How to check the valve tip clearances
These are checked between the top of the valve stem and the rocker lever (A), with the engine hot or cold. The correct
clearances are 0,20 mm (0,008 in) for inlet valves and 0,45 mm (0.018 in) for exhaust valves. The valve positions are
shown at (B).The order of the valve positions are shown at the table below.
Remark: Number 1 cylinder is at the front of the engine.
Four cylinder engines
1.
Turn the crankshaft in the normal direction of rotation until the inlet valve (B8) of number 4 cylinder has just
opened and the exhaust valve (B7) of the same cylinder has not closed completely. Check the clearances of the
valves of number 1 cylinder and adjust them, if it is necessary.
2.
Set the valves of number 2 cylinder (B3 and B4) as indicated above for number 4 cylinder. Then check/adjust the
clearances of the valves of number 3 cylinder (B5 and B6).
3.
Set the valves of number 1 cylinder (B1 and B2).Then check/adjust the clearances of the valves of number 4
cylinder (B7 and B8).
4.
Set the valves of number 3 cylinder (B5 and B6).Then check/adjust the clearances of the valves of number 2
cylinder (B3 and B4).
1
2
3
4
No. of
Cylinder and
Valve
1
2
3
4
5
6
7
8
Valve
I= inlet valve
E=Exhaust valve
I
E
E
I
I
E
E
I
4.23
Summary of Contents for 1004-4
Page 3: ...Lovol Phaser Series Lovol 1000 Series...
Page 4: ...EGR engine of Lovol Phaser Series Engine of Lovol 1000 Series...
Page 12: ...Engine Views 2 Introduction 2 02 Location of engine parts 2 03 2 01...
Page 49: ...Fault diagnosis 6 Problems and possible causes 6 02 Code list of possible causes 6 03 6 01...
Page 52: ...Engine preservation 7 Introduction 7 02 Procedure 7 02 7 01...
Page 54: ...Parts and service 8 Introduction 8 02 Service literature 8 02 Training 8 02 8 01...
Page 56: ...Engine data 9 Engine data 9 02 9 01...
Page 63: ...Structure of PB Pump 10 06...
Page 65: ...Structure of RSV Governor 10 08...
Page 75: ...The Use and Maintenance of the Hydraulic Pump 10 08 12 01...