Volvo D12 Dokumentacja Pobierz pdf (Strona 38)

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

TSI 9.2003 211 007 38(41)

2149-03-05-01

Valve Seat, Replacement (One)

You must read and understand the precautions and

guidelines in Service Information, group 21, "General

Safety Practices" before performing this procedure.

If you are not properly trained and certified in this

procedure, ask your supervisor for training before

you perform it.

T2007047

Measuring wear of the valve seats

The valve seats should be changed when the distance

“A”, measured with a new valve exceeds:

a Intake valve— 1.5 mm (0.06 in)

b Exhaust valve — 1.8 mm (0.07 in)

W2000717

Fig. 42: Checking valve seat

Note: Observe due care so as not to damage the

cylinder head.

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Volvo D12 Dokumentacja Strona 38