Volvo Penta TD420VE Workshop Manual page 60

Technical Data: TD/TAD520, TAD530/531/532
Tightening torques
Cylinder head
Screws to cylinder head are reusable only five times.
Step 1: ............................................................... 50
Step 2: ............................................................... 130
Step 3: ............................................................... 90° angle tightening
Group 22 Oil system
Oil cooler, screws ................................................. 21
Oil cooler, hollow screw
Step 1: ............................................................... 80
Step 2: ............................................................... 160
Oil cooler, screw plug ........................................... 80
Front/oil pump housing ......................................... 21
Oil suction pipe ..................................................... 21
Oil sump ............................................................... 21
Oil pressure pipe turbo ......................................... 29
Oil pressure pipe engine block ............................. 39
Screws, oil return pipe turbo
A) with tube fitting .............................................. 40
B) with flange fitting ........................................... 21
Screws, oil return pipe engine block ..................... 21
Oil pressure switch ............................................... 18
Group 23 Fuel system
Screw, governor, idler gear:
Step 1: ............................................................... 30
Step 2: ............................................................... 90° angle tightening
Screw, control rod hose ........................................ 10
Screw, governor ................................................... 17
Flange screws, Injection pump
Step 1: Torque ................................................... 5
Step 2: Loosen screws for injection pump flange 60° counterclockwise
Step 3: Turn injection pump to stop ................... Counterclockwise
Step 4: ............................................................... 60° angle tightening
Step 5: ............................................................... 7
Step 6: ............................................................... 10
Step 7: ............................................................... 30
Flange screw, injector ........................................... 16
Injector cap nut ..................................................... 40 – 50
Delivery pipe
Use a new delivery pipe after every disassembly
Step 1: ............................................................... 5
Step 2: ............................................................... 25
Screw, stop magnet .............................................. 21
Overflow valve ...................................................... 30
Group 25 Inlet and exhaust system
Exhaust manifold nuts .......................................... 25
M8 Nuts, turbo to exhaust manifold ...................... 21
M10 Nuts, turbo to exhaust manifold .................... 40.5
Screws, Inlet manifold .......................................... 11
Group 26 Cooling system
Thermostat housing .............................................. 30
Water temp sensor ............................................... 21
Water pump .......................................................... 21
NOTE! See also "Tightening diagrams".
58
Nm (lbf.ft)
(37 lbf.ft)
(96 lbf.ft)
±2 ±1.5
(15.5
(59 lbf.ft)
(118 lbf.ft)
(59 lbf.ft)
±2 ±1.5
(15.5
±2 ±1.5
(15.5
±2 (15.5 ±1.5
±3 (21.4 ±2.2
±4 ±3
(29 lbf.ft)
±2 ±1.5
(29.5
±2 (15.5 ±1.5
±2 (15.5 ±1.5
±2 ±1.5
(13 lbf.ft)
(22.1 lbf.ft)
±2 ±5
(7 lbf.ft)
±1.5 ±1
(12.5 lbf.ft)
(3.7 lbf.ft)
(5 lbf.ft)
(7.4 lbf.ft)
(22 lbf.ft)
+5 +4
(12 lbf.ft)
(30 – 37 lbf.ft)
(3.7 lbf.ft)
+3.5 ±2.6
(18.4
(15.5 lbf.ft)
(22 lbf.ft)
±2.5 ±1.8
(18.5
±2 ±1.5
(15.5
±4 ±3
(30 lbf.ft)
±1 ±0.7
(8 lbf.ft)
(22.1 lbf.ft)
±2 ±1.5
(15.5
±2 ±1.5
(15.5
lbf.ft)
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Group 20