Specifications

Volvo Trucks North America, Inc. Date Group No. Page
TSI 9.2003 211 007 40(41)
2149-05-05-01
Valve Seat, Grind (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.
1
Prior to grinding, check the valve guides and replace
them if the wear limits have been exceeded.
2
Grind the valve seat just enough to give it its correct shape
and to ensure a good contact surface for the valve rotator.
3
T2007045
Fig. 43: Valve seat angles, Intake Valve
T2007046
Fig. 44: Valve seat angles, Exhaust Valve
Dimension B shows the amount of wear or grinding
allowed on the valve seat. The distances are measured
with a new valve and the wear tolerances are:
a Intake valve— 1.5 mm (0.06 in)
b Exhaust valve — 1.8 mm (0.07 in)