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8
93
91
92
94
Dyno testing of engine
After you have placed the engine on the brake (g.94) perform
the following:
1. Check the oil level (g.95).
2. Start the engine and let it idle.
3. Check the oil pressure on the pressure gauge (g.92)
4. Run in engine before testing it at full power.
Checking for oil leaks
1
. Remove the exhaust gas collection pipe from the inlet
manifold and close the connection with a plug (g.93).
2
. Start the engine and let it run for a few minutes. The high
pressure generated in the crankcase will show up any oil
leaks.
3
. Reconnect the exhaust gas collection pipe to the inlet
manifold.
Checking oil pressure
1
. Remove the bolt from the hole in the crankcase and t a
pressure gauge with 0 to 10 kg/cm² full scale (g.92)
2. Start the engine, accelerate to 3000 rpm and wait for the oil
to reach a temperature of 70 to 80°C.
3.The pressure reading must be between 2.5 and 4 kg/cm².
4. Reduce engine speed to minimum; the pressure should not
fall below 1 ÷ 1.5 Kg/cm² with oil temperature of 80°C.
Speed adjustment (g.91)
When the engine is hot set idle speed at 1000 rpm and
maximum no-load speed at:
ENGINE TESTING
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