Head Installation; Break-In Procedures - Evinrude 4906B 4HP 1969 Owner's Manual

Installing the gasket and reed plate
head.

HEAD INSTALLATION

Place a head gasket in place on the
NEW
cylinder block. NEVER use automotive
head gasket sealer.
sealer will cause electrolytic
the aluminum faster than you can get to the
bank for money to buy a new cylinder block.
Install the head bolts and tighten them
fingertight, then just a bit more.
the bolts alternately
rounds to the torque value specified in the
Appendix. On the first
bolts to 1/2 the total torque value, on the
second round to 3/4 the total torque value,
and to the full torque value on the third and
final round.
POWERHEAD INSTALLATION
Install the assembled
exhaust housing and tighten
bolts alternately and evenly in three rounds
to the torque value specified in the Appen-
dix. Tighten the bolts to 1/2 the torque
value on the first round, to 3/4 the total
torque value on the second round, and to the
full torque value on the third
round.
Installing the front gasket
to the power-
type
The chemicals in the
action and eat
Tighten
and evenly in three
round tighten the
power head to the
the attaching
and final
to
the reed plate.
CYLINDER BLOCK
Installing the intake manifold over the reed plate.
Install all powerhead accessories
ing the flywheel,
starter, etc. If any doubts or difficulties
are encountered, follow the procedures out-
lined in the chapters covering the particular
component.
The complete outboard unit is now ready
to be started and "broke-in"
the procedures outlined in the next section.

3-16 BREAK-IN PROCEDURES

Mount the engine in a test tank or body
of water.
CA UTION: Water must circulate through
the lower unit to the engine any time the en-
gine is run to prevent damage to the water
pump in the lower unit. Just five seconds
without water will damage the water pump.
Tightening the head bolts
value.
3-41
includ-
carburetor, magneto,
according
to
the proper torque
to