Volvo D12 Dokumentacja Pobierz pdf (Strona 16)

Volvo Trucks North America, Inc. Date Group No. Page

TSI 8.2003 215 001 16(21)

T2007003

Fig. 18: Valve cover tightening sequence

Install the valve cover and torque-tighten the bolts to

specifications using the proper sequence (see Fig. 18:

Valve cover tightening sequence, page 16).

Note: Tighten the valve cover nuts according to the

proper sequence and torque. This is to prevent the valve

cover from cracking and also to keep the studs in the

cylinder head from loosening. If any of the valve cover

stud bolts loosened from the cylinder head when the nuts

were removed, the cable harness for the unit injectors

should be checked. There is a risk that the cable holder

on the stud bolt may have followed with the rotation of the

bolt and possibly damaged the cable harness.

Engine Serial Number

Torque

Below 25748 20 ± 2 Nm (15 ± 1 ft-lb)

Above 25748 30 ± 3 Nm (22 ± 2 ft-lb)

Install the intake piping.

Reassemble depending on the model.

Connect negative battery cable.

WARNING

Always wear safety glasses when working around

batteries. Failure to do so could result in serious

personal injury.

Steam clean the engine, around the valve cover, timing

cover, and transmission bellhousing.

Check for any active fault codes and clear any inactive

fault codes.

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Volvo D12 Dokumentacja Strona 16