If it has been removed, you could try placing it flat on a known perfectly flat surface. If it is bent you will be able to rock it slightly. Otherwise, any machine shop could check it and tell you, likely for free.
Assuming this is a standard transmission flywheel, if the clutch has been allowed to slip excessively and overheat the flywheel, it may have cracked and warped the flywheel clutch surface allowing the clutch to chatter during take off.
Remove the starter and inspect the ring gear on the flywheel.
Timing is fixed and determined by flywheel. The only way for timing to be off is if the flywheel key has sheared. As the magnets on the flywheel pass the armature (coil), a spark is sent, end of story.
Take the vehicle to a qualified alignment shop, they will be able to tell you if your control arm is bent.
when you have a clutch put in you also have to replace or remove the flywheel and have it refaced to keep from messing up the new clutch, and yes the flywheel is suspose to turn when the engine is turning, so if the flywheel wasnt replaced or refaced then i would say that the flywheel is what the problem is
Jack it up and spin it.
you may have just sheard the flywheel key , need to remove flywheel and replace key
Which ever one you think may be bent, Just take it out and roll it on a flat surface. If it is bent bad you will have a engine miss on that cylinder.
No. The most common way to tell if a frame is bent is if the roof is buckled.
if the starter is bad you will hear one single click, if the flywheel is bad it will sound like a heard of daemons are trying to exit from under your vehicle. if its your flywheel you will know what i mean by the comparison
Do a compression test.
Take it to an alignment shop.