Page 411 - Foton Workshop Manual - Sauvana

ENGINE MECHANICAL - VALVE 12B-121

(f). Measure the clearance of the eight valves
including the No.1、2、5 and 7 with the
feeler gauge, and record the measuring
results.
(g). Rotate the crankshaft with 360 ° (the
piston is at the top dead center of the No.4
cylinder compression stroke at this time)
Measure the clearance of the other eight
valves with the feeler gauge, and record
the measuring results.
Clearance of the intake valve： 12B
0.22~0.28mm
Clearance of the exhaust valve：
0.27~0.33mm
NOTICE:
If the measured clearance of the valve is not in
conformity with the standard value, adjust the
valve clearance (replace the valve tappet).

2. Check the clearance of the valve(removing
the timing mechanism)
(a). Stick the hexagon section of the intake
camshaft with a wrench to rotate camshaft.
(b). When a certain protruding point of the
camshaft is at the position shown in the
fig., measure the valve clearance of the
two valves corresponding to the protruding
point of the camshaft with the feeler gauge
and record the measuring results.
(c). Measure the valve clearance of all the
other valves one by one with the same
method and record the results.
Clearance of the intake valve：
0.22~0.28mm
Clearance of the exhaust valve：
0.27~0.33mm
NOTICE:
If the measured clearance of the valve is not in
conformity with the standard value, adjust the
valve clearance (replace the valve tappet).

Page 411