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VALVES AND VALVE SPRINGS
www.PlanDeGraissage.org
REMOVAL POINTS
Valve lifter and valve cotter
1. Remove:
• Valve lifter 1
• Pad 2
NOTE:
Identify each lifter 1 and pad 2 position very
carefully so that they can be reinstalled in their
original place.
2. Check:
• Valve sealing
Leakage at the valve seat → Inspect the
valve face, valve seat and valve seat
width.
Checking steps:
• Pour a clean solvent 1 into the intake and
exhaust ports.
• Check that the valve seals properly.
There should be no leakage at the valve
seat 2.
3. Remove:
• Valve cotter
NOTE:
Attach a valve spring compressor 1 between
the valve spring retainer and the cylinder head
to remove the valve cotters.
Valve spring compressor:
YM-4019/90890-04019
4 - 35
ENG
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