ONAN 75 DVB 75.0DVB 75KW Diesel VALVE LASH CLEARANCE ADJUSTMENT
Generator Engine
Valve Lash Clearance Specifications: Warm and cold mm (in) INTAKE VALVES
0.35MM ( 0.014 Inch )
EXHAUST VALVES
0.50MM ( 0.020 Inch )
1)
2)
*
Rotate the crankshaft in the normal direction to align pointer (2) on the gear case cover with the 1.6 TOP mark on crankshaft pulley (1). When the begin to open, No.1 cylinder is in compression T.D.C. When No.1 cylinder is at compression T.D.C., adjust the valve marked • · Then rotate the crankshaft 360 ° in the normal direction, and adjust the valves marked o.
Rocker arm adjustment screw
Rocker arm shaft
Valve arrangement chart Cylinder No. Intake valve Exhaust valve
�Locknut
3)
* *
2
1
3
• • •
0
0
5
4
•
•
0
0
6
•
0 0
4.5 ± 0.5 kgm 33 ± 4 f t · lb 44 ± 5 Nm
After adjusting No. 1 cylinder at compression top dead center, it is also possible to turn the crankshaft 120 ° each time and adjust the yalve clearance of each cylinder according to the firing order. Firing order: 1 - 5 - 3 - 6 - 2 - 4 After tightening the locknut, check the clearance again.
ONAN 75 DVB 75.0DVB 75KW Diesel Generator Engine Parts Contact Phone: 269 673 1638 Email: engineparts2@gmail.com www.Diesel-Generator-Engine-Parts.com
Valve clearance
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