BOMBARDIER SEA-DOO GS 5626 1998, Shop Manual

Page: 96 / 426

Section 04 ENGINE
Subsection 05 (TOP END)
04-05-21
1. Bevel facing the O-ring
There is only one way to insert the sliding valve
no. 22 in valve housing no. 25 .
1. Sliding valve ridge toward housing groove
3, Piston
At assembly, place the pistons with the letters
“AUS” (over an arrow on the piston dome) facing
in direction of the exhaust port.
1. Exhaust side
NOTE: On the 787 and 947 engines, the exhaust
ports are located on the same side as the intake.
Carefully cover crankcase opening as for disas-
sembly.
4,6, Piston Pin and Roller Bearing
To install roller bearing and piston pin use, piston
pin puller (P/N 529 035 503) with the appropriate
set of sleeves as for disassembly.
– Replacement bearings are held in place by a lo-
cating sleeve outside and 2 plastic cage halves
inside.
– Push needle bearing together with inner halves
out of the locating sleeve into the connecting
rod bore.
– Replace the inner halves by the appropriate
sleeve tool in the connecting rod bore.
– Insert piston pin into piston until it comes flush
with inward edge of piston hub.
– Warm piston to approximately 50-60
°
C (122-
140
°
F) and install it over connecting rod.
NOTE: Make sure thrust washers are present each
side of needles.
– Install the shoulder sleeve tool on the opposite
side of the piston pin.
1. Piston pin
2. Shoulder sleeve
F06D11A
1
F06D12A
1
A01C01A
AUS
1
F00B0OA
2 1