McGRAW-EDISON ONAN KOMATSU 0671TA DIESEL GENERATOR ENGINE VALVE LASH CLEARANCE ADJUSTING
ADJUSTING VALVE CLEARANCE METHOD FOR ADJUSTING VALVE CLEARANCE
1.
Remove cylinder head cover.
2.
Rotate the crankshaft in the normal direction to align pointer (3) with the 1.6 TOP mark on vibra-tion damper (2). When rotating, check the move-ment of the intake valve of No. 6 cylinder. Set with No. 1 cylinder at compression top dead center. When No. 1 cylinder is at compression top dead center, the intake valve of No. 6 cylinder can move (is open).
* 3.
When No. 1 cylinder is at compressien top dead center, adjust the valves marked•·
4.
Then rotate the crankshaft one turn in the normal direction, and adjust the valves marked o.
* Adjust the valves marked •· Cylinder No. Intake valve Exhaust valve
* To
adjust, loosen locknut (8) of adjustment screw (7). Then insert feeler gauge A between valve stem (6) and rocker arm (5), and turn adjustment screw until clearance is a sliding fit. a: Valve clearance Intake valve lash clearance 0.25MM or .010" Exhaust valve lash clearance 0.45MM or .017"
5.
a
1
•
• • 2
0
6
Tighten locknut to hold adjustment screw in position. Locknut torque value: 47 Ft Lbs or 6.5 kgfm
* "After adjusting No. 1 cylinder at compression top dead center, it is also possible to turn the crank° shaft 120 each time and adjust the clearances of the intake and exhaust valves of each cylinder according to the firing order. • Firing order: 1 - 5 - 3 - 6 - 2 - 4
* After tightening the locknut, check the clearance again.
McGRAW-EDISON ONAN Komatsu 0671TA Diesel Generator Engine Parts Contact Phone: 269 673 1638 Email: engineparts2@gmail.com www.Diesel-Generator-Engine-Parts.com
4
3
•
0 0
•
6
5
•
0
0 0
8