Yes
Yes
Yes
The camshaft turns at half the speed of the crankshaft. If you count the gears, you should find that there are twice as many on the camshaft. If you line up the marks at TDC, then turn the crankshaft 360 Degrees, you should find that the camshaft has turned 180 degrees. So, every time the crankshaft turns back around to TDC, the camshaft will turn 180 degrees and if that's what your're seeing, then everything is normal.
the significance of cam position is the cam has to be timed to crankshaft so valves etc open at right time so engine will run correctly
The crankshaft itself has no marks, the crankshaft pulley has one, it's white color. The same is true for the camshaft, it has no marks. But the camshaft pulley has a hole in it. That hole must alighed with the mark behind the pulley and the crankshaft should alighed with its own mark and the camshaft in the same time.
the mark on the camshaft timing gear needs to line up with the mark on the crankshaft timing gear to ensure the camshaft is in proper time with the crankshaft. Keep in mind that the marks will only line-up every other revolution of the engine due to the crankshaft spinning twice as fast as the camshaft.
the camshaft turns once to every time the crankshaft turns twice meaning it is 2:1
the chain keeps the camshaft/valves in time with the crankshaft in order for combustion to take place
The camshaft is most likely out of time relative to the crankshaft.
Camshaft opens and closes the valves The CAMSHAFT is connected to the CRANKSHAFT with gears so that the valves (intake and exhaust valves) are opened and closed at the proper time for each cylinder, and fully sychronized for with the movement of all of the other parts of the engine.
On most vehicles the valve clearance (lash) can be found on the hood decal. The spark plug gap can be found there as well. On the 2001 Honda Civic, the intake valves should be set within the tolerances of .007"-.009" and the exhaust valve clearance should be set within the tolerances of .009"-.011". First you set the engine to top dead center by rotating the crankshaft pulley so the white marker dot is lined up with the timing mark on the engine. Now look for the camshaft pulley where it has the word "up" written on it. The word "up" should be in the straight up position when checking the number 1 piston's valve clearances. Then rotate the crankshaft 180 degrees and the camshaft will turn 90 degrees. The "up" will be facing the 9 o'clock piston and you can then check the number 3 piston's valve clearances. Rotate the crankshaft another 180 degrees and the camshaft will turn 90 degrees again. You can now check the number 4 piston's valve clearances. Rotate the crankshaft one more time 180 degrees and the camshaft will turn 90 degrees again. You can now make the final adjustments on the number 2 piston's valve clearances. The piston sequence runs 1-2-3-4 from the driver side (where the belts are) toward the passenger side.
you dont. It is auto timed thru the camshaft sensor and crankshaft sensor, You have to have the timing belt timing marks right on to get correct timing.
Does the 1991 2.5 s10 have a timing chain or a belt or just mesh gears and how do you replace them The camshaft is gear driven off the crankshaft. The camshaft gear is pressed onto the camshaft. The camshaft must be removed from the engine to change the camshaft timing gear. The timing gears should last the life of the engine. Next time, please don't answer your question with another question.
The length of time or number of degrees of crankshaft rotation between the beginning of injection and ignition of the fuel.