ignition??

[nissan_240sx]

Some plug or whatever prolly came off or something?

[Adam_rex]

from sounds if its not the chain. since your tach is driven by the dizzy i would check that. i dunno why it wouldnt turn over tho. when i blew my dizzy out it still turned over.

[usar89b]

I think Slideways... is on to something here. BTW, did you drive it on July 2nd with no fan? How far did you drive it. Why would you drive it with no fan? Maybe you thought everything was ok and it really wasn't. Not trying to start anything but your car. Just asking.

[Hit_N_Run-player]

thats the wierdest thing ive ever seen,the tach going all crazy like that. You sir have a race KA that revs to 8k, it wont turn over because you need a better starter to turn over your race engine..lol. J/K. I would post in a different forum that has more users.

[slideways...]

check compression, then get back to me.
otherwise, as stated before, your RPM is taken directly from your ignition timing. so somehow your ignition timing isnt directly connected to the rest of your engine...