Cub Cadet CC 4BP 32cc - Manual (Page 16)

Trouble shooting
13
5. Connect the tester to an air source set to 90 psi.
6. Adjust the regulator until the needle on the
gauge is in the set region of the gauge.
See Figure 3.9.
7. Connect the tester to the adapter that was
installed in the engine.
8. Read the gauge. See Figure 3.10.
Figure 3.9
Shop air
The “set” region
of the gauge
Figure 3.10
Adapter from
engine
Read the gauge
9. Compare the results to the following chart.
Symptom Possible cause
Air escaping from
the breather Worn cylinder or piston
rings. Possible blown
head gasket
Air escaping from
the exhaust Leaking exhaust valve
Air escaping from
the carburetor Leaking intake valve
Gauge reading low Cylinder and piston rigs
are in good condition
Gauge reading
moderate There is some wear in
the engine, but it is still
usable
Gauge reading high excessive wear of cylin-
der and/or piston rings.
Engine should be short
blocked or replace the
blower.