Hey guys. As the title states the old dirt turtle cranks but wont fire. Took it for a 300km drive and the next day it wouldnt crank start. If you roll start it runs fine no smoke sputtering nothing just a good solid runner. This will be a long list so i appreciate anyone taking the time to read.
Whats new.
Engine rebuilt about 1yr ago. Injectors and pump new with rebuild. Same with glow plugs. New 810 cca battery and crank angle sensor. Stater rebuilt 2yr ago.
What ive checked.
Fuel at injectors. Direct feed to pump to watch diesel level drop in a clear container. Timing is fine. Filter clean and fairly new. Tank clean. Lift pump solid. Airfilter clean. No egr. Pcv re plumbed to chassis rail and butterfly removed. Zero buildup of gunk in intake. Glow relay tests fine not that old. 12v at rail times out at 5sec. Plugs bench test fine. Coolant temp sensor good and has 5v. Fuel cut solenoid has power and looks okay. Ecm realy swapped. Maf clean. No codes show. Will show if you unplug sensors one at a time but clear after plugging back in. All earths fine. 12v behind ijnition barrel for both constant and ignition power and no drop in test light brightness under cranking. No aftermarket stuff connected.
Had a auto sparky look at it and he couldnt get it.
I am out of ideas. Any help is appreciated.
Cheers.