I have a 73 240Z with a L28 motor. I installed a new coil and the car started once. After that, the car won't start - i.e. the motor cranks but won't start. I believe I wired the coil correctly. Anyone have any suggestions? I'm new at this. Thanks.
Yes I have, I'm 99% sure it's getting fuel. I'm pretty sure it has something to do with the wiring of the coil and the resistor block, but I've been unable to locate a diagram in any of my manuals (i.e.. Haynes, Chilton, etc.) Thanks for the response.
Well since all the wires are wrapped in tape. What you might want to do, is follow the capacitor on the firewall one end goes from the coil posative to the cap, from the cap to the battery. The other side of the coil is ground so make cure it has a good ground, also make sure you have no cracked or damaged wires.
one way to test the coil is run a wire from the battery to the + side of the coil. one another wire from the - to a solid ground on the motor.
one way to test the coil is run a wire from the battery to the + side of the coil. one another wire from the - to a solid ground on the motor.
Thanks, someone here at work tells me that I can switch the coil wires and it really won't do any damage to the coil - they also suggested that I should remove both wires, put a voltmeter on the positive wire, turn the key on, and see if I'm getting any juice.
Thanks for your comments.
Thanks for your comments.
Guest
Quote:
Thanks for your comments.
There should be two black wires with a white stripe,one with a black plastic cover one without. the thick one goes to the ballast resistor next is a white wire with a green stripe,that one goes to the other end of the ballast resistor the wire thats left over is a thin black wire with a white stripe, that one goes to coil +. that should get you going good luck.Originally Posted by ayperric
Thanks, someone here at work tells me that I can switch the coil wires and it really won't do any damage to the coil - they also suggested that I should remove both wires, put a voltmeter on the positive wire, turn the key on, and see if I'm getting any juice.Thanks for your comments.
Thanks, I got the car started but now it runs very rough - it's only running on two of the six cylinders (the two closest to the firewall). I guess I need to get a compression gauge to determine if I've blown a head gasket. Any input would be appreciated - I hope it's something smaller like a distributor cap or electronic module.
The Evil Twin
How long did you run it though? With all the times you tried to start it, do you think you flooded the engine? some spark plugs can go bad just from doing that for a couple days.... and with those huge carbs it won't be hard to flood it. Try removing the spark plugs (all six) and just clean them with a fine wire brush. Check the gap and put them back in. Lean down your sidedrafts a little unless you know they are all tuned and balanced perfect. Start the car and warm it up before you go any further.
Thank you. Last night I replaced all the plugs with new NGK. I was amazed how much oil was on the plugs that I removed. The car started right up and ran on all cylinders. Thanks for everyone's comments and helping me through this.
Paul
Paul
