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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is the purpose of engine dampers on crankshafts? |
They reduce engine vibration |
Something about vibration |
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What types of bearings are generally found in reciprocating engines? |
Plain, ball, and roller. |
Pbr |
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Are the connecting rods used in each cylinder of a radial engine the same? Explain. |
No. Radial engines use master and articulating rod assemblies. |
Article? master? |
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Name the different types of piston rings. |
Oil control, compression, and oil scraper. |
Ol and pressure |
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Where should piston ring gaps be installed relative to each other, and why? |
Compression rings gaps should be staggered so that they do not align. This prevents excessive blow-by. |
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What purpose do oil control rings serve? |
They regulate the thickness if the oil film on the cylinder walls |
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What could be the result from incorrectly installed piston rings? |
Excessive oil consumption. |
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What is used to help prevent valve surge or floating in an aircraft engine? |
Two or more springs on each valve |
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On engines equipped with hydraulic valve lifters, what should the running valve clearance be? |
Zero |
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What is the purpose of valve overlap? |
It allows better volumetric efficiency and lowers cylinder operating temperatures. |
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