2001 Mercury Mariner 50-60HP Factory Service Manual, Page 445Get this manual
NON-BIGFOOT GEAR HOUSING
6Install components as shown9183155 Dial Indicator Adapter Kit
9158222A1 Dial Indicator
91196601 Backlask Indicator 51117
aThreaded Rod (Obtain Locally)Dial Indicator Adaptor Kit (91-83155)WashersDial Indicator (91-58222A1)Backlash Indicator Tool (91-19660-1)Nuts 7Position Dial Indicator on appropriate line (from chart) marked on Backlash Indicator ToolMODEL 5060 (4-Stroke) 5560 (2-Stroke) BACKLASH INDICATOR TOOL 91196601 91196601 ALIGN POINTER OF DIAL INDICATOR WITH MARK OR 0.366 in(9.3 mm) 3