Section 03 ENGINE
Sub-Section 03 (377, 443 AND 503 ENGINE TYPES)
03-03-8
1. Piston notch
2. Circlip break at 6 o’clock
CAUTION : Circlips must not move freely
in the groove after installation. If so, re-
place them.
NOTE :
Be sure to restore the chamfer
around all cylinder sleeve port openings.
Before inserting piston in cylinder
no. 4
, lubricate
the cylinder with new injection oil or equivalent.
Install proper ring compressor on piston assem-
bly.
NOTE :
The ring compressor will not fit on
over size pistons.
Check flatness of intake sockets
no. 6
. Refer to
ENGINE DIMENSION MEASUREMENT 03-04
and look for
checking surface flatness
.
At cylinder
no. 4
and / or cylinder head
no. 3
in-
stallation, use aligning tool or exhaust manifold it-
self to ensure sealing of intake manifold and
exhaust before tightening cylinder head nuts.
1. Or use exhaust manifold to align cylinders
ENGINE TYPE
RING COMPRESSOR
P/N
377 420 8760 90
503 420 8769 70
1
2
A01C02A
ENGINE TYPE
ALIGNING TOOL
P/N
377, 443 and 503 420 8761 71
A17C01A
420 8761 71
A17C02A
1
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