Technical data

Section 04 ENGINE
Sub-Section 02 (TOP END)
040-02-8
NOTE : Squish gap measurement is dis-
cussedfurther in this sub-section.
ASSEMBLY
Assembly is essentially the reverse of disassem-
bly procedures. However pay particular attention
to the following.
3, Piston
At assembly, place the pistons over the connect-
ing rods 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 engine, the exhaust
ports are located on the same side as the
intake.
787 ENGINE SHOWN
1. “AUS”
Carefully cover crankcase opening as for disas-
sembly.
4,6, Piston Pin and Roller Bearing
717 and 787 Engines
To install roller bearing and piston pin use piston
pin puller (P / N 290 877 092), proceed as follows :
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.
Use any suitable 23 mm (.905 in) diameter
pusher as a tool. Make sure thrust washers are
present each side of needles.
1. Pusher
Insert piston pin into piston until it comes flush
with inward edge of piston hub.
GASKET
THICKNESS
IDENTIFICATION
HOLES
0.3 mm
(.012 in)
3
0.4 mm
(.016 in)
4
0.5 mm
(.020 in)
5
0.6 mm
(.024 in)
6
0.8 mm
(.031 in)
8
A01C01A
AUS
1
F01D7EA
1
F01D30A
1
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