79
Technical Data
Important bolts and nuts D34 MS
Thread Torque
Description Diam.xPitch Nm kpm lbf.ft Notes
(M-Thread)
Fuel rack control lever 8 x 1,25 25 2,5 18 (b)
Injection pump drive gear 30 x 1,5 294 30 216
Injection pump laminate plate 12 x 1,75 83-93 8,5-9,5 61-69
Injection pump coupling shaft 14 x 1,5 83-93 8,5-9,5 61-69
Gland (injection nozzle holder) 12 x 1,25 98 10 72
Injection nozzle set screw 16 x 1 39-49 4-5 29-36
Injection nozzle tip retaining nuts 19 x 1 59-78 6-8 43-58
Exhaust manifolds 10 x 1,5 59-69 6-7 43-51
Turbocharger compressor wheel (nut) 11 x 1,0 – – – TD10,13(g)(h)(i)
Turbocharger V-clamp – 7,8-9,8 0,8-1,0 5,8-7,2 TD10,13 (h)
(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) Tighten bolts according to the following sequence:
1. Tighten the cap bolts to specified torque
2. Tighten side bolts on the right side of the engine
3. Tighten side bolts on the left side of the engine
(e) 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.
(f) Tighten connecting rod caps according to the angle method, tighten to 245 Nm [25 kpm; 181 lbf.ft], then tighten 60° more.
(g) Left-handed thread.
(h) Apply Moly Disulfide to thread.
(i) Tighten the lock nut to 9,8 Nm [1 kpm)[7,2 lbf.ft] then loosen it completely. Retighten to 9,8 Nm [1 kpm)[7,2 lbf.ft], then tighten
80±3° more.
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