Question about Poulan Pro Chain Saw 46cc 20"

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Pp4620avhd (Oil pump does not work)

I have several saws but this one is my fav.(maybe because it was inexpensive and for two years has never let me down till now)
I've removed the oil pump several times in hopes to find dirt or something wrong.
The first time I completly disassambled the pump & removed the oil pickup and filter then washed the out tank and blew out the tank with compressed air still no oil, so I took it apart again to be sure i didn"t overlook something, still no oil.
The worm drive looks perfect, the shaft with the two flat sides that actually pumps the oil fits perfectly in the barrel, the two holes in the barrel are clean, the seals are in perfect shape the filter is clean, hell I even removed the filter & tried running it without, still NO OIL????????
If you can offer any assistance I'd appreciate it very mutch.

Thanx in advance,

Posted by on

  • geek1945ct Nov 05, 2008

    Same problem and did same as Paul. Is ther a pressure applied inside the oil tank to push the oil out and this "pump" is just a device to meter the oil?




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Poluan has redesigned the oil pickup from multiple pieces, to a single rubber piece that fixes this problem as well as the leaking after shut-off. Its only a couple of dollars, and actually works

Posted on Dec 30, 2008

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Hi Paul,
If all these oil lines are clean and the spiral wire in the main shaft is not turning on the shaft is the plastic parts that mate with the spiral wire worn so thay don't pump? There is not that many parts in the whole assembly it's got to be something so simple that it's easy to overlook.
I hope this is some assistance - if so please rate the response - I can learn from your rating

Posted on Oct 26, 2008


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