Changing Transmission Fluid; Draining Transmission - Mercury MerCruiser MCM 454 Mag MPI Service Manual

SERVICE MANUAL NUMBER 23

Changing Transmission Fluid

Draining Transmission

1. Clean area around drain plug shown.
2. Remove dipstick and then remove drain plug. Drain oil from transmission into a suitable
3. Check oil for the following foreign matter:
NOTE: Coat threads of bushing with Quicksilver Perfect Seal and install in transmission
case if bushing came loose with elbow fitting. Torque bushing to 25 lb. ft. (34 N·m).
4. Coat elbow fitting threads with Quicksilver Perfect Seal and install in bushing. Tighten
5. Reconnect hose and tighten securely.
6. Refill transmission with specified fluid. Refer to "Filling Transmission".
Index
90-861326--1 MARCH 1999
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container.
Typical MIE Transmission
a - Drain Plug
Metal Particles - A few small particles are normal. Larger metal chips are an early
sign of transmission failure which may mean transmission should be disassembled
and inspected for internal damage.
Rubber Particles - Indication of cooler hose wear. Hoses should be inspected for
cracks or fraying. Replace damaged hoses.
securely.
VELVET DRIVE 5000V V-DRIVE TRANSMISSION
a
74604
Page 8C-11