level, which should be 2/3 full. If the level is below that, add coolant (only ethylene glycol or propylene
glycol) in the appropriate mixture with distilled water. DO NOT overfill the tank. DO NOT mix anti-freeze
types. See the Storage and Winterization section of this manual for additional details regarding coolants.
Step 3: If the tank was completely empty, see your MasterCraft dealer for assistance immediately as your engine
cooling system needs purging. This function should be completed only by a trained MasterCraft service technician.
Check the alternator belt for
looseness or damage
Because this process should be completed
while the engine is cool and cannot cause burns
to your skin, we recommend you do this before
starting your boat.
Step 1: Ensure the engine is OFF and the
engine safety switch disconnected. Be certain
that the throttle/shift control lever is in neu-
tral. Open the engine compartment and lo-
cate the alternator belt.
Step 2: Check the alternator belt tension at
the top, midway between the circulating pump
pulley and the alternator pulley. The belt
should be tight enough so that it will deflect
no more than one-quarter to one-half inch
when pressed with the thumb or finger.
Note: If the belt is too tight, excessive
belt and bearing wear can occur. If the belt
is too loose, slippage can occur, resulting in
low alternator output and rapid belt wear.
Step 3: If your engine is not equipped with
a belt tensioner, loosen the alternator mount-
ing hardware and tighten the hardware. Re-
check the belt tension. On engines with ser-
pentine belt systems, however, no change is
necessary. Belt tension is maintained by the
automatic belt tensioner.
Step 4: Check the underside of the belt
that actually runs in contact with the pul-
leys. Look for signs of excessive wear, cuts or weakness across or in the grooves. If there are any, replace
the belt. We recommend contacting your MasterCraft dealer for service assistance.
BEFORE EACH USE
17-2
Failure to maintain your coolant at the proper level can cause
engine damage. Your warranty will not cover engine damage
due to overheating or any other cause associated with improper
coolant levels.
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