Filter
Top Products
4 - 22
ENG
CAMSHAFT, ROCKER ARMS AND VALVES
3.Check:
●
Valve face
Pitting/wear → Grind the face.
●
Valve stem end
Mushroom shape or diameter larger than the
body of the stem → Replace.
4.Measure:
●
Margin thickness a
Out of specification → Replace.
Margin thickness:
Intake:
1.0 ~ 1.4 mm (0.0394 ~ 0.0551 in)
Exhaust:
0.8 ~ 1.2 mm (0.0315 ~ 0.0472 in)
5.Measure:
●
Runout (valve stem)
Out of specification → Replace.
N
OTE:
●
When installing a new valve, always replace
the guide.
●
When a valve is removed or replaced,
always replace the oil seal.
6.Eliminate:
●
Carbon deposits
(from the valve face and valve seat)
7.Check:
●
Valve seat
Pitting/wear → Reface the valve seat.
8.Measure:
●
Valve seat width a
Out of specification → Reface the valve seat.
Runout limit:
0.01 mm (0.0004 in)
Valve seat width:
Intake:
1.2 ~ 1.4 mm (0.0472 ~ 0.0551 in)
<Limit>: 1.6 mm (0.0630 in)
Exhaust:
1.2 ~ 1.4 mm (0.0472 ~ 0.0551 in)
<Limit>: 1.6 mm (0.0630 in)