203
Powerhead
Powerhead Disassembly
10
Cylinder Head Removal
Remove thermostat cover and thermostat assem-
bly. Refer to Thermostat Servicing on p. 189.
Loosen in stages and remove cylinder head
screws. Remove the cylinder head. Discard ther-
mostat seal and O-rings.
Connecting Rods and Pistons
Use a permanent marker to identify each connect-
ing rod cap, connecting rod, and piston by cylinder
number. Number 1 is closest to the top.
Use Torquing Socket, P/N 331638, to loosen in
stages the rod cap retaining screws. DO NOT
remove the screws.
Use one hand to support the piston, and remove
the rod cap screws with your other hand. Remove
each piston and rod assembly.
IMPORTANT: Identify all internal components so
that if reused, they can be reinstalled in their origi-
nal positions.
Repeat steps for each remaining piston and con-
necting rod.
1. Cylinder head screws
007850
002140
002123
002141
NOTICE
Reattach each rod cap to its rod as soon as
the piston is removed. Each cap is unique
and can only be installed on its mated rod. Do
not allow rod to contact inside surface of cyl-
inder or crankshaft.
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