Ignition Problem

[jeanp]

Hi, need help again,

I did receive my engine (the one that came from DPLLC) had it re rebuild when i tried to fire it up

nothing went OK did check lots of things. then realized that  at TDC on cylindre 1 the rotor in the

distributor was pointing to number 5 plug (one notch to far) looked at datsun books and they

say to aligned the distributor shaft at  the projection of 11:35 and the drawing show the shaft

at 11:35 witch is lets say  \  i did switch all my plug wires one pin counter clockwyse and the engine

started. Is the drawing wrong and should it be aligned   /  like if you look at it from top at  01:35

Should i remove the oilpump and align this at 01:35

 

Jean-P

 

[jeanp]

A little drawing

igintion.pdf

[jeanp]

Found a picture in one of Blue post and 11:35 looks OK

how can it be that the metal part of my roter gets where

number 5 cable plugs in. How can it be that the engine

starts with the move of every wire one slot counterclock wise.

with correct alignement of the shaft???

Jean-P

 

[Zed Head]

What type of ignition system are you using?  Distributor type, points, electronic, Crane, MSD, etc.  The spark will just go to the closest electrode to the rotor when it's triggered.  So your spark is getting triggered when the rotor is closest to #5.  By moving plug #1 wire to the #5 spot, you've set everything to where it should be to time from #1 wire. 

You can study your triggering mechanism to see exactly when the spark should be happening and make decisions from that point.  Could be that your triggering device in the distributor is moved.

[siteunseen]

I thought it was 11:25?  If it turns counter clockwise 11:35 would be retarded, right?  Everything happens later than it should.  Could you move the cam sprocket to a higher number to advance it and make up for the retard?  

No answers just questions but I think that would work. 

[Mark Maras]

16 hours ago, siteunseen said:

I thought it was 11:25?  If it turns counter clockwise 11:35 would be retarded, right?  Everything happens later than it should.  Could you move the cam sprocket to a higher number to advance it and make up for the retard?  

No answers just questions but I think that would work. 

 Cam timing and ignition timing are two different things. Don't change your cam timing if you're sure it's right. 

[siteunseen]

5 minutes ago, Mark Maras said:

 Cam timing and ignition timing are two different things. Don't change your cam timing if you're sure it's right. 

Thanks Mark, I always get that wrong.  One day I'll figure it out. 

 

[jeanp]

Running pertronic ignition with stock distributor and flame trower coil.

sorry about 11;35 it cant be the shaft need to be broken to do so.

11:25  I just realized that i have unstable fire on cilinder 1 and 6

i changed my plugs started the engine ran pretty bad stop it

removed all plugs cilinder 1 and 6 never fired. took a minute to

test compression as i was there with no plugs on the engine

150, 149, 150, 150, 150, 150

i was amased how even the readings are.

I think i need a new distributor cap. even if it realy look OK

 

Checked wires with OHM tester wires are OK

 

 

 

Edited May 18, 2016 by jeanp