Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 159Get this manual
Crankshaft Assembly 1Lubricate the thrust bearings and crankshaft with oil2Place thrust bearing (oil grooves on the crank side) on each end of the crankshaftPlace crankshaft into the cylinder block3Position the tabs on the thrust bearings into the notches in the cylinder blocka c
Crankshaft Cover
1Install dowel pins into cylinder block2Lubricate inside of oil seals with 2-4-C wTeflon3Install upper and lower oil sealsInstall oil seals so numbers are facing outc a
28271 28275
aThrust Bearings (Oil Grooves Towards Crank)Oil GroovesTabs -Position Into Notches
aDowel Pin (2)Upper Oil SealLower Oil Seal