Ski-Doo Ski Doo MX Z 2005 [1090/1429] Valve springs

Ski-Doo Ski Doo MX Z 2005 [1090/1429] Valve springs
Section 04 ENGINE (4-TEC)
Subsection 05 (CYLINDER AND CYLINDER HEAD)
CAMSHAFT LOBE - EXHAUST VALVE
MINIMUM (NEW) 31.435 mm (1.237 in)
MAXIMUM (NEW)
31.635 mm (1.245 in)
SERVICE LIMIT 31.400 mm (1.236 in)
CAMSHAFTLOBE-INTAKEVALVE
MINIMUM (NEW)
31.654 mm (1.246 in)
MAXIMUM (NEW) 31.854 mm (1.254 in)
SERVICE LIMIT 31.600 mm (1.244 in)
CAMSHAFT BEARING JOURNAL - BIG END
MINIMUM (NEW) 39.927 mm (1.5719 in)
MAXIMUM (NEW)
39.935 mm (1.5722 in)
SERVICE LIMIT 39.920 mm (1.5716 in)
CAMSHAFT BEARING JOURNAL - SMALL END
MINIMUM (NEW)
24.967 mm (.9829 in)
MAXIMUM (NEW) 24.980 mm (.9835 in)
SERVICE LIMIT 24.960 mm (.9827 in)
CAMSHAFT BORE - BIG END MEASURED
IN DIAMETER
MINIMUM (NEW) 39.984 mm (1.5742 in)
MAXIMUM (NEW) 40.000 mm (1.5748 in)
SERVICE LIMIT
40.020 mm (1.5756 in)
CAMSHAFT BORE - SMALL END MEASURED
IN DIAMETER
MINIMUM (NEW) 24.987 mm (.9837 in)
MAXIMUM (NEW)
25.000 mm (.9842 in)
SERVICE LIMIT 25.020 mm (.9850 in)
Replace parts that are not within specifications.
Installation
For installation, reverse the removal procedure.
Pay attention to the following details.
CAUTION: The camshafts are not identical in
design. Do not invert the camshafts during as-
sembly. Any mix-up of the components will
lead to engine damage.
Install camshaft then place the camshaft lock in
the slot.
1
R1004motr95A
1. Camshaft lock
For other parts, refer to proper installation proce-
dure.
VALVE SPRINGS
NOTE: Theengineisequippedwithtwodifferent
valve springs no. 16 (inner) and no. 17 (outer) for
every valve.
Removal
Remove:
rocker arms (refer to ROCKER ARMS)
cylinder head (refer to CYLINDER HEAD).
Compress valve springs no. 16 and no. 17,use
valve spring compressor clamp (P/N 529 035 764)
and valve spring compressor cup (P/N 529 035
724).
WARNING
Always wear safety glasses when disassem-
bling valve springs. Be careful when unlock-
ing valves. Components could be expelled
under pressure from preloaded spring.
mmr2005-025 223

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