Service Manual for WP6 Diesel Engine
21
24 Maintenance for Long-Term Storage
241 Cleaning
Before putting the engine in storage, all rusty areas must be removed in a proper way, and all parts
that have been processed with protective agent (lubricant circuit, fuel system, turbocharger etc.)
must be cleaned thoroughly.
242 Protection
(1) Drain all engine oil in fan heater out and clean engine oil filter, add slushing oil into engine oil
sump.
(2) Drain all fuel in fuel system out, and add slushing oil instead to protect the fuel circuit.
(3) If the diesel engine is not filled with cooling emulsion, after draining cooling water out, cooling
emulsion and slushing oil should be filled into cooling water jacket for protection. Before
putting the engine in storage, run it idly with the emulsion and slushing oil for 15~25min.
(4) Remove the cover plate on intake pipe end face, and inject slushing oil into the pipe with
pressure nozzle. During the injecting, you should rotate the crankshaft with hand to open air
valve, so that slushing oil can get to combustion chamber. Once all storage work is done, never
rotate the crankshaft again to prevent oil coated on cylinder wall being scraped.
(5) Drain all kinds of oil and fluid in the engine out, open the valve on engine base to drain
slushing oil or pump it out with a pump, drain cooling emulsion in cooling system out, all drain
valves should be kept open.
(6) Remove the rocker shield, and then inject slushing oil into air valve spring and rocker.
(7) All engine processed parts and easy to be corroded parts must be applied with preservative oil.
After finishing the above procedures, the engine can be stored.
To prevent humid air and impurities infiltrating into the engine, all open ports (intake
pipe, exhaust pipe and cooling pips) should be sealed up with caps during transportation
and storage, and also cover the engine plastic housing properly.
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