ENGINE
ES50PL Engine Service Data
Camshaft
Cylinder Head
Valve Seat
Valve Guide
Valve
Valve Spring
3.4
Cylinder Head / Valve
Cam lobe height
Camshaft journal OD
Camshaft journal bore ID
Camshaft Oil clearance
Surface warpage limit
Standard height
Contacting width
**Measure valve stem
height
Inner diameter
Protrusion above head
Margin thickness
Stem diameter
Stem oil clearance
Overall length
Valve Lash
Overall length
Limit = -.079" (-2.0 mm)
Squareness
Std
1.667–1.671" (42.35–42.45 mm)
In
Limit
1.655" (42.05 mm)
Std
1.667–1.671" (42.35–42.45 mm)
Ex
Limit
1.655" (42.05 mm)
Mag
.9821–.9828" (24.946–24.963 mm)
PTO
.8652–.8655" (21.976–21.985 mm)
Mag
.9842–.9851" (25.000–25.021 mm)
PTO
.8657–.8661" (21.990–22.000 mm)
Mag
.0014–.0029" (.037–.075 mm)
PTO
.0001–.0009" (.005–.024 mm)
Limit
.004" (.10 mm)
.0020" (.05 mm)
4.975" (126.4 mm)
Std
1.5255" (38.75 mm)
In
Limit
1.5425" (39.18 mm)
Std
1.5255" (38.75 mm)
Ex
Limit
1.5377" (39.06 mm)
.2362- .2367" (6.0- 6.012 mm)
.535- .551" (13.6- 14.0 mm)
Std
.039" (1.0 mm)
In
Limit
.031" (.8 mm)
Std
.039" (1.0 mm)
Ex
Limit
.031" (.8 mm)
In
.2343–.2348" (5.950–5.965 mm)
Ex
.2341–.2346" (5.945–5.960 mm)
In
.0014–.0024" (.035–.062 mm)
Std
Ex
.0016–.0026" (.040–.067 mm)
Limit
.0059" (.15 mm)
In
4.031" (102.4 mm)
Ex
4.059" (103.1 mm)
In
.006" (.15 mm) +/- .0019" (.05 mm)
Ex
.010" (.27 mm) +/- .0019" (.05 mm)
Inner
1.575" (40.0 mm)
Outer
1.650" (41.9 mm)
Inner
.067-" (1.7 mm)
Outer
.071" (1.8 mm)
ES50PL
RepairPro Service Manual