When you think about it, why would Nissan/Datsun retool up just to make another distributor for another engine? Well I figured they probably wouldn't, and a lot of what I did to the 120Y is based on that principle.
N12 and A15 distributors side by side.
Here is a distributor out of a pulsar, N12 model. Note that the E series motors are pretty much the same too. All the important measurements are the same: diameter of shaft, length of shaft, offsets. So essentially an Nxx/Exx dizzy will go into an Axx motor.
So what's the point?
Pulsar distributors are electronic, readily available and cheap enough. That said, I never got around to sourcing a lectronic one yet, the one pictured here is is a contact points type. However one I held in my hand that *was* lectronic measured up exactly the same. Only prob was the wrecker wanted $120 for it, and it was a rusty old thing to boot. I passed on it.
Here's the plan:
- Source a lectronic one with the firing module from a mid-80's pulsar out of the paper.
- modification 1: As seen, the Nxx dizzy is mounted on the back of the cam, being an East-West motor typically, so thus does not have a cog. However the Axx dizzy cog will slot right on, but will need a newhole drilled through it. The dizzy will sit about 3mm further into the block, I don't see any problem with that however.
- modification 2: the dizzy bolt up slotted mounting flange is in the wrong place. Angle grind/drill a new slot in the right place.
- Hook up the electronics, get your timing right and away you go!
Minor differences in mounting.
I never did get around to doing this, but a guy in the Eastern states tells me he made it work. Excellent.
Original JAW, 17 Feb 1999