It is important that the clearance of each
valve is checked and adjusted only when the
valve is fully closed, with the rocker arm
resting on the heel of the cam (directly
opposite the peak). This can be ensured by
carrying out the adjustments in the following
sequence, noting that No 1 cylinder is at the
transmission end of the engine. The correct
valve clearances are given in the
Specifications at the start of this Chapter.
The
valve locations can be determined from the
position of the manifolds.
| Valve fully open |
Adjust valves |
| No 3 inlet, No 4 exhaust |
No 1 exhaust |
| No 4 inlet, No 2 exhaust |
No 3 exhaust |
| No 2 inlet, No 1 exhaust |
No 4 exhaust |
| No 1 inlet, No 3 exhaust |
No 2 exhaust |
With the relevant valve fully open, check the
clearances of the two valves specified.
Rotate the crankshaft until the next valve in
the sequence is fully open, and check the
clearances of the next two specified valves.
Repeat the procedure until all eight valve
clearances have been checked
