,
is by a red, blue, or other color sealant around
the fastener threads.
With M.E.A.S. sealed studs, the sealed end must
be fitted into the cylinder head/cylinder block,
etc.
Ensure that the threaded holes have a
1.59 mm (0.0626 in.), 45
chamfer so that the
M.E.A.S. sealant is not removed. If the fasten-
ers have to be removed and fitted again, the
threads must be cleaned and a suitable sealant
used.
Observe the previous WARNINGS and CAUTIONS
before repairing any equipment.
Description
The cylinder head is cast iron and has one inlet valve
and one exhaust valve for each cylinder. The valve
seats and the valve guides are replaceable. The fuel
injectors are in the cylinder head.
The overhead
valve assembly is actuated by a camshaft inside of
the engine block. A gear train, turned by the crank-
shaft, turns the camshaft, coolant pump, injection
pump, and a power-takeoff (PTO) which is available
for additional equipment. The hydraulic pump for
the steering function or a compressor is normally
turned by the PTO. The fuel pump is actuated by the
camshaft. See Figure 1.
The crankshaft has seven main bearings. The main
bearing in the center of the crankshaft is the thrust
bearing and has thrust washers on both sides of the
bearing.
The cylinder block is cast iron and has cylinder liners
that can be replaced during overhaul.
A Fastram™ combustion chamber in the top of each
piston is designed to give an efficient mix of fuel and
air. Each piston has three piston rings (two compres-
sion rings and an oil control ring). The top compres-
sion ring has a special insert for the groove, to reduce
wear. Axial location of the fully floating piston pin is
by circlips. The piston pin is off-center to reduce the
noise level. A jet for cooling oil to the bottom of the
piston is installed.
The cooling fan and the alternator are turned by a
drive belt. The cooling fan is not connected to the
coolant pump. The coolant pump is turned by the
gear for the fuel injection pump in the timing gear
case.
The timing, speed adjustment, and quantity of fuel
sent to the fuel injectors is controlled electronically
by the Electronic Control Module (ECM).
A Bosch VP30 series fuel injection pump is used on all
1100 VK engines. Special tools are needed to repair
an injection pump, and they are normally sent to an
authorized repair station if repairs are necessary.
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