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 TB 740-97-4
electrodes and gaskets. While cranking the engine with the starting motor, one half of the determined amount (a above) of P-10
preservative lubricating oil, type I, grade 30 will be atomized sprayed into each cylinder through each spark plug opening. The nozzle
will be inserted into the combustion chamber and maximum air pressure for spraying will not exceed 25 psi. Without cranking the
engine, the additional one half of the determined amount of the preservative lubricating oil specified herein, will be atomized sprayed
into each cylinder through each spark plug opening, after which the crankshaft will not be rotated. The spark plug threads will be
coated with the preservative lubricating oil specified herein. The spark plugs will be reinstalled. A tag will be prepared indicating:
"ENGINE PRESERVED-DO NOT CRANK UNTIL ISSUED TO THE USER". The tag will be attached near the engine start control
switch.
(2) Compression-ignition engines (diesel and multifuel). After the engines have cooled to a cylinder head temperature of 100
F., or less measured at the injector nozzle flange area surfaces of each cylinder, the combustion chambers and valves of
compression-ignition engines will be preserved as follows:
(a) Four-cycle spark ignition (gasoline) starting engines. The intake manifolds, the exhaust manifolds and the rocker arm
covers will be removed. The engine controls will be set for gasoline operation. The diesel or multifuel throttle will be completely
closed. The spark plug wires will be disconnected. Each intake valve will be manually depressed and while each valve is held open,
one fourth of the determined amount (a above) of P-10 preservative lubricating oil, type I or type II, grade 10 will be atomized sprayed
into each cylinder through the intake ports. The nozzle tip will be inserted into the port. The maximum air pressure for spraying will
not exceed approximately 25 psi. Each exhaust valve will then be manually depressed and while each valve is held open, one fourth
of the determined amount of the same type and grade of preservative lubricating oil as specified, will be atomized sprayed through
each open exhaust port into each cylinder. In addition to the determined amount, 1/4 ounce of the preservative lubricating oil
specified herein will be atomized sprayed into each starting valve port. With the valves released, the engine crankshaft will then be
rotated until all pistons have completed a full cycle. The preservation cycle will then be repeated, after which the crankshaft will not
be rotated. The spark plugs will be removed. Care will be exercised to prevent damage to the threads, electrodes, and gaskets. The
spark plug threads will be coated with the preservative lubricating oil as specified. The spark plugs will be reinstalled. The exhaust
manifolds and intake manifolds will be reinstalled using new gaskets, if the ones originally used show evidence of damage. The
rocker arm assemblies, springs, guides, valve stems, push rods, and the inside of the rocker arm covers will be sprayed with the
preservative lubricating oil specified. The rocker arm covers will be reinstalled using new gaskets, if the ones originally used show
evidence of damage. A tag will be prepared indicating: "ENGINE PRESERVED-DO NOT CRANK UNTIL ISSUED TO THE USER."
The tag will be attached near the engine start controls.
(b) Four-cycle, straight diesel or multifuel engines.
1. Engines with compression release start feature. The intake manifolds, the exhaust manifolds, and the rocker arm
covers will be removed. The fuel throttle will be completely closed. Each intake valve will be manually depressed, and while each
valve is held open, one fourth of the determined amount (a above) of P-10 preservative lubricating oil, type I or type II, grade 10, will
be atomized sprayed into each cylinder through each open intake port. The nozzle tip will be inserted into the open port. The
maximum air pressure for spraying will not exceed approximately 25 psi. Each exhaust valve will then be manually depressed, and
while each valve is held open, one fourth of the determined amount of the preservative lubricating oil will be atomized sprayed into
each cylinder through each open exhaust port. The compression release will be set in the "OFF" position. With the valves released,
the engine crankshaft will be rotated with the starting motor until all pistons have completed a full cycle. The preservation cycle will
then be repeated, after which the crankshaft will not be rotated. The exhaust manifolds and intake manifolds will be reinstalled using
new gaskets, if the ones originally used show evidence of damage. The rocker arm assemblies, springs, guides, valve stems, push
rods, and the inside of the rocker arm covers will be atomized sprayed with preservative lubricating oil. The rocker arm covers will be
installed, using new gaskets if the ones originally used show evidence of damage. A tag will be prepared indicating: "ENGINE
PRESERVED - DO NOT CRANK UNTIL ISSUED TO THE USER". The tag will be attached near the engine start controls.
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