ENGINE
3.19
Lubrication holes
Lobe height
Cam Lobe Height (Intake & Exhaust):
Std: 1.2884-1.2924I (32.726-32.826 mm)
Limit: 1.2766I (32.426 mm)
3. Measure height of each cam lobe using a
micrometer. Compare to specifications.
Journal O.D.
Journal
Camshaft Journal O.D.:
Mag & PTO End: 1.4935-1.4941I
(37.935-37.950 mm)
4. Measure camshaft journal outside diameter
(O.D.)
5. Measure ID of camshaft journal bore.
Camshaft Journal I.D.:
Mag & PTO End: 1.4963-1.4970I
(38.005-38.025 mm)
Calculate oil clearance by subtracting journal OD
from journal bore ID. Compare to specifications.
Camshaft Oil Clearance:
Std: .0022-.0035I (.055-.090 mm)
Limit: .0039I (.10 mm)
NOTE: Replace camshaft if damaged or if any part
is worn past the service limit.
NOTE: Replace cylinder head if camshaft journal
bore is damaged or worn excessively.
CYLINDER HEAD EXPLODED
VIEW,
EH42PL/EH50PL
1. Remove the two 6mm flange bolts (A) from
cylinder head. See next exploded view on next
page.
2. Loosen each of the four cylinder head bolts
evenly 1/8 turn each time in a criss-cross pattern
until loose.
B
3. Remove bolts (B) and tap cylinder head lightly
with a plastic hammer until loose. CAUTION:
Tap only in reinforced areas or on thick parts of
cylinder head casting to avoid damaging the
thread.
4. Remove cylinder head and head gasket.
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