New Holland LS140 Workshop Manual page 70

Inspection and Correction
Cylinder Head
With a straightedge and a thickness gauge, check for
warping of the cylinder head lower face.
Check six positions (1 to 6 lines, as shown) for
warping. If found to be warped excessively, correct
with a surface grinder.
Standard Value
0.05 mm or less
(0.002")
Op. 10 101 32
Valve Guide and Valve Stem
1. Check the valve stem for excessive wear or
damage. If found to be excessively worn,
replace.
2. Check the valve stem diameters at positions 1, 2,
and 3 with a micrometer. If the diameter is less
than the allowable limit, replace.
Intake Valve
Standard Diameter
6.955 - 6.97 mm
(0.2738" - 0.2744")
Exhaust Valve
Standard Clearance
6.94 - 6.95 mm
(0.2732" - 0.2736")
SECTION 10 - ENGINE
Allowable Limit
0.12 mm
(0.005")
Allowable Limit
6.89 mm
(0.271")
Allowable Limit
6.84 mm
(0.269")
10-35
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