- 4 -
ENGINE
- 141 -
• al e stem runout
Out of specification
Replace.
Runout limit 0.01 mm
NOTE
• hen installing a ne al e al a s replace
the gui e
• f the al e is re o e or replace al a s
replace the oil seal
• The al e seat surface wi th
Out of specification
Reface the al e seat.
epairing li it alue
2.0mm
a. Install the al e into the cylin er hea .
. Press the al e through the al e gui e an
onto the al e seat to make a clear pattern.
c. Measure the al e seat wi th. here the
al e seat an al e face ma e contact
lueing will ha e een remo e .
• al e spring free length
• al e spring s uareness
Out of specification
Replace.
al e spring free length
nta e
haust
al e spring s uareness
nta e
haust
• compresse spring force a
Out of specification
Replace.
Installe length
o presse spring force
nta e
at
haust
at
. Remo e
• al e gui e
