Section 5 - Maintenance
90-864197072 NOVEMBER 2007 Page 57
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.
Transmission Fluid
Checking While the Engine is Warm
1. Velvet Drive Transmissions ‑ Stop the engine and immediately check fluid level by
turning T‑handle counterclockwise, to remove dipstick. Fluid level should be up to full
mark. If low, add specified fluid through dipstick tube on transmissions.
2. ZF Marine Transmissions ‑ Stop the engine and remove the dipstick to check level. If
fluid is below top (full) line, add specified fluid through dipstick hole. Do not overfill.
Reinstall dipstick with cap fully seated.
3. Walter V‑Drive Transmissions ‑ Stop the engine and remove the dipstick to check the
level. If the fluid is below the top (full) line, add the specified fluid through the breather
elbow. Do not overfill. Reinstall the dipstick with the cap fully seated.
Checking While Engine is Cold
NOTE: Cold fluid level check: To ease checking the fluid level, the dipstick can be marked
or scribed with a cold level mark.
1. Follow the procedure for the warm fluid level check, then allow the boat to sit overnight.
IMPORTANT: Be sure to push the dipstick all the way down into the dipstick tube when
checking the fluid level.
2. Remove the dipstick, wipe clean and reinsert.
3. Remove the dipstick, observe the fluid level and mark the cold fluid level.
4. Reinstall the dipstick, tighten the T‑handle securely. Do not overtighten.
Changing
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.
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