TOHATSU BFT250A Service Manual page 433

dummyhead dummyhead
Clean the mating surfaces between the lower main
bearing [1] and bearing cap [2] with a degreasing
cleaning agent.
Apply molybdenum disulfide oil to the crankshaft mating
surface of the lower main bearing.
Install the four lower main bearings onto the four
bearing caps by aligning the tab [3] of the main bearing
with groove [4] of the bearing caps.
Install the eight dowel pins [5] to the four bearing caps.
Install the bearing caps with the arrows [6] facing the
crankshaft pulley side.
Apply engine oil to the eight bearing cap bolts (11 x 105
mm) [7] threads and seating surface, and then install
them.
Install the five side bolts (10 x 60 mm) [8], two side bolts
(10 x 80 mm) [9] and side bolt (10 x 109 mm) [10].
Clean the mating surfaces between the connecting rod
bearing [1] and connecting rod [2] with a degreasing
cleaning agent.
Apply molybdenum disulfide oil to the crankshaft mating
surface of the connecting rod bearing.
Install the connecting rod bearing to the connecting rod
by aligning the tab [3] of the connecting rod bearing with
the groove [4] of the connecting rod.
CYLINDER BLOCK
JOURNAL POSITION
CRANK
SHAFT
PULLEY
SIDE
[7]
[3]
[4]
[8]
[9]
[1]
[3]
[6]
[2]
[5]
[1]
[9]
[10]
[8]
[2]
[4]
15-19