Jump to content
Email-only Log-Ins Coming in December ×

IGNORED

Plug wiring for distributor 1974 260z


russo

Recommended Posts

My 260z distributor is acting up.  I purchased a rebuilt unit but it has a 3 prong plug and the original distributor had a 2 prong.  Does anyone know how to wire in the new plug?  I need to alter the stock plug on the car to a 3 prong but need to know where they go.

20210718_165202.jpg

20210718_165206.jpg

Link to comment
Share on other sites


FYI: Here is a listing for a manual transmission distributor. It says "Not in Stock". I don't know if that means they can or cannot get it. Some of us tried to order windshields through Summit a couple of years ago, and that turned out to be vaporware.

https://www.summitracing.com/parts/aaz-31-615/make/nissan/model/260z/year/1974

Link to comment
Share on other sites

I thought the three-wire plug from the distributor would be for a dual pickup distributor. He should able to just use one pickup, right?  Find the common wire and use one of the others. 

Take the cap off and see how many pickups there are.

image.png

image.png

Link to comment
Share on other sites

3 hours ago, Zed Head said:

I thought the three-wire plug from the distributor would be for a dual pickup distributor. He should able to just use one pickup, right?  Find the common wire and use one of the others. 

Take the cap off and see how many pickups there are.

image.png

 

The three wire distributor is for a dual pickup...for an automatic transmission 260Z. In theory, the OP could cut the plug off his wiring harness and off the new distributor to wire them correctly.  I wasn't sure if he wanted to cut connectors off. Finding the common wire isn't difficult. Finding the wire that goes to the correct pickup is more of a challenge. There is no place to put a meter probe to find out, so you have to trace the wire by hand. Here's a photo of a dual pickup distributor.

20210722_191910[1].jpg

I did some examination of this distributor and it looks like the female terminal by my thumb is for the pickup closest to the vacuum advance.

20210722_193948[1].jpg

Link to comment
Share on other sites

So you're saying he's got a chance?!   He could probably just connect a wire and if it runs it's right.  Right?  If he has a manual transmission.

The real question might be "what does 'acting up' mean?"

7 hours ago, russo said:

My 260z distributor is acting up

 

Link to comment
Share on other sites

By acting up I mean vacuum advance does not work, does not idle well until warmed up, runs poorly when driving, poor power, stumbles acts like  a few cylinders are not firing.  Can pull plug wires and nothing changes.

Link to comment
Share on other sites

The new distributor will certainly fix the vacuum advance issue.  Not so sure about the other problems.  Of course, you could also have a centrifugal advance problem too, so that might help.

Anyway, if you have a manual transmission car then you can just use one of the pickups in the distributor and let the other one ride along.  They will both put out a voltage pulse but only one will be used.

One step on a long path.  But it's a good hike.  Good luck.

Link to comment
Share on other sites

If both the pickups are moved by the vacuum advance plate, then it really doesn't matter which one he uses. Just set the timing with a light and everything else should come out in the wash, right?

The two pickups never change with respect to eachother. They're a fixed delta under all conditions.

  • Agree 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   1 Member, 0 Anonymous, 783 Guests (See full list)

×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.