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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