Check Valve Clearance - Vetus M4.55 Operation Manual

4 Maintenance
V : i 0.25 mm (0.010")
alVe ClearanCe nlet
e 0.25 mm (0.010")
xhauSt
12
VD01068
32 Adjusting valve clearance
• Check valve clearance at cylinder 1 and
adjust if necessary.
• Rotate the crankshaft 180° clockwise
and check valve clearance at cylinder 3.
• Again rotate the crankshaft 180° and
check valve clearance at cylinder 4.
• Finally again rotate the crankshaft 180°
and check valve clearance at cylinder 2.
1.2 x 6.5
VD00637
34 Cylinder numbering
Cylinders are numbered consecutively,
beginning at the front end.
Checking valve clearance
Every 500 operating hours.
47