I agreed to fix this saw as I owed a friend money. It's been a losing battle where now it's costing me triple time.
Saw would not oil. Very low hour, just stopped he said.
Tank spotless, passages all clear. No debris in the oil pump body. No damage to drive gears. Messed with it so much that I wrecked the clutch taking it on and off. 4 hours.
Figured the aluminum pump cylinder was worn out of spec. Replaced the piston shaft/gear, cylinder, and hose and clutch. Same problem, no oil.
Through more messing around, seemed to begin to get oil. Tiny bit... A shimmer. But... Clutch locks up very shortly when I'm out in the field using it. The worm gear on the crank is now mashed and melted and binds the drum when you tighten the clutch. 3 hours.
I'm basically doing more and more damage the more I work on it and if you take off the pump hose oil just runs out of the saw but won't pump it. I could find absolutely nothing wrong with the pump worm gear so I didn't replace it. Now I have buy and pay shipping on that part because somehow I destroyed it.
The only thing I can think of is that the wire spring wrapped around the plastic walked down the shaft somehow, the pictures I'm seeing online seem like the it's further down the shaft even though there is a plastic stop the wire is engaged on clearly on my part. You can feel the worm meshing the shaft gear when putting it on the crank even
Getting a bit frustrated.
Saw would not oil. Very low hour, just stopped he said.
Tank spotless, passages all clear. No debris in the oil pump body. No damage to drive gears. Messed with it so much that I wrecked the clutch taking it on and off. 4 hours.
Figured the aluminum pump cylinder was worn out of spec. Replaced the piston shaft/gear, cylinder, and hose and clutch. Same problem, no oil.
Through more messing around, seemed to begin to get oil. Tiny bit... A shimmer. But... Clutch locks up very shortly when I'm out in the field using it. The worm gear on the crank is now mashed and melted and binds the drum when you tighten the clutch. 3 hours.
I'm basically doing more and more damage the more I work on it and if you take off the pump hose oil just runs out of the saw but won't pump it. I could find absolutely nothing wrong with the pump worm gear so I didn't replace it. Now I have buy and pay shipping on that part because somehow I destroyed it.
The only thing I can think of is that the wire spring wrapped around the plastic walked down the shaft somehow, the pictures I'm seeing online seem like the it's further down the shaft even though there is a plastic stop the wire is engaged on clearly on my part. You can feel the worm meshing the shaft gear when putting it on the crank even
Getting a bit frustrated.
