Check values for valves
Number | Designation | Engine 457.9 | ||
BE05.30-N-1003-01Q | Valve setback with respect to cylinder head separating surface | When new | mm | 0.7...1.1 |
Permissible value | mm | 1.6 | ||
001 589 53 21 00
541 589 00 40 00
Dial gauge holder
Dial indicator
W05.30-1085-06
1 Attach dial gage (5) to dial gage holder (4).
2 Position dial gage (5) with a preload onto plane face of cylinder head (1).
In the case of a cylinder head (1) with inductive hardenings the
dial indicator holder (4) must stand with dial indicator (5) on even surfaces between inductive hardenings.
3 Set scale of dial indicator (5) to "0".
4 Move dial indicator (5) together with dial indicator holder (4) sufficiently so that the tracer pin is positioned on the valve disk of an inlet valve (2) or exhaust valve (3).
Measure valve setbacks (B) at both inlet valves (2) and at exhaust valves (3). Set scale of dial indicator (5) to "0" before every measurement.
5 Read off value on dial indicator (5) scale and note.
The valve setback (B) must lie within the permissible tolerance range for the valve pair of intake valve (2) or exhaust valve (3).