I seem to have worn out oil pump in this old red. Stroke is ok, all lines and pipes are clear but still very, very little oil coming to bar. Piston itself is hard steel but cylinder-kind-of part is brass. Would not be difficult make a new one but my lathe has only 13mm jaws and label Makita 18V on side...
So it is clutch driven pump or manual one. There isn't much space for pump in the clutch area so I do need very flat pump. Since many of you guys have long history with chainsaws I'm asking for knowhow. Suggest me flattest pump you know. OR good source for thumb operated manual pump.
Last option could be crankcase pressure pulses driven oiling system.
If I'm lucky with this I may even use this saw for firewood occasionally, although it is more like therapy thing for a me. Artificial aortha rules out a lot of things but fingers still work.