Using directions like upwards in this context is meaningless because you haven't defined how the piston is oriented.During the compression stroke of a typical 4-stroke gasoline engine, the piston takes energy from the crankshaft. The reason the whole scheme still works is that you get a lot more energy back after the combustion during the power stroke. Add up the total energy moved between the piston and the crankshaft over a whole cycle (two rotations of the crankshaft), and you will find the total being positive from piston to crankshaft.
it is going towards the head or up away from the crankshaft
it tells you the direction ur going
The direction you are going in.
north
V1XV2 their crossproduct will be in one direction and the V2xV1 direction will be oppsite. For example. V1 is going right and V2 is going left, their v1xV2 will be going towards you (arrow coming at you). And V2xV1 direction will be going away from you (you shooting arrow at target).
velocity
on the intake stoke, the piston is going down to the bottom of the cylinder. As it is going down the intake valve opens and allows a mixture of air and gas in the chamber. the piston ,once it reaches the bottom of the cylinder,it starts to travel upward(this is the start of the compression stroke) and compresses the air/fuel mixture,and at the same time the intake velve closes,craeting a sealed chamber. As the piston continues to go up it keeps squeezing the air and fuel and just before it tops out the spark-plug fires,igniting this mixture which drives the piston down,starting the power stroke. Power and Intake (novanet)
Change your spark plugs. Check for compression. Check for a seized piston.
need to be more specific on what kind of small engine to give you exact information on how to pull the piston. . . but generally you just need to pull the head and cylinder off. . . the remove the wrist pin that holds the piston to the piston rod and your piston will come out. . . now getting the new one back is is going to be a different story :) . . . you are going to have to stagger the ring gaps to make sure you are holding compression . . . basically just make sure none of the ring gaps on your piston rings line up when you put the new piston back in and oil your cylinder pretty good too helps with putting it in and with breaking in the new piston.
It is if #1 piston is all the way up on the compression stroke.
1000cm
Zero, because it's at the far reaching point before going back the other direction.
The gas Engine is a 4 stroke engine, Nother words the piston must make 4 stroke's to run. Here's the 4 strokes. Entake, compression, power and exhaustWhen you turn the engine over with the starter a piston starts moving, As it starts going down the intake valve starts opening witch lets air and fuel come into the cylinder. That's the intake stroke.When the piston is compleatly down the intake and exhaust valves are closed, When the piston starts back up it will compress the air and fuel, this will be the compression stroke. As soon as the piston reaches the top of the cylinder the spark plug fires witch Explodes the air and fuel mixture that's in the cylinder and drives the piston down. This will be the power stroke. When the piston is all the way down and starts up again, The exhaust valve will open and the piston will push the exhaust gases out into the exhaust pipe. This will be the exhaust stroke. Then the piston starts down, intake valve opens and it does all over again.I hope you understand now. This is all happin real fast
The gasoline is avoided to go into the oil by few piston rings placed on the piston of the engine. Actually, the piston rings are made for this purpose only.
It is ignited by compression. The air fuel mixture is compressed by the piston going up. Some diesels have glow plugs too that heat up the air fuel mixture so it is more easily ignited.
So that they can know what direction they're going, because velolocity includes direction!
Sounds like a siezed piston. This occurs typically from two causes. Either the piston is not aligned perfectly with the cylinder bore or there is corrosion on the cylinder walls behind the piston preventing it from going into the bore. Brake fluid is hydoscopic, meaning it attracts & absorbs water. If the fluid is not changed at the recommended intervals, any moisture in the fluid will cause corrosion in the brake lines, cylinders, etc. The solution is to remove and rebuild or replace the caliper. A flush of the brake fluid would also be prudent. The rear brakes on your '02 s40 are slightly different from the front. On the front, you can press the piston in. On the rear, the piston needs to be screwed in. Notice the slot going across the head of the piston? There is a special tool that looks like a small block and sits on top of piston and a small piece sets in the slot as the block sits on the piston. Turn clockwise to press in. You can use pliers of some sort but need to be careful because you can rip the rubber. You need to turn the piston in clockwise direction to push in the piston
Rotary means going around, like in a Wankel. Reciprocating means going back and forth. like in a ordinary piston engine.