Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 162Get this manual
Cylinder Head Installation 1Apply engine oil to the threads of each mounting bolt and seat surface2Fasten cylinder head with eight bolts
4Refer to Section Part for timing belt installation
aTiming Belt
aBolts -M8 (3) 2.36 in(60 mm) LongBoltsM8 (3) 1.77 in(45 mm) LongBolts -M6 (2) 1.38 in(35 mm) Long
Electrical Mounting Plates
Install electrical mounting plates as shownb