CF MOTO CF1000ATR 2018, Руководство по обслуживанию, Страница: 105 / 365

CFMOTO
05-30
1 Pressure gauge 2 Air hose
053001
Leakdown Test
Connect to suitable air power, set the
pressure gauge to zero.
Note: All the air pressure gauge has
detailed instructions and pressure range.
Set the pressure gauge seat on cleaned
spark plug hole (0800-000000-871-002).
Inject compressed air into the cylinder.
Follow the pressure gauge and record the
leaking percentage.
Leaking
percentage
Engine performance
0%~15% Very good
16%~25% Good - wear is evident
26%~40% Bad - Diagnose and repair
≥41% Repair
Diagnose
Leaking reason:
— Intake valve leaking causes air
leaking noise from intake.
— Exhaust valve leaking cause air
leaking noise from exhaust.
— Cylinder head gasket leaking causes
the radiator coolant to bubble.
— Damage/bolt loose causes the
air or oil to come out from
crankcase(See crankcase).
— Damage/bolt loose causes
air or coolant to come out from cylinder
head(See intake pipe, cylinder head
and cylinder body).
— Cylinder body wearing too much/ or
piston ring broken cause the air flow
noise in crankcase(See intake pipe,
cylinder head or cylinder body).
Note: Please check the related chapter
of the engine for trouble diagnosing.
Assembly
Reverse the removal procedures for
installation. Make sure the specified torque
is used and use right materials. Check
exploded views if needed.
1
2