- Joined
- May 10, 2020
- Messages
- 103
First of all, the bike runs good, there is good oil return to the tank. I have no way of monitoring the pressure, apparently Norton didn't think it was critical. I wasn't too concerned, until I had the inside primary off to rebuild the gearbox. I was waiting on parts, went out of town for about 10 days, only to come home and find about half the oil drained out of the tank, through the low bolt hole in the crankcase. Anyway, I finished the gearbox, got the bike back on the road, it still runs fine, and the gearbox shifts good, and is nice and quiet.
Now I am paying much closer attention to the oil. It doesn't have to sit too long (over night) before enough oil goes into the crankcase, then gets puked back to the oil tank through the vent pipe, when I start it. (I'm fairly certain this doesn't have a cam driven vent). My BSA buddies have antisump ball/check valves on those inferior machines, I know there are many options I can do with antisump valves, but I want to be assured the oil pump is working right.
Is it worth re-building the pump, or is it better to replace it? Should I devise a way to check the oil PSI?
Now I am paying much closer attention to the oil. It doesn't have to sit too long (over night) before enough oil goes into the crankcase, then gets puked back to the oil tank through the vent pipe, when I start it. (I'm fairly certain this doesn't have a cam driven vent). My BSA buddies have antisump ball/check valves on those inferior machines, I know there are many options I can do with antisump valves, but I want to be assured the oil pump is working right.
Is it worth re-building the pump, or is it better to replace it? Should I devise a way to check the oil PSI?