No oil to bar - Poulan 14" Chainsaw

I put some gas in the oil tank after draining it, replaced the lid, and shook it for a bit; then I emptied, refilled with bar oil and closed it up. I went over the bar really well; I had forgotten the passegeways between the oil holes and the groove that the chain runs in, but I unclogged them. Oil still doesn't come out with engine running and bar off or with the bar on. Seems like there is a diaphragm pump under the clutch that runs off the shaft that's not working. I put some gas in the oil tank after draining it, replaced the lid, and shook it for a bit; then I emptied, refilled with bar oil and closed it up. I went over the bar really well; I had forgotten the passegeways between the oil holes and the groove that the chain runs in, but I unclogged them. Oil still doesn't come out with engine running and bar off or with the bar on. Seems like there is a diaphragm pump under the clutch that runs off the shaft that's not working.

It depends on what model this is, most machines will have a mechanical oil pump behind the sprocket, either driven by the sprocket itself, or driven by a gear predded onto the crank, if the drive gear is metal, then the pump shaft gear will be nylon, it may well have striped this gear, to get to this you will need to remove the clutch and sprocket, clutchs are usually just spun onto the crank with a left hand thread, this is why you should NEVER run the saw without the bar and chain fitted, or the clutch could fly off the end of the crank and cause personal injury.once the clutch and sprocket are removed you should see the pump, check both drive gears, pull the pick up pipe out and check for blockages. It depends on what model this is, most machines will have a mechanical oil pump behind the sprocket, either driven by the sprocket itself, or driven by a gear predded onto the crank, if the drive gear is metal, then the pump shaft gear will be nylon, it may well have striped this gear, to get to this you will need to remove the clutch and sprocket, clutchs are usually just spun onto the crank with a left hand thread, this is why you should NEVER run the saw without the bar and chain fitted, or the clutch could fly off the end of the crank and cause personal injury.once the clutch and sprocket are removed you should see the pump, check both drive gears, pull the pick up pipe out and check for blockages.