2001 Mercury Mariner 50-60HP Factory Service Manual, Page 24Get this manual

2001 Mercury Mariner 50-60HP Factory Service Manual, Page 24

MAINTENANCE
Timing Belt Inspection
1Inspect the timing belt and replace if any of the following conditions are foundaCracks in the back of the belt or in the base of the belt teethbExcessive wear at the roots of the cogscRubber portion swollen by oildBelt surfaces roughenedeSigns of wear on edges or outer surfaces of belt
aTiming Belt