Volvo Penta D25A MS Operator's Manual page 78

Technical Data
Sea water pump cam (screw)
Sea water pump casing
Sea water pump cover
Sea water pump drive gear (nut)
Injection pump
Injection pump bracket
Injection pump drive case
Injection pump gear (nuts)
Injection pump laminate plate
Injection pump flywheel (nuts)
Injection pump coupling shaft
Injection pump plunger assembly
Injection pump delivery valve holder
Injection nozzle gland (nut)
Injection nozzle chip (nut)
Nozzle holder cap nuts
Injection nozzle set screw
Injection nozzle inlet connector
Injection pipes
Fuel filter air vent plug
Fuel rack control lever
Governor drivecase
Starter
Turbocharger compressor wheel (nut)
Turbocharger V-clamp
Turbocharger compressor wheel (nut)
Turbocharger turbine housing
Turbocharger V-clamp
(a) Wet , apply lubrication oil to the threads of the nut and bolt.
(b) 2-step tightening method,
(c) Tighten cylinder head bolts according to the angle method, tighten to 294 Nm [30 kpm; 217 lbf.ft], then tighten 60° more.
(d) Extremely important to use torque wrench in tightening the piston cooling nozzles. Failure to do so may result in excessive
tightening torque, which may cause valve malfunctions that could lead to seizing of pistons due to insufficient lubrication.
(e) Tighten connecting rod caps according to the angle method, tighten to 245 Nm [25 kpm; 181 lbf.ft], then tighten 60° more.
(f) Left-handed thread.
(g) Apply Moly Disulfide to thread.
(h) Tighten the lock nut to 49 Nm [5 kpm; 36 lbf.ft] firs, then loosen it completely. Retighten to 14,7 Nm [1,5 kpm; 0,8 lbf.ft],
then tighten 80±3° more.
(i) Tighten the lock nut to 69 Nm [7 kpm; 51 lbf.ft] then loosen it completely. Apply Loctite No. 962T to the
threads. Retighten to 9,8 Nm [1 kpm; 7,2 lbf.ft], then tighten 90±3° more.
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78
10 x 1,25 15,7-21,6
8 x 1,25 7,4-9,8
8 x 1,25 7,4-9,8
24 x 2,0 191-201
12 x 1,25 108
12 x 1,25 108
12 x 1,25 108
30 x 1,5 392
12 x 1,25 103-113
24 x 1,5 392
14 x 1,5 167-177
12 x 1,25 78-83
30 x 1,5 235-255
14 x 1,5 98
28 x 1,5 177-196
14 x 1,5 69-78
10 x 1,5 34-44
16 x 1,5 64-74
18 x 1,5 49-69
– 7,8-9,8
8 x 1,25 25
12 x 1,25 108
12 x 1,25 59
11 x 1,0 –
– 7,8-9,8
1/2 x 20 –
10 x 1,5 25-28
– 9,8-10,8
1,6-2,2 11,6-15,9
0,75-1,0 5,42-7,23
0,75-1,0 5,42-7,23
19,5-20,5 141-148
11 80
11 80
11 80
40 289
10,5-11,5 76-83
40 289
17-18 123-130
8-8,5 58-61
24-26 174-188
10 72
18-20 130-145
7-8 51-58
3,5-4,5 25-33
6,5-7,5 47-54
5-7 36-51
0,8-1,0 5,8-7,2
2,5 18
11 80
6 43
– –
0,8-1,0 5,8-7,2
– –
2,6-2,9 19-21
1,0-1,1 7,2-8,0
Tighten the slit part.
(b)
FD13(f)(g)(h)
FD13 (g)
FD15UNF(f)(i)
FD15 (g)
FD15 (g)