Originally Posted by artmos
oil burner is a wayne mod. msr. not getting a flame from the burner.
so far here is the situation:
the oil tank is inside- room temp.
put a new inline oil filter in yesterday- the old one was fine-not clogged up at all.
getting good flow from tank to the fuel pump.opened up the bleed valve and oil shot out strong.no air lock in line.
took the whole unit out of the furnace mounts and checked the electrodes.-they are arcing correctly.
unscrewed the flow nozzle and the screen was clean.don't know if the nozzle is plugged up inside-no way to tell.will get a new one just to be sure,although i don't think this is the problem. not getting flow from the pump.took off the small copper tube from the fuel pump to the oil burner itself. it was clear-nothing clogging it up.
took the pump apart and nothing seems to be wrong. the bowl filter was clean. recleaned it. the plastic rotor on the end of the pump shaft is fine-no wear.cleaned out the entire pump assemble with solvent and a strong air stream.looks like new. put power to it and it seems to be pumping thru the small holes on the rotor.in all,everything APPEARS to be ok with the pump,but i dont know if there are sealed veins inside if the housing that i can" get to.
STRANGE!! these things are not at all complicated and i think i covered all of the possible bases-or have i?
anyone have any ideas? thanks,art
Take the small line, going from pump to burner, off at the burner end and bend it down so you can catch oil in a container. Now try running a heat cycle and see if you get oil out of that small line. If you don't then try bleeding the pump while you still have the small line off.
If you don't get oil and you now oil is coming to the pump, then eater the pump is not turning, drive couple bad inside, shaft in pump is turning but gears
are not turning because of a pin broke off inside of pump. Paul