When I got it (used), I was able to do the oiler test (pointing the chain at a log and reving the engine to see the oil stream). Then one day a few weeks later it just stopped oiling.
I broke down the assembly and it's a few parts: crankshaft oiler gear, oiler pump, aluminum housing, and rubber tube. All of these parts appear to be in great shape. No stripped gears.
The bar itself is clean and the oil hole is not plugged.
I see what appears to be a bronze or brass screen which I'm guessing is the vent to let air into the housing. This is clean.
If I start up the motor with no bar or chain I get a tiny flow of drops. If it was working, wouldn't quite a bit spray out or a stream?
With the bar on, I see oil pooling in the groove the chain rides on, which looks good, however when I install the chain I don't get much if any oiling happening.
Is there anything else I can check?
With the oil pump assembly removed (including rubber tube), and the saw sitting on the bench, oil should pour out right? It pours out on its side, but not when sitting "upright".
The resivoir appears clean, but maybe there's a clog?
Any other tips? Does it need to be primed or will gravity self-prime it? Is the cap vented?
This is a non-adjustable oiler.
Edited by CPOM, 06 July 2012 - 08:46 PM.