1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 198Get this manual
CYLINDER BLOCKCRANKCASE
Timing Belt
1Inspect timing belt, replace if wornstretcheddamaged
1Replace water jacket anode if partially consumed
a-Bolt-M6x20 b-Plate c-Bolt-M5x12 d-Anode Cover e-Anode f-Rubber Packing