Where is bar oil tank air vent hole on Husqvarna 440...

[jkim13]

Sweet. That rear chain guide plate is looking a bit beat up. May not be seating all that well. Be a good measure to replace it so everything sits tight. Cheap too....

https://www.partstree.com/parts/husqvarna-544284601/

Yes! ordered as well
Thanks again.

 

[Captain Bruce]

The oil line from the tank, is cracked. Replace it. Oil flows freely thru the broken hose, and doesn't oil the chain because it never gets pumped. Simple answer to simple question.

The tank vent is a green dickbill rubber part, hidden behind a plug, and is easily spotted. Pry out the cap, and vent, and replace them; 10 bucks.

 

[jkim13]

The tank vent is a green dickbill rubber part, hidden behind a plug, and is easily spotted. Pry out the cap, and vent, and replace them; 10

The tank vent is a green dickbill rubber part, hidden behind a plug, and is easily spotted. Pry out the cap, and vent, and replace them; 10 bucks.

I couldn't locate it on the 440 model.
Anyhow can you upload the picture for the location of duckbill and plug?
Thanks in advance

 

[Chevboy0167]

That hole there....
Parts 7 and 8 go in there in that order.

https://www.partstree.com/models/440-e-husqvarna-chainsaw-2009-02/crankcase-7/

 

[jkim13]

The problem with the oiling is caused by the rear chain guide plate not oil pump nor rubber boots.
Once I replaced the plate, the oil came out as it should have.
I guess the plate makes air circulation to the oil pump for pumping the oil. Once it was bad, it didn't circulate the air enough to the pump.
Additionally, this particular model doesn't have duckbill nor plug(very strange)
Thank you for all of your help.
John

 

[Chevboy0167]

Cool beans. But I would think if it did not have at least a duckbill valve, then bar oil pour out of that vent hole when the tank is filled completely up and/or when the saw is side cutting........ The parts list shows it should have both???

https://shop.husqvarna.com/us/EPCPr...rrideCategory=&storeId=11251&epcProduct=440+E

 

[TRPalmatier]

Guys... it all has to do with the oil tank vent being clogged, as evidenced by the fact when he states, "when the oil tank filler cap is removed the oil flows freely". If the oil tank air vent is plugged, a vacuum is created and oil will not flow. Even if you replaced all the oil pumping parts. On the 440 that vent is not in an obvious spot that is easily seen. Get that vent port cleaned, so a vacuum is not created on the tank and your issue is gone. Like most of you, I too learned this the hard / costly way.