I am building a 1987 300z and i have a few problems.I took a motor from a running 86 300z redone the seals oilpan gasket ect. Now I have put the engine down in car it will not start.first problem was/is anti theft...no key.next i have this wierd buzz inside the car not of the door chime only when i turn ign. on.also will not turn over.what do i do?????

UC_300ZX

 

Are you sure everything is wired back up properly? Is the distributor and it's drive properly clocked?

 

i think i put the timing marks back in the right place.he book is real sketchy on the subject.though i will take any advice at this point.
Today i reset the distributor and it tried to turn start.but now nothing.i pluged the egr on the intake and exhaust also.i also took the liberty of running 2.5in. exhaust from the cat.how can you tell if the came is on the right stroke?is TDC really top dead center?

N E HELP WILL BE APPRECIATED.

 

the buzz might be a fuel pump... did you do your timing belt? if so, did you make sure all the marks where lined up first?

 

today i got it to crank but it dies unless you give it throttle.is the idle set by the throttle cable?

 

Yes the idle is set by the throttle cable!

If you started the engine completely dri don't be reving it all up and everything for awhile let it sit if you can't get the idle just keep it at about 1k for awhile.

You changed an engine out! Im happy not many people would even attempt that (even plug and play) theres alot you can mess up! You got it cranked and running thats great though

If you hadn't gotten to even crank i would of suggested trying the starter usally when you have power to everything and you hear that hummming noise it means the starter eather needs beat on (bushings need changed) or has gone bad.

So props to you and keep up the good work someone is always here to help!

 

Actually the idle is not set by the cable. The cable is adjustable, but thats for cutting out slack on the line.
It's set by the idle control device.



It's on the driver side of the intake plenum. Look for the adjustment screw, it's the part that sticks out farthest to the driver side of the car.

 

so. why does it die right after it cranks.

thanks for the props and info.

UC_300ZX