Sterndrive Gear Lube; Checking; Filling - Mercury TDI 4.2L Manual

10. Push the filter element onto the protective cap until it is locked. Listen for a click.
11. Install the protective cap with the new filter element into the oil filter housing.
IMPORTANT: When installing the filter element into the oil filter housing, be sure to align the transfer tube on the filter
element with the orifice in the bottom of the filter housing to avoid damaging the filter element.
IMPORTANT: Overtightening the protective cap will cause deformation resulting in oil leakage.
12. Thread the protective cap into the filter housing until the sealing surface contacts the housing. Tighten the protective cap to
the specified torque.
Description
Protective cap
13. Remove the oil fill cap and fill the engine with new oil. Refer to Filling.
IMPORTANT: When filling the engine with oil, always use the dipstick to determine how much oil is required.
14. Start the engine and check for leaks.

Sterndrive Gear Lube

Discharge of oil, coolant, or other engine/drive fluids into the environment is restricted by law. Use caution not to spill oil,
coolant, or other fluids into the environment when using or servicing your boat. Be aware of the local restrictions governing
the disposal or recycling of waste, and contain and dispose of fluids as required.

Checking

NOTE: The gear lube level will fluctuate during operation. The gear lube level should be checked with the engine cold, before
starting.
Check the gear lube monitor to determine the gear lube level. Keep the gear lube level within the recommended operating
range. Refer to Filling.
a

Filling

IMPORTANT: If more than 59 ml (2 fl oz) of High Performance Gear Lube is required to fill the gear lube monitor, a seal may be
leaking. Damage to the sterndrive may occur due to lack of lubrication. Contact your Mercury Diesel–authorized repair facility.
1. If the gear lube level is below or near the "ADD" mark, the specified gear lube must be added.
2. Remove the gear lube monitor cap.
90-8M0114081 DECEMBER 2015
eng
NOTICE
b
Gear lube level shown is at the correct operating range
a - "ADD" mark
b - "OPERATING RANGE" mark
19948
Section 4 - Maintenance
Nm lb‑in.
35 – 25.8
Page 39
lb‑ft