Johnson J10RLSRD Service Manual page 200

Slide the connecting rod with the needle bearings
and washer up and off the wrist pin, being careful
not to disturb the bearings. Place the connecting
rod and the two wrist pin washers in position in the
piston cavity, aligned with the wrist pin boss.
1
1. Wrist pin washer
COB1137
Finish installing the wrist pin through the connect-
ing rod and the piston until the wrist pin contacts
the installed retaining ring. Check to be sure none
of the needle bearings have been disturbed and
pushed out of the connecting rod. Install a second
new retaining ring.
Install piston rings on each piston. Tapered ring
must be installed in top groove. Spread each ring
with a ring expander just enough to slip it over the
head of the piston and down into place.
Coat the piston and cylinder bore with oil.
Place the piston in Ring Compressor, PIN 339754,
(PIN 339755 for oversize pistons). Make certain
that the rings are correctly positioned in their
grooves with respect to the dowel pins. Damaged
pistons and broken rings may result from imper-
fect alignment of the ring gap and the dowel pins.
POWERHEAD
ASSEMBLY - 9.9/15
IMPORTANT: The piston rings must be correctly
located on their dowel pins to prevent permanent
powerhead damage.
Start the piston into bore of the cylinder with
deflector of the piston (sharp edge) toward intake
port side of the cylinder block.
2
1
1. Piston, deflector 32406
2. Intake port side
IMPORTANT:
Loosely install the cylinder head
to prevent the pistons from falling out.
7
If removed, oil and press a new lower main bear-
ing onto the crankshaft. When pressing on the
bearing, support the crankshaft between the two
lower counterweights and press against the let-
tered side of the bearing. Install the retaining ring
in groove of the crankshaft with sharp edge of the
ring facing away from bearing.
199