BOMBARDIER 1980 Shop Manual page 130

SECTION 03
SUB-SECTION 02, (ENGINES)
TOP END
CLEANING
Discard all gaskets.
Clean all metal components in a non-ferrous metal
cleaner.
Scrape off carbon formation from cylinder exhaust port.
cylinder head and piston dome using a wooden spatula.
O
NOTE: The letter .. AUS" (over an arrow on the
piston dome) must be visible after cleaning.
Clean the piston ring grooves with a groove cleaner tool,
or with a piece of broken ring.
DISASSEMBLY AND ASSEMBLY
CD
(VAt cylinder andlor cylinder head installation. use
PIN 420876171 aligning tool (or exhaust manifold)
to ensure sealing of intake manifold and exhaust (See
Tools Section). before tightening cylinder head nuts.
m
(503 ENGINE TYPE). PAGE 8
Exhaust manifold
Cross torque cylinder head nuts to 20 Nom (15 ft-Ibs);
torque each cylinder head individually.
@0@@
Position nuts and distance nuts as illustrated.
Torque nuts to 20 Nom (15 ft-Ibs).
@Install a gasket on each side of the air deflector.
@@@Torque to 20 Nom (15 ft-Ibs).