Mercury MerCruiser 4.3 TKS User Manual

Section 5 - Maintenance
Page 50 90-899883179 OCTOBER 2007
2. Remove the bilge drain plug.
3. Pull tether through the bilge drain.
4. Place the oil drain hose in a suitable container.
5. Remove the drain plug from the oil drain hose.
6. After oil has drained completely, install the drain plug in the oil drain hose.
7. Push the hose through bilge drain and install the plug.
ENGINE OIL DRAIN PUMP
1. Loosen the oil filter to vent the system.
2. Remove the dipstick.
3. Install the oil pump onto the dipstick tube.
mc70571-1
a
c
b
a - Typical oil pump
b - Dipstick tube
c - Oil drain hose
4. Insert the hose end of the crankcase oil pump onto an appropriate container and, using
the handle, pump until the crankcase is empty.
5. Remove the pump.
6. Install the dipstick.
CHANGING FILTER
1. Remove and discard oil filter.
2. Coat sealing ring on new filter with engine oil and install.
3. Tighten oil filter securely (following filter manufacturer's instructions). Do not
overtighten.
4. Remove oil fill cap.
IMPORTANT: Always use dipstick to determine exactly how much oil is required.
5. Add recommended engine oil to bring level up to the bottom of the OK range on the
dipstick.
6. With the boat at rest in the water, check the oil level and add specified fluid to bring the
oil level up to, but not over, the full or OK range.
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
Engine Oil Capacity Fluid type
4.3 TKS 3.8 liters (4 U.S. qt.)
Mercury Full‑Synthetic MerCruiser Oil 20W‑405.0 TKS
4.25 liters (4.5 U.S. qt.)
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.

Mercury MerCruiser 4.3 TKS Specifications

General

Brand	Mercury
Model	MerCruiser 4.3 TKS
Category	Engine
Language	English