TM 5-3895-382-24
Systems Operation Section
Engine Design
SMCS Code: 1000
Type 1 Engines and 9RM Engines
Illustration 1
Cylinder and valve location for Type 1 engines and 9RM engines
(A) Exhaust valves
(B) Inlet valves
NOTE:
Type 1 engines can be identified in two ways.
Method 1 refers to Illustration 1. When the valve
cover is removed, look at the cylinder head
valves. Type 1 engines have two exhaust valves
in a row and two inlet valves that are in a row.
Method 2 does not require the removal of the
valve cover. Refer to the inlet manifold and the
exhaust manifold. Type 1 engines have two
exhaust ports in a row and two inlet ports that are
in a row.
Type................................................... Four cylinder and four stroke
Combustion system .................................................Direct injection
Bore ..................................................................100 mm (3.937 inch)
Stroke.................................................................127 mm (5.00 inch)
Displacement..........................................................4 liters (243 in 3)
Compression Ratio .....................................................................16:1
Number of cylinders ......................................................................... 4
Arrangement of cylinders ........................................................in-line
Firing Order.......................................................................... 1, 3, 4, 2
NOTE:
The front end of the engine is opposite the
flywheel end. The left and right side of the engine
are determined from the flywheel end. The
Number 1 cylinder is the front cylinder.
When the crankshaft is viewed from the front of the engine, the
crankshaft rotates in the following
direction: ........................................................................... Clockwise
NOTICE
Failure to follow recommended procedures for handling or
transporting engines can lead to engine damage.
To avoid possible engine damage, use the following
procedure.
When you are lifting or moving the engine, use the following
procedures in order to prevent engine damage:
1.
Do not tilt the engine to an extreme angle unless the
lubricating oil is first drained from the oil pan.
2.
Do not turn the engine onto a side or an end surface
unless the lubricating oil is first drained from the oil pan.
3.
If the oil is not drained prior to tilting the engine or
turning the engine onto a side or an end surface, the
lubricating oil from the oil pan can enter the closed
crankcase breather system and flow into the intake
manifold and the cylinder bores. This situation could
cause a hydraulic lock in the engine. Hydraulic lock can
damage the engine.
4.
The engine oil should be refilled to the correct level
before the engine is started.
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