should be in between intakevalve movement and exhaustvalve movement
Yes, valves should be closed.
#1 piston should be at TDC and both valves closed (compression stroke)
If the timing is retarded due to cam and crank timing, the answer is YES. If it is due to distributor or ignition timing NO. Compression is produced mechanically when all the valves are closed during the compression stroke of the piston. If all is well (rings and valves), you should achieve optimal compression from the engine. Almost all gasoline engines require a least 80 psi to fire the cylinder.
Well if you lined up the timing marks properly then it would not matter. The engine would run anyway.
Neither, on a 4 cycle engine the timing is set at the end of the compression stroke of the number 1 cylinder.
The timing gears basically first the cylinders in the right sequence and when the compression is at it most optimum
Timing marks for twin cam 1.6L B6 engine. When crank pulley is at TDC on the compression stroke, 'E' & 'I' on the camshaft pulleys should be at 12 o'clock. Too easy.
Yes, if #1 is at TDC on the compression stroke.
get the #1 up on compression stroke crank gear mark at 12 & cam gear at 6 this should work
Look for detent marking on camshaft sprockets and align them with timing marks on cylinder head, should be visable markings and ensure that engine is at TDC on compression stroke, and timing marks should all line up
More than likely your timing belt is not installed correctly so you have open valves when they should be closed to have compression...
No. Low compression does not effect timing but timing can affect compression.
You've realigned the marks, but did you check which piston stroke? The marks will align in two instances, top dead center on the compression stroke, and top dead center of the exhaust stroke. I'd bet money that you've aligned the timing marks to TDC exhaust stroke. That would explain 0 compression in all cylinders. Rotate your crank shaft by itself (leave the camshaft where it is) 360 degrees (one full turn) and you should then by aligned to TDC compression stroke, as it is supposed to be.