2. Maintenance Information
2-7
Valve Clearance Inspection And
Adjustment
Check & adjust valve clearance with feeler
gauge.
Valve clearance (IN/EX): 0.12 ± 0.02 mm
Loosen fixing nut and turn the adjustment nut for
adjustment.
Caution
Idle Speed / Exhaust Gas
Adjustment
Connect the DATASCAN connector with the body
harness connector.
Turn on main switch and start the motor. Then
the DATASCAN will open to initial window
automatically.
Adjust the Data Scan to data monitor menu.
Caution
If idle speed and CO have to be adjusted, then
turn the DATASCAN to idle speed & CO
adjustment function window.
Press ”ENTER” key to enter adjustment function.
The cursor “
▲
,
▼
” is for a digit and the “
◄
,
►
” is
for denary scale.
Emission standard:
Engine RPM
1600 ± 100rpm
HC
900 ppm
↓
CO
1.5 ± 0.5%
Please refer to chapter 4, fuel system, for the
detailed usage of DATASCAN.
It has to make sure that valve rock-arm is be
adjusted to standard level when adjusting it,
and re-check the valve clearance after
tightened the fixing nut.
•
Inspection & adjustment for idle speed
have to be performed after all other parts
in engine that needed adjustment have
been adjusted.
•
Idle speed check and adjustment have to
be done after engine is being warn up to
working temperature 115~130
℃
. (around
10 minutes)
•
This inspection & adjustment have to be
done with DATASCAN. Never adjust the
adjustment screw on the throttle body
arbitrarily to prevent from effect fuel
injection precision.
