ORIGINAL: layback2
I have tryed everything you guys mention at lease 5 times each the longest it has run was 7 seconds then it would not do it again and that run was a very low idle.i checked the head it was a little loose tighten it.I tryed the different setting of the carb from 3/4 turn to 2 turns i installed a new glow plug kept one off to the side just to check the glow driver for heat it was and is fine.I kept the setting were it has run best for what reason am not sure if something maybe wrong with the engine i was hoping it would hit and stay running but it does not look like it is going to. This has to be the hardest engine i have ever owned to get running and i have a few 1960s new engines that run and start easy.I do not want to give up on it but the time i waste trying to get this engine to run is uncalled for i want to thank everyone for there support
I just read through the thread. Lots of good comments. Let me try a couple.
For one, if an engine doesn't start quick, I usually figure I've flooded it, and walk away for a few minutes, check air in my tires or something, just to stay away & let things evaporate. Maybe turn the muffler down and wiggle the prop so the piston is at the bottom, let anything in the combustion chamber drain out & get fresh air.
Later I start with an empty combustion chamber and fresh air & prime the engine, just a squirt of fuel in the carburetor throat and a few flips of the prop.
At that point, I hook up my glow connector to my adjustable power panel (rather than use a hotshot.) I adjust the current by the meter, up to the top of the green line, and turn the prop in the direction of rotation until I feel some compression, and stop. I let the glow plug heat things up for a while (20 seconds minimum) and flip the prop in the WRONG direction, with a stick. It should pop.
If it didn't pop or start, I DON't hit it with the starter (yet.) I'll disconnect the glow connector, prime again, and turn the prop OPPOSITE the rotation direction, until I feel compression, and stop there while I hook up the glow driver. Wait 20 seconds while it warms things up, and spin with the starter motor. Should pop and run on what fuel is in the crankcase, for a few seconds, regardless of how bad I've botched the needle adjustments. At that point, if it doesn't start, I begin to suspect the fuel. If it starts & dies, I've botched the needles, and start a methodical adjustment.
Anyway, that's my take on it. Don't know if it'll help in this case, 'cause you may have a scuffed piston or something causing extra friction. I fought one of those for, well, too long, and finally took it apart, that's what I found.
Good luck,
Dave Olson