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ENGINE
3.3
ENGINE SERVICE DATA
Cylinder Head / Valve EH42PLE EH50PLE
Rocker Arm
Rocker arm ID .8669-.8678″ (22.020-22.041 mm) .8669-.8678″ (22.020-22.041 mm)
Rocker shaft OD .8656-.8661″ (21.987-22.0 mm) .8656-.8661″ (21.987-22.0 mm)
Rocker shaft Oil Clearance
Std .0008-.0021″ (.020-.054 mm) .0008-.0021″ (.020-.054 mm)
Limit .0039″ (.10 mm) .0039″ (.10 mm)
Camshaft Cam lobe height In
Std 1.2884-1.2924″ (32.726-32.826 mm) 1.2884-1.2924″ (32.726-32.826 mm)
g
Limit 1.2766″ (32.426 mm) 1.2766″ (32.426 mm)
Ex
Std 1.2884-1.2924″ (32.726-32.826 mm) 1.2884-1.2924″ (32.726-32.826 mm)
Limit 1.2766″ (32.426 mm) 1.2766″ (32.426 mm)
Camshaft journal OD
Mag 1.4935-1.4941″ (37.935-37.950 mm) 1.4935-1.4941″ (37.935-37.950 mm)
j
PTO 1.4935-1.4941″ (37.935-37.950 mm) 1.4935-1.4941″ (37.935-37.950 mm)
Camshaft journal bore ID
Mag 1.4963-1.4970″ (38.005-38.025 mm) 1.4963-1.4970″ (38.005-38.025 mm)
j
PTO 1.4963-1.4970″ (38.005-38.025 mm) 1.4963-1.4970″ (38.005-38.025 mm)
Camshaft Oil clearance
Std .0022-.0035″ (.055-.090 mm) .0022-.0035″ (.055-.090 mm)
Limit .0039″ (.10 mm) .0039″ (.10 mm)
Cylinder Head
Surface warpage limit .0020″ (.05 mm) .0020″ (.05 mm)
y
Standard height 3.870″ (98.3 mm) 3.870″ (98.3 mm)
Valve Seat Contacting width In
Std .028″ (.7 mm) .028″ (.7 mm)
g
Limit .055″ (1.4 mm) .055″ (1.4 mm)
Ex
Std .039″ (1.0 mm) .039″ (1.0 mm)
Limit .071″ (1.8 mm) .071″ (1.8 mm)
Valve Guide
Inner diameter .2362-.2367″ (6.0-6.012 mm) .2362-.2367″ (6.0-6.012 mm)
Protrusion above head .689-.709″ (17.5-18.0 mm) .689-.709″ (17.5-18.0 mm)
Valve Margin thickness In
Std .039″ (1.0 mm) .039″ (1.0 mm)
g
Limit .031″ (.8 mm) .031″ (.8 mm)
Ex
Std .047″ (1.2 mm) .047″ (1.2 mm)
Limit .031″ (.8 mm) .031″ (.8 mm)
Valve
Stem diameter In .2343-.2348″ (5.950-5.965 mm) .2343-.2348″ (5.950-5.965 mm)
Ex .2341-.2346″ (5.945-5.960 mm) .2341-.2346″ (5.945-5.960 mm)
Stem oil clearance Std
In .0014-.0024″ (.035-.062 mm) .0014-.0024″ (.035-.062 mm)
Ex .0016-.0026″ (.040-.067 mm) .0016-.0026″ (.040-.067 mm)
Limit .0059″ (.15 mm) .0059″ (.15 mm)
Overall length
In 3.976″ (101.0 mm) 3.976″ (101.0 mm)
g
Ex 3.984″ (101.2 mm) 3.984″ (101.2 mm)
Valve Spring Overall length
Std 1.654″ (42.0 mm) 1.654″ (42.0 mm)
p
g
g
Limit 1.575″ (40.0 mm) 1.575″ (40.0 mm)
Squareness .075″ (1.9 mm) .075″ (1.9 mm)