Outlet: 0.072 mm
Valve check Maximum admissible clearance
Inlet: 0.062 mm
Valve check standard clearance
Outlet: 0.025 ÷ 0.052 mm
Valve check standard clearance
Inlet: 0.013 ÷ 0.040 mm
Valve check Minimum admissible diameter
Outlet: 4.95 mm
Valve check Minimum admissible diameter
Inlet: 4.96 mm
Valve check Standard diameter:
Inlet: 4.972 ÷ 4.987 mm
Valve check Standard diameter:
Outlet: 4.96 ÷ 4.975 mm
Inspecting the springs and half-cones
- Check that the upper spring caps and the cotter
halves show no signs of abnormal wear.
Refitting the valves
- Lubricate the valve guides with engine oil.
- Place the valve spring supports on the head.
- Using the special punch, fit the four valve seals.
- Fit the valves, the springs and the caps. Using
the appropriate tool with adapter, compress the
springs and insert the cotters in their seats.
N.B.
DO NOT CHANGE THE VALVE FITTING POSITION. FIT THE
VALVE SPRINGS WITH THE REFERENCE COLOUR ON
COTTER SIDE (TURNS WITH GREATER PITCH).
Specific tooling
Carnaby 125 - 200 Engine
ENG - 149
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