I finished assembling my old Skoda Estelle engine, fully tighten, valves calibrated, etc. It turns, a bit "tight" i.e, not "loose" like before but it may be because I put new rings and different liners. It turns but it won't start. I didn't mess with the timing, so it is set exactly as it was running. I see spark in the coil, spark in the wires and spark in the plugs. I see the carburetor jetting gas, but still won't start. No gas smell neither. One thing I noticed is that the spark plugs are not getting wet in gas. I tried with the choke a few times, didn't start and the spark remains dry. When choking and gassing for long time, the spark should be wet.
So any ideas??
After a few (almost a lot) of cranking :) the sparks should have at least a gas moist, they should smell to gas, but they don't, they are completely dry. Choking the carb will make the sparks even more wet, but nada. So no fuel seems to get in. Then I took the carb off the manifold, I see it jets down gas when moving the trigger. In the carb seat in the manifold, there are two entries, one is like a bottle cap upside down, there I see some gas deposited, not "much" but some. In general, no gas or fumes smell whatsoever. I will try feeding the carb directly (hose and bottle instead from the gas pump, we call it a "serum" :) ), after I disassemble and put it back, just to be sure it is clean. It shouldn't be dirty, it was working ok, but only God knows :)
On the other hand, when I rebuilt the gas pump I see it was clogged with soil everywhere and barely pumping. So I re-did it and it pumps now like new. When I installed it I could prime it nicely, gas went up to the carb in no time, but after the cranking sessions, I still could prime it manually anytime. It shouldn't, right? Since sometimes the camshaft should be in the pumping position, so the manual primer lever can't move more, since the pump shaft is already pushed by the camshaft. I can move its manual primer any time, so seems to me maybe the camshaft is not moving the pump, then no gas up to the carb. I had to fabricate the Bakelite spacer, since it got a piece of rubber pad instead. Maybe the thickness is too much, but I left it about 5mm thick. However I don't see the line getting dry, no air bubbles...acts more like the carb is already filled up and no more gas gets in. Definitely "maybe" the carb/engine not sucking enough?
I hope I'm not having to uncap the engine again :(