Mercury 4.3 TKS series, Operation & Maintenance Manual

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Section 4 - Maintenance
90-8M0113857
eng
DECEMBER 2015 Page 35
NOTE: Adding 0.95 Liter (1 US qt) of engine oil will raise the level from the ADD mark to the top of the OK range.
Engine Oil Capacity Fluid type
3.8 Liter (4 US qt) Mercury/Quicksilver 25W‑40 Synthetic Blend Engine Oil, NMMA FC‑W Catalyst Compatible rated
7. Start the engine, run the engine for three minutes, and check for leaks. Stop the engine. Allow approximately five minutes
for the oil to drain into the oil pan. The boat must be at rest in the water.
Power Steering Fluid
Checking
1. Stop the engine and center the sterndrive unit.
2. Remove the fill cap/dipstick and observe the level.
a. Proper fluid level with engine at normal operating temperature should be within the warm range.
b. Proper fluid level with engine cold should be within the cold range.
a - Power steering pump
b - Cold range
c - Warm range
3. Fill to full line with specified fluid.
IMPORTANT: If fluid is not visible in pump, contact your authorized Mercury MerCruiser dealer.
Filling
1. Remove the fill cap/dipstick and observe the level.
2. Add Quicksilver Power Trim and Steering Fluid or Dexron III Automatic Transmission Fluid (ATF) to bring the fluid level up
to the proper level.
Tube Ref No. Description Where Used Part No.
114
Power Trim and Steering Fluid Power steering system 92-858074K01
3. Reinstall the fill cap/dipstick.
Changing
Power steering fluid does not require changing unless it becomes contaminated with water or debris. Contact your authorized
Mercury MerCruiser dealer.
Engine Coolant
Checking
!
CAUTION
A sudden loss of pressure can cause hot coolant to boil and discharge violently resulting in serious injury from burns. Allow
the engine to cool down before removing the coolant pressure cap.
a
b
c
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