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 TB 740-97-4
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 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 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 piston 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, valves stems, push rods,
and the inside of the rocker arm covers will be atomized sprayed with preservative lubricating oil specified herein. The rocker arm
covers will be blocked open in place with spacers 1/4 to 1/2 inch to permit circulation of dry air over the rocker arm mechanism. If
wood or metal spacers dissimilar to the block or cover are used, they will be insulated at point of contact with barrier material
conforming to MIL-B-121, grade A. 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.
2. Engines without compression release start feature. The combustion chambers and valves will be preserved as
specified in 1. above. EXCEPTION: Due to the tendency of the engine to fire and run on the preservative lubricating oil, the
crankshaft will be rocked with the starting motor in lieu of continuous rotation. The engine will be tagged as specified in 1. above.
(c)
Two cycle engines.
1. Engines with intake ports and valves. The fuel throttle will be completely closed. The air box covers on the
side of the engine opposite the blower will be removed. The exhaust manifolds and the rocker arm covers will be removed. The
engine crankshaft will be rotated with the starting motor until the piston in the cylinder to be sprayed is below the intake port. The
spray nozzle will be inserted into the open port. Maximum air pressure will not exceed approximately 25 psi. One half of the
determined amount (a above) of P-10 preservative lubricating oil, type I or II, grade 10, will be sprayed into the open port. The
preservation cycle will be performed on each cylinder until all cylinders have been atomized sprayed with the preservative lubricating
oil, after which the crankshaft will not be rotated. With each exhaust valve manually depressed, the remaining one half of the
determined amount of preservative lubricating oil will be atomized sprayed through each open exhaust valve port. The interior of the
air box covers will be coated with preservative lubricating oil as specified. The air box covers will be reinstalled using new gaskets if
the ones originally used show evidence of damage. The exhaust 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 as specified. The rocker arm covers will be blocked open in
place with spacers 1/4 to 1/2 inch to permit the circulation of dry air over the rocker arm mechanism. If wood or metal spacers
dissimilar to the block or cover are used, they will be insulated at point of contact with barrier material conforming to MIL-B-121,
grade A. 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.
2. Engines without valves. The fuel throttle will be completely closed. The exhaust manifolds will be removed.
The engine crankshaft will be rotated until the piston in the cylinder to be sprayed is below the exhaust port. The spray nozzle will be
inserted into the open exhaust port Maximum air pressure will not exceed approximately 25 psi. One-half of the determined amount
(a above) of P-10, preservative lubricating oil, type I or II, grade 10, will be atomized sprayed through the open exhaust port. The
crankshaft will be rotated until each cylinder has been sprayed through its open exhaust port. The preservation cycle will then be
repeated, alter
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