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Author Topic: What's plastic piece in gas tank?  (Read 318 times)

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Offline Tree_Farmer

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What's plastic piece in gas tank?
« on: July 02, 2017, 11:44:03 am »
I have a Craftsman, which is the same as Poulan P3314.

It’s not running well, it does start, works part of the time, but it won’t go full power, dies back.

I dumped out the gas and a little plastic/rubber piece fell out, along with the fuel filter.

Can anyone tell me what this small plastic piece is/does, from inside the gas tank?
If you can tell anything from the picture.

Thank you,
Larry
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Offline Termitebuffet

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Re: What's plastic piece in gas tank?
« Reply #1 on: July 02, 2017, 12:32:48 pm »
That's a duck bill check valve, ie tank vent
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Offline 3000 FPS

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Re: What's plastic piece in gas tank?
« Reply #2 on: July 02, 2017, 02:19:48 pm »
Yep that is the Duck bill valve.    Looks like it may fit into the top of the gas cap.
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Offline Tree_Farmer

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Re: What's plastic piece in gas tank?
« Reply #3 on: July 02, 2017, 11:34:15 pm »
Great, thank you very much!   :)
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Offline Cut4fun .

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Re: What's plastic piece in gas tank?
« Reply #4 on: July 03, 2017, 09:02:49 am »
Thread on one I got in http://chainsawrepair.createaforum.com/poulan/craftsman-358-351701-38cc/msg70935/#msg70935

Yours have the same Craftsman 358.351701  poulan 3816 as the one above? 

If so craftsman 358351701 IPL  http://www.searspartsdirect.com/model-number/358351701/0247/1503220.html
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Offline mowertech

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Re: What's plastic piece in gas tank?
« Reply #5 on: July 05, 2017, 06:54:47 am »
Quote from: Tree_Farmer on July 02, 2017, 11:34:15 pm
Great, thank you very much!   :)
it  belongs in the  fuel  cap 
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