240z Distributor help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

DisEpyon · 01-02-2012, 10:53 PM

I need help figuring out the distributor. I have a 1972 240z stock motor (head and block). This is the first time ive owned a car with a distributor so im not too familiar with them.

Is this the right numbering for the wires? I numbered it this way based on the firing order givin in the manual. I did not change any of the wires, so this is how the previous owner left it.

Also to confirm, this is the right firing sequence?

Is this the adjustment i use when timing with the light?

Or is this the adjustment and if not what is this used for?

Epic.Movement · 01-02-2012, 11:05 PM

Firing order/ at head... did search....

The first bolt is used to adjust timing. The other one im unsure i switched over to the e12-80 electric dizzy.

http://datsunzgarage.com/

zspeedrft · 01-02-2012, 11:12 PM

153624 counter-clockwise.....

DisEpyon · 01-03-2012, 01:38 AM

Lol you guys are awesome. So my plug wires in the right positions, just that i have my numbering wrong. The numbering i have for the cylinder head is actually for the distributor cap counter clock wise and the numbering from that is for the head.

Got it,
Thanks for the help fellow z owners

Edit:
Found out that the adjustment closer to the front of the motor is for a coarse adjustment, only use it if the other one runs of out adjustment range.

S13teen · 01-03-2012, 05:38 PM

Quote:

Originally Posted by DisEpyon

Lol you guys are awesome. So my plug wires in the right positions, just that i have my numbering wrong. The numbering i have for the cylinder head is actually for the distributor cap counter clock wise and the numbering from that is for the head.

Got it,
Thanks for the help fellow z owners

Edit:
Found out that the adjustment closer to the front of the motor is for a coarse adjustment, only use it if the other one runs of out adjustment range.

Lol, you got it the other way around.

Cylinders #'s are 1,2,3,4,5,6 From front to back.

Firing order is: 15 is too young. 36 is too old, 24 is just right. Counter clockwise hence, 153624.

#1 is cylinder is usually closest to radiator and you seem to have it right.

Best thing to do is redo the timing. You'd have to remove the plugs, hand turn the crank clockwise to Top dead center. Remove the oil pump insert it back, and make the dizzy rotor line up to #1 of the cap.

Sometimes a timing could be 180* off 90* off, which will sometimes still work, but may run like crap.

DisEpyon · 01-08-2012, 09:34 PM

Well i have bad news, I got the motor in the car and running today but i cant seem to bring the timing to the 5 degree mark. with both of the adjustments on the distributor turned all the way i can only get to the 20 or 25 degree timing mark, the one furthest from 0 mark. Whats my problem? Before i pulled the motor to work on it, i checked the timing and it was at the 5 degree mark, so it was working before. My mechanical timing is right.

Some pics showing my timing. Just took these.

I have the light hooked up to number one cylinder.

The previous owners put this ignition box thing in. I made sure i have it wired in right, i took pics before i removed it so i could see how it looks when to install.

could it be that my distributor drive spindle is off a tooth? so i have to take the oil pump off and reposition the spindle?

DisEpyon · 01-09-2012, 05:57 PM

kool i got it figured out. have full adjustment within the timing marks range.

01-02-2012, 11:12 PM	#3
zspeedrft Zilvia FREAK! Join Date: Apr 2008 Location: LoS AnGeLeS Age: 40 Posts: 1,562 Trader Rating: (54) Feedback Score: 54 reviews	153624 counter-clockwise..... __________________

01-02-2012, 10:53 PM	#1
DisEpyon Zilvia Junkie Join Date: Jun 2005 Location: ? Posts: 574 Trader Rating: (0) Feedback Score: 0 reviews	240z Distributor help I need help figuring out the distributor. I have a 1972 240z stock motor (head and block). This is the first time ive owned a car with a distributor so im not too familiar with them. Is this the right numbering for the wires? I numbered it this way based on the firing order givin in the manual. I did not change any of the wires, so this is how the previous owner left it. Also to confirm, this is the right firing sequence? Is this the adjustment i use when timing with the light? Or is this the adjustment and if not what is this used for?

01-02-2012, 11:05 PM	#2
Epic.Movement Leaky Injector Join Date: Feb 2010 Location: Oakland, CA Age: 34 Posts: 56 Trader Rating: (0) Feedback Score: 0 reviews	Firing order/ at head... did search.... The first bolt is used to adjust timing. The other one im unsure i switched over to the e12-80 electric dizzy. http://datsunzgarage.com/

01-03-2012, 01:38 AM	#4
DisEpyon Zilvia Junkie Join Date: Jun 2005 Location: ? Posts: 574 Trader Rating: (0) Feedback Score: 0 reviews	Lol you guys are awesome. So my plug wires in the right positions, just that i have my numbering wrong. The numbering i have for the cylinder head is actually for the distributor cap counter clock wise and the numbering from that is for the head. Got it, Thanks for the help fellow z owners Edit: Found out that the adjustment closer to the front of the motor is for a coarse adjustment, only use it if the other one runs of out adjustment range.

01-08-2012, 09:34 PM	#6
DisEpyon Zilvia Junkie Join Date: Jun 2005 Location: ? Posts: 574 Trader Rating: (0) Feedback Score: 0 reviews	Well i have bad news, I got the motor in the car and running today but i cant seem to bring the timing to the 5 degree mark. with both of the adjustments on the distributor turned all the way i can only get to the 20 or 25 degree timing mark, the one furthest from 0 mark. Whats my problem? Before i pulled the motor to work on it, i checked the timing and it was at the 5 degree mark, so it was working before. My mechanical timing is right. Some pics showing my timing. Just took these. I have the light hooked up to number one cylinder. The previous owners put this ignition box thing in. I made sure i have it wired in right, i took pics before i removed it so i could see how it looks when to install. could it be that my distributor drive spindle is off a tooth? so i have to take the oil pump off and reposition the spindle?

01-09-2012, 05:57 PM	#7
DisEpyon Zilvia Junkie Join Date: Jun 2005 Location: ? Posts: 574 Trader Rating: (0) Feedback Score: 0 reviews	kool i got it figured out. have full adjustment within the timing marks range.