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Q: What term is used to describe the cylinder volume between the position upper compression ring and its leading edge?
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Why is the gasket fitted between the cylinder head and the engine block?

It is there to stop the fluids and compression from leaking out.

What is the compression ratio of and engine?

Compression ratio is the difference in the volume of a engine cylinder between when the cylinder is at it's largest volume, compared against when the cylinder is at it's smallest volume. Gasoline engines use 8:1 to 12:1 compression ratio. Diesel fuel engines use 14:1 to 25:1.

What is the cylinder compression for a 2003 90 hp mercury outboard?

I have a 2005 and compression should be close to 120 psi. Normally a good engine will have compression between 115 and 130 psi but a leak down test should be performed also to know the full condition of a cylinder.

What is bore and stroke in a motorbike?

Bore is the diameter of the piston/cylinder, stroke is the distance the piston can travel between its highest position and its lowest position in the cylinder.

What is the compression on a Chevy 366?

150 psi per cylinder with +/- 20 psi difference between cylinders

How much compression per cyinder?

The amount of compression in a cylinder in an internal combustion engine typically ranges from 8:1 to 12:1. This ratio represents the difference in volume between the cylinder when the piston is at the bottom of its stroke (largest volume) and when it's at the top of its stroke (smallest volume). This compression ratio affects the engine's efficiency and performance.

Is the distance from one compression to the next compression is the amplitude of a longitudinal dinal wave?

No, the distance between one compression and the next compression in a longitudinal wave is its wavelength, not its amplitude. The amplitude of a wave is the maximum displacement of a particle from its rest position as the wave passes through it.

When a gas is compressed in a cylinder what does the distance between the gas molecules do?

The compression will result in a lowering in the average distance between molecules of the gas. Imagine that the cylinder is like that in an internal combustion engine, with a piston inside the cylinder. The compression is accomplished by pressing the gas into a reduced volume. The number of gas molecules remains the same. With the same number of molecules in a reduced volume, the gas molecules are pressed more closely together, lowering the average distance between the gas molecules.

What does a compression test tell you?

A compression test can tell you many things such as if you're getting blow by. which means one of two things either all the compression ring gaps on the piston line up in sync or possibly you have a crack in your cylinder. Also if you have the distributor shaft apart from the engine a compression test will help indicate when the proper piston is at TDC (top dead center). If you get low compression on one cylinder, put a teaspoon of engine oil down the bore. If the compression improves, then you have a worn bore or rings. If there is no difference, you have a burnt valve. If two adjacent cylinders are low, it is very likely that you have a blown cylinder head gasket between those cylinders. This could also include a warped cylinder head and may need skimming.

A wire came unplugged by your emergency brake in the middle console could this cause your key to get stuck in the acc position?

NO, an unplugged wire is electrical, and the turning of the ingnition lock cylinder is purely mechanical. Therefore there is no cause/effect relationship between the two. What you describe is pure coincidence, and not a cause for the sticking lock cylinder.

What is the compression and spark gap supposed to be on a 96 explorer with a 4.0 liter?

The spark plug gap is .054 inch Another fellow did a compression test on his 1991 or ? and his lowest cylinder was 145 PSI and his highest cylinder was 150 PSI It is the difference between the lowest and highest cylinders, so his engine was in good shape.

What is the cylinder compression on a 1994 Isuzu trooper?

I'm not sure of the exact values; they should be in your Haynes repair manual. However, if you compression test all of the cylinders and find one that is lower you have a compression problem with that cylinder. It is also possible to have 2 that are lower, this would most likely indicate a warp in the head between those two cylinders. Other causes for compression loss are damaged or gunked up valves that do not close all the way or a crack in the head.