Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
10
No. Description
N．m
27 Belt pulley bolt 210
28 Fan pulley 12.5
29 Crankshaft bearing cap bolt 170
30 Connecting rod bearing cap bolt 25 for first step
85 for second step
31 Camshaft timing gear 110
32 Fuel injection pump nut 30
33 Idler gear bolt 20
34 Engine oil pipe perforated bolt 20
35 Crankshaft belt pulley bolt 210
36 Fan silicone oil clutch 12.5
37 Connecting rod bearing cap 20 for first step
85 for second step
38 Piston cooling oil pipe bolt M8×1.25 25
M6×1.00 7.5
39 Oil pressure regulation valve M6×1.5 30
40 Socket nut of engine oil pump 30
41 Engine oil pump assembly bolt 25
42 Oil sump bolt 23.5
43 Cylinder head bolt 65 for first step
85 for second step
105±5 for third step
44 Rockshaft support bolt 55
45 Tightening bolt of water outlet pipe 19
46 Protrusion size of water pump impeller 24.6mm
47 Fan center distance
79.2～79.8 m
48 Open temperature of thermostat valve 82 ℃
49 Full open temperature of thermostat valve 95℃
50 Open pressure of vacuum valve at center of radiator
cap valve seat
88．2～117．6 kPa
51 Water pump fixing bolt 25 N.m
52 Alternator fixing bolt 40 N.m
53 Alternator adjustment plate fixing bolt 25 N.m
54 Lock nut, A/C compressor idler gear 27 N.m
55 Nut of engine oil cooler water pipe 25
56 Oil drainage plug 80
57 Fixing bolt of oil pump assembly 20
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