40
Camshaft Lobe Height Specifications
Intake
Engine
Standard
Service Limit
175FDS-1
1.2455 -
1.2501”
(31.636-31.754 mm)
1.2342”
(31.35 mm)
180FDS-1
1.257 -
1.264”
(31.953-32.113 mm)
1.244”
(31.60 mm)
Exhaust
Engine
Standard
Service Limit
175FDS-1
1.2470 -
1.2533”
(31.674 -31.834 mm)
1.2342”
(31.35 mm)
180FDS-1
1.246 -
1.253”
(31.66 -31.82 mm)
1.232”
(31.30 mm)
Camshaft Journal Outside Diameter
Engine
Standard
Service Limit
175FDS-1
180FDS-1
0.6285 -
0.6292”
(15.966-15.984 mm)
0.6267”
(15.92 mm)
Check the camshaft bearing journal for scoring, wear or damage.
NOTE:
Verify that the decompression mechanism moves freely.
.
Crankcase Cover / Camshaft Hole Inside Diameter
Engine
Standard
Service Limit
175FDS-1
180FDS-1
0.6299 -
0.6306”
(16.0-16.018 mm)
0.6318”
(16.05 mm)
