Isuzu A-4BG1 Workshop Manual page 176

I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I II II I I I I I II II II II II I I I I I I I I I
12-8
TROUBLESHOOTING
UNSTABLE LOW IDLING
Checkpoint Trouble Cause
Remedy
Continued from the previous page
OK
f
Valve clearance
NG Valve clearance improperly
NG
L
adjusted
Adjust the valve clearance
1
1
.
OK
I
Compression pressure
.
.
Blown out cylinder head gasket
,
{
NG
Worn cylinder liner
1 Piston ring sticking or broken
NG
Replace the related parts
4 k
\
Improper seating between the
! ' <
valve and the valve seat
' <
i
A