SECTION 10 -- ENGINE -- CHAPTER 1
9
PISTON DATA (continued)
mm (in)
PISTON DATA (continued)
Farmall 90 -- Farmall 95
Piston ring groove clearance (measured vertically):
Piston ring groove clearance (measured vertically):
-- 1
°
ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.100 to 0.175 (0.0039 to 0.0068)
-- 2
°
ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.060 to 0.110 (0.0023 to 0.0043)
-- 3
°
ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.040 to 0.073 (0.0015 to 0.0028)
Assembly clearance between piston ring ends in cylinder
sleeves:
-- 1
°
ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.30 to 0.40 (0.0118 to 0.0157)
-- 2
°
ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.60 to 0.80 (0.0236 to 0.0314)
-- 3
°
ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.30 to 0.55 (0.0118 to 0.0216)
Spare piston ring oversizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.500 (0.0196)
VALVE TIMING GEAR DATA
mm (in)
Inside diameter of camshaft bearings (fitted and reamed):
Inside diameter of camshaft bearings (fitted and reamed):
-- front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54.083 to 54.147 (2.1292 to 2.1317)
-- intermediate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54.083 to 54.147 (2.1292 to 2.1317)
-- rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54.083 to 54.147 (2.1292 to 2.1317)
Diameter of camshaft journals:
-- front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
53.995 to 54.045 (2.1257 to 2.1277)
-- intermediate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
53.995 to 54.045 (2.1257 to 2.1277)
-- rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
53.995 to 54.045 (2.1257 to 2.1277)
Clearance between camshaft journals and bushings . . . . . . . . . . .
0.038 to 0.152 (0.0014 to 0.0059)
Camshaft end float . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.230
±
0.130 (0.0090
±
0.0051)
Crankshaft to camshaft teeth clearance . . . . . . . . . . . . . . . . . . . . . .
0.076 to 0.280 (0.0029 to 0.0110)
TAPPET DATA
mm (in)
Tappet bore in crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16.000 to 16.030 (0.6299 to 0.6311)
Outside diameter of standard tappet . . . . . . . . . . . . . . . . . . . . . . . . .
15.929 to 15.959 (0.6271 to 0.6283)
Tappet running clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.041 to 0.101 (0.0016 to 0.0039)
ROCKER ARM -- VALVE DATA
mm (in)
Rocker--arm shaft diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18.963 to 18.975 (0.7465 to 0.7470)
Rocker--arm shaft seat diameter . . . . . . . . . . . . . . . . . . . . . . . . . . .
19.000 to 19.026 (0.7480 to 0.7490)
Rocker arm bore to shaft clearance . . . . . . . . . . . . . . . . . . . . . . . . .
0.025 to 0.063 (0.0009 to 0.0024)
Summary of Contents for 90
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