Learning

A compression test is the best way to determine if an exhaust valve is starting to burn?

TRUE

FALSE

Please select an option. Incorrect With a Borescope you can see the pattern on the face of the valve to determine its health.

If you see the exhaust valve has turned Green along its edge, is it healthy or should it be replaced.

The valve is healthy

The valve should be replaced

Please select an option. Incorrect Replaced - With Exhaust Valves, Green Means STOP

Which engine manufacturers use which types of exhaust valves?

Continental uses solid stem exhaust valves and Lycoming uses Sodium filled exhaust valves stems.

Lycoming uses solid stem exhaust valves and Continental uses Sodium filled exhaust valves stems.

Continental and Lycoming use solid stem exhaust valves.

Continental and Lycoming use Sodium filled exhaust valves stems.

Please select an option. Incorrect Lycoming uses Sodium filled exhaust valves. Sodium helps transfer heat from the face of the valve to the stem of the valve.

It’s common to find large pieces of metal (>1/8 of an inch) in an oil filter.

TRUE

FALSE

Please select an option. Incorrect False. Large pieces of metal will be stopped by the screen on the oil pickup tube in the oil pan.

It’s mandatory to replace a cylinder on a Continental engine if the compression reading is less than 60/80.

TRUE

FALSE

Please select an option. Incorrect False. Continental Service Bulletin SB3-03 provides additional guidance for determining if a cylinder must be replaced when the compression is below 60/80.

Borescopes can be used to determine if the barrel of the cylinder is damaged or is in good health.

TRUE

FALSE

Please select an option. Incorrect Borescopes are a great tool for evaluating cylinder walls, pistons and valves.

A dye penetrant test can be used to determine if there is a crack in an aircraft engine case.

TRUE

FALSE

Please select an option. Incorrect

It’s more valuable when determining engine health to take Oil samples on a regular basis (say every 50 or 100 hours) than only a single sample to check the levels of contaminants and metals.

TRUE

FALSE

Please select an option. Incorrect

During a compression test it’s common to hear air noise coming from the exhaust pipe.

TRUE

FALSE

Please select an option. Incorrect False. Air coming out the exhaust pipe during a compression test means the valve in not seated properly.

A borescope should be used in conjunction with a compression test to get a better idea if a cylinder in healthy or unhealthy.

TRUE

FALSE

Please select an option. Incorrect The combination of a borescope and compression test can give you a much better understanding of the condition of the cylinder and valves than only a compression test.

Test