TOHATSU BFT115A Service Manual page 476

CYLINDER BLOCK
Clean the crankcase (1) and lower block (2) mating
surfaces thoroughly with degreasing agent.
Apply 2.0 – 3.0 mm (0.08 – 0.12 in) bead of liquid
sealant (Threebond® 1280B or equivalent) to the
indicated area of lower block mating surface.
• To prevent leaks, do not install the parts if 5 minutes
or more have elapsed since applying the liquid
gasket. Instead, reapply liquid gasket after removing
the old residue.
• After assembly, wait at least 30 minutes before filling
the engine with oil.
Install the dowel pin (18 × 22 mm) (3), ten dowel pins
(13 × 14 mm) (4) to the cylinder block.
Install the lower block to the cylinder block.
Apply engine oil to the threads and seating surface of
the ten bolts (1) and install them.
Tighten the two No.3 journal mounting bolts (2) in two
or three steps to the specified torque.
TORQUE: 70 N·m (7.1 kgf·m, 52 lbf·ft)
After tightening them to the specified torque, completely
loosen them.
Tighten the ten bolts in the numbered sequence shown.
Tighten them in two or three steps to the specified
torque, then tighten them to an additional 56°.
TORQUE: 30 N·m (3.1 kgf·m, 22 lbf·ft)+ 56°
15-28
(2)
(4)
9
5
1
4
8
(1)
(3)
(1)
10
(2)
6
2
3
7