I have a separate "build thread" somewhere here an Ratsun but I felt this needed its own.....
Sorry for the long post but I want to get all the data out there to help get this resolved.....
Over the past year, I have entirely rebuilt a 96 KA24DE and swapped it into a 79 Datsun 620.
Bottom end and head was assembled by the reputable shop that did the machine work,.
I did timing assembly and torqued down the head myself.
It has the standard KA/240 5 speed behind it (also rebuilt).
Wiring Specialties harness custom made for this application and a 96 KA Auto ECM.
Everything is plugged in and terminated per wiring specialties documentation.
Grounds all over the place, chassis, body, starter, alt, ecm.
Brand new battery.
Proper S14 dizzy.
Good spark on all 4.
Walbro 255 FP and a Tomei FPR set at around 40psi.
Stock KA red injectors (I think). Triple checked the timing - i.e. - I put it at TDC with the finger in the #1 hole trick, long ratchet extension dropped in plug hole is at its top movement.
Crank pulley is on 0deg, the #1
Cam lobes are pointing out at TDC (pics below).
Also did a noid test - injectors are flashing (vid below) and I removed the fuel rail and rigged up water bottles under each injector. They all spray while cranking (a LOT actually).
I just cant get it to start / idle on its own.
some pics / vid:TDC cams:
TDC crank pulley:
FPR:
NOID vid:
What am I missing?
Any help is greatly appreciated.
Dumb theory - Its almost like the injectors are spraying TOO much and flooding the cylinders - like its not presenting an nice atomized spray on the compression stroke - its more like a giant puddle that the plugs cant ignite? I don't know.