Power Steering Fluid; Checking; Filling; Changing - MerCruiser 4.3 TKS User Manual

Section 5 - Maintenance
NOTE: Adding 0.95 liters (1 quart) of engine oil will raise the level from the add mark to the top of the OK range.
Engine Model
4.3 TKS
5.0 TKS
5.7 TKS
7. Start the engine, run the engine for three minutes, and check for leaks. Stop the engine. Allow approximately 5 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.
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.
Power Trim and Steering
114
Fluid
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

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.
Page 52
Engine Oil Capacity
3.8 liters (4 U.S. qt.)
4.25 liters (4.5 U.S. qt.)
a
Description
!
Mercury Full‑Synthetic MerCruiser Oil 20W‑40
a - Power steering pump
b - Cold range
c - Warm range
b
c
6631
Where Used
Power steering system
CAUTION
Fluid type
92-858074K01
90-8M0053372 NOVEMBER 2010
eng
Part No.