JX cold start issue

[windy]

Spins over ok but if it doesn't fire straight away I think the diesel washes the oil off the bores & thats likely the only thing giving a good seal, due to the worn bores.
I might be talking total nonsense, but its the only scenario I can think of.
The AAZ needs totally stripping, so anything worn out of spec can be replaced.
Got a feeling there will be an expensive parts list ahead

[clift_d]

You probably know this already, but compression test ideally should be carried out with the engine already warm, i.e. oil at 30°. Specified pressure should be 34 bar (493 psi), wear limit is 28 bar (406 psi), and differential between cylinders should be no more than 5 bar (72 psi).

[dave friday]

are you priming the pump with the ignition on..
Have you tried using a heat gun to heat the inlet air?

[windy]

I'd been on a good run (to borrow an injector socket) before testing the compression so the engine was nice & warm, but thanks for the thought.

I can't squeeze the primer, as its always full, so don't think there is an issue with air in the pump anymore. Its the same with power on or off.

[dave friday]

Heating the inlet (air temperature ) idea is to help with cold starting ( Harrymann s idea )
My daughter has to cycle the glow plugs 3 times if the air temperature is around 8 deg c but only once if it's above 14 c !!