Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
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g. As per the specified sequence, tighten the fixing bolts
*10 of oil sump and the fixing nuts * 12 of oil sump
to 23.5±3.5N.m torque.
h. Use a cotton cloth to wipe away excessive sealant.
5. Install the timing gear chamber.
i. Pre-install the flange O-ring of fuel injection pump
onto the fuel injection pump.
j. Place the fuel injection pump into installation
position, install and pre-tighten the hexagon socket
fixing bolts of fuel injection pump, and install the
fuel injection pump gear and fixing nuts of fuel
injection pump.
k. Tighten large fixing nuts of fuel injection pump to
70±5 N·m and tighten hexagon socket fixing bolts of
fuel injection pump to 30±5 N·m.
l. Install the water pump O-ring onto the water pump
and use hand to rotate the impeller for two turns to
ensure that the water pump rotates flexibly.
m. Install the water pump assembly to the gear chamber.
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