Kohler Courage XT-6

3.3
Section 3
Troubleshooting
3
Basic Engine Tests
Crankcase Vacuum Test
ȱȱȱȱȱȱȱȱ
crankcase when the engine is operating. Pressure
ȱȱȱǻ¢ȱȱ¢ȱȱȱȱ
¢ȬȱǼȱȱȱȱȱȱ
ȱȱȱȱǰȱǰȱȱȱȱǯ
ȱȱȱȱȱȱȱȱ
ȱȱȦȱȱǯȱȱ
Section 2, Tools and Aids. Complete instructions are
ȱȱȱǯ
ȱȱȱȱȱȱȱȱ
DZ
ȱ ŗǯȱ ȱȱȱȱȱȱȱęȱǯȱ
Be sure the pinch clamp is installed on the
hose and use the tapered adapters to connect
ȱȱȱȱȱȱȱȱȱ
ȱǯȱȱȱȱȱȱȱ
ȱǯȱȱȱȱȱȱȱȱ
manometer is at the “0” line. Make sure the pinch
clamp is closed.
ȱ Řǯȱ ȱȱȱȱȱȱȬȱȱȱ
speed (2800 to 3750 RPM).
ȱ řǯȱ ȱȱȱȱȱȱȱȱȱ
ȱ ȱ ǯȱȱȱȱȱȱȱȱȱȱ
ȱ ȱ ȱȱ
10.2 cm (4 in.)ȱȱȱȱȱȱ
ȱǯȱȱȱȱȱȱȱȱȱȱ
ȱȱȱȱȱǻȱǼǰȱȱȱȱȱ
ȱȱȱȱȱȱȱȱȱȱȱ
ȱǻǼǰȱȱȱȱȱȱȱ
table below.
4. Close the pinch clamp before stopping the
engine.
ȱȱȱȱȱȱȱȦȱDZȱ
1. Insert the stopper as in Step 1.
ȱȱŘǯȱȱȱȱȱȱȱęĴȱȱȱȱȱȱ
stopper. Be sure the gauge needle is at “0.”
ȱȱřǯȱ ȱȱǰȱȱȱȱŘǰȱȱȱȱ
ȱǯȱȱȱȱȱĞȱ
ȱȃŖȄȱȱȱǰȱȱȱȱȱȱ
ȱȱǯȱȱȱȱŗŖǯŘȱȱ
ȱ ȱ ǻŚȱǯǼȱȱȱȱȱǯ
Compression Test
ȱȱȱȱȱȱȱ
compression release (ACR) mechanism. Because
ȱȱȱǰȱȱȱĜȱȱȱȱ
accurate compression reading. As an alternate, use the
leakdown test described on Page 3.4.
Possible Cause Solution
ȱ ŗǯȱ ȱǰȱȱȱ¢ǰȱ
reassemble, and recheck pressure.
2. Replace all worn or damaged seals and gaskets.
ȱȱȱȱȱȱ¢ǯȱ
ȱȱȱȱȱȱ
ȱ¢ǯ
ȱ řǯȱ ȱǰȱǰȱ¢ȱǰȱǰȱ
ȱȱǯ
ȱ Śǯȱ ȱȱȱȱĝȦ¡ȱ
¢ǯ
ȱ ŗǯȱ ȱȱȱȱǯ
ȱ Řǯȱ ȱȦȱȱǯȱȱȱ
¢ȱȱǯ
ȱ řǯȱ ȱ¢ȱȱ¢ȱǯȱęȱȱ
¢ȱȱǯ
4. Restricted exhaust.
Incorrect Vacuum in Crankcase