TOHATSU BFT115A Service Manual page 429

INSTALLATION
Turn the crankshaft and set the No. 1 piston at top dead
center of compression stroke (page 3-15).
Clean the cylinder head and cylinder block mating
surfaces.
Install the two dowel pins (1) to the cylinder block.
Install a new cylinder head gasket (2) with its tab (3)
positioned as shown.
Install the cylinder head onto the cylinder block by
aligning the dowel pin holes.
Apply engine oil to the threads and seating surface of
each bolt.
Install and tighten the ten bolts (1) to the specified
torque in the numbered sequence in two or three steps.
TORQUE: 40 N·m (4.1 kgf·m, 30 lbf·ft)
Using a torque angle gauge (commercially available),
continue tightening the bolts in two more steps by 90°.
If the bolts are replaced with new ones, further tighten
them by 98°.
TIGHTENING ANGLE:
+ 90°+ 90° (When reusing the bolts)
+ 90°+ 90°+ 98° (When replacing the bolts)
Install the following:
– Camshaft/rocker arm (page 14-31)
– Injector base (page 5-98)
– Exhaust manifold (page 5-107)
– Vapor separator/Fuel pump (high pressure side)
(page 5-101)
CYLINDER HEAD
(1)
(1)
(1)
9
10
5
1
4
8
(3)
(2)
6
2
3
7
14-37