Yes I'm in France. Leroy, thank you for your PM but for some reason I can't reply to it.
Let me answer to your questions :
Have you made sure the fuel line is not backwards?
I think so. I put the return line into a tank to see if the fuel pump is working, and there is a steady flow when the engine is cranking. I assumed the fuel lines are correctly hooked up.
This is a picture of the fuel lines :
Will it fire on starting fluid?
Not tested yet but I will.
When you set the timing marks did you have the engine on top dead center by the mark on the balancer on the timing cover? and on the top gear were the marks aligned?
Yes and yes.
Did you use a picture to line them up?
A picture ? I've mainly used the fq101 website instructions.
Did you use new lifters or did you pre oiled the lifters?
I've used the original lifters but I cleaned and pre oiled them before reinstalling.
Did you bleed off the lifters when installing them?
Ah, no I didn't. How do I suppose to bleed a lifter ?
Does the engine turn over real fast with the no start?
No, it turns normally.
Were the valves ground or new valves?
The 6 valves are new.
The way that can be checked is with a compression gauge?
I have 9.0 bars in the 3 cylinders.
Is your car a G&K car?
Sorry, I don't know what a G&K car is
Do you have access to a STAR machine?
No but I have a Scantool with genuine ELM327. No DTC recorded. All sensors are sending correct values. For instance, advance timing shows 4 to 6 deg BTDC when cranking.
When you installed the rings did you check to make sure they were the correct ones.
I bought them in a Mercedes store with the VIN of the car, so I guess they were the correct ones. If not, I suppose there would be no compression at all, or a very low compression.
Anyway I hugely appreciate the help, that's very nice !