Valve Stem / Valve Guide Specifications - Toro Prior LC1P65FA Service Manual

Valve Stem Inspection
Inspect each valve for face irregularities, bending
or abnormal wear.
Valve Stem Diameter Specification
Standard
0.2157" (5.48 mm)
Intake
0.2141" (5.44 mm)
Exhaust
NOTE: If this measurement is out of specification, complete engine replacement is required.
The only internal parts available for this engine are gaskets and seals.
Valve Guide Inspection
Ream the exhaust valve guide to remove any carbon deposits before
measuring.
Valve Guide ID Specification:
Standard
0.2165" (5.50 mm)
NOTE: If this measurement is out of specification, complete engine replacement is required.
The only internal parts available for this engine are gaskets and seals.
Valve Stem to Guide Clearance
Subtract each valve stem OD from the corresponding guide ID to
obtain the guide-to-stem clearance.
Standard
.00039" - 0.0013"
Intake
(0.01-0.034 mm)
0.0019 - 0.0027"
Exhaust
(0.05-0.070 mm)
NOTE: If this measurement is out of specification, complete engine replacement is required.
The only internal parts available for this engine are gaskets and seals.
Service Limit
0.2093" (5.318 mm)
0.0047" (0.12 mm)
Service limit
0.2193" (5.572 mm)
Service limit
.00393"
(0.10 mm)
0.0047"
(0.12 mm)
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