Yanmar 1GM User Manual page 104

98
Table 1 ENGINE SPECIFICATIONS (1GM, 1GM10) (continued)
CHAPTER FIVE
Camshaft
Valve lobe lift
Fuel pump lobe lift
Journal diameter
Runout
Timing gear backlash
Maximum allowable
Push rod runout-max.
Valve lifter
Type
Outside diameter
Outside diameter-min.
Clearance in block
Max. clearance
Valve face angle
Valve seat angle
Valve head margin
Seat width (int. and exh.)
Valve depth-max.
Valve stem clearance (int. and exh.)
Max. stem clearance
Valve stem diameter
Valve stem wear limit
Valve stem runout-max.
Valve guide diameter
Valve guide wear limit
Valve guide protrusion
Valve spring
Standard free length
Min. free length
Installed height
Pressure at installed height
Rocker arm shaft clearance
Rocker arm shaft clearance-max.
Rocker arm bore wear limit
Rocker arm shaft wear limit
Oil pump
Inner rotor tip-to-outer rotor tip
Max.
Outer rotor-to-pump body
Max.
Rotor side clearance
Max.
Shaft clearance
Max.
29.000 mm (1.1417 In.)
22.000 mm (0.8661 in.)
20.000 mm (0.7874 In.)
0.02 mm max. (0.0008 in. max.)
0.05-0.13 mm (0.002-0.005 in.)
0.3 mm (0.012 In.)
0.03 mm (0.0012 In.)
Mechanical
10.000 mm (0.3937 ln.)
9.95 mm (0.3917 in.)
0.025-0.060 mm (0.0010-0.0024 In.)
0.10 mm (0.004 in.)
45°
45°
0.75-1.15 mm (0.030-0.045 in.)
1.n
mm (0.070 In.)
1.25 mm (0.049 in.)
0.045-0.070 mm (0.0018-0.0028 in.)
0.15 mm (0.006 In.)
7.000 mm (0.2756 mm)
6.900 mm (0.2717 in.)
0.03 mm (0.0012 ln.)
7.000 mm (0.2756 mm)
7.080 mm (0.2878 In.)
7.0 mm (0.276 in.)
38.5 mm (1.52 In.)
37 mm (1.46 in.)
29.2 mm (1.15 in.)
16.16 kg at 29.2 mm
(35.63 lb. at 1.15 in.)
0.016-0.052 mm (0.0006-0.0020 in.)
0.15 mm (0.006 in.)
12.10 mm (0.476 in.)
11.90 mm (0.468 ln.)
0.050-0.105 mm (0.0020-0.0041 in.)
0.15 mm (0.006 In.)
0.050-0.105 mm (0.0020-0.0041 in.)
0.15 mm (0.006 In.)
0.030-0.080 mm
0.13 mm (0.005 in.)
0.015-0.050 mm (0.0006-0.0020 In.)
0.20 mm (0.0079 In.)
Table 2 TIGHTENING TORQUES
Fastener
Nem
ft.-lb. In.-lb.
Camshaft gear 70-80 52-59
Connecting rod bolts 25 18
Crankshaft nut 80-100 59-74
Cylinder head nut 75 55
Exhaust elbow 45 33
Flywheel 65-70 48-52
Main bearing housing 25 18
Oil pump 9 80
Rocker shaft support 37 27
Timing gearcase
9 80