Kohler Courage XT-6

9.3
Section 9
Inspection and Reconditioning
9
Normal:ȱȱĞȱȱȱȱȱȱȱ
can be reconditioned and reused if the face and
margin are in good shape. If a valve is worn to where
the margin is less than 1/32" do not reuse it. The valve
shown was in operation for almost 1000 hours under
controlled test conditions.
Leakage:ȱȱȱȱȱȱȱȱȱȱȱ
allow leakage, resulting in a valve burned on one side
only.
Bad Condition: The valve depicted here should be
replaced. Note the warped head; margin damaged
ȱȱǯȱȱȱȱȱĴȱ
to excessive hours or a combination of poor operating
conditions.
Coking: Coking is normal on intake valves and is not
harmful. If the seat is good, the valve could be reused
Ğȱǯ
Hard starting, or loss of power accompanied by high fuel consumption, may be symptoms of faulty valves.
ȱȱ¢ȱȱȱȱĴȱȱȱǰȱȱȱȱȱȱęǯȱĞȱ
removal, clean the valve heads, faces, and stems with a power wire brush. Then, carefully inspect each valve for
ȱȱȱȱǰȱ¡ȱǰȱȱȱȱǯȱȱȱȱȱȱȱȱǯȱ
ȱȱȱȱȱȱȱȱȱȱȱȱ¢ȱǯ