Poulan 245a question...

[JoseJimenez]

Hello folks,

I am hoping someone here might give me a little help please.

I have a vintage Poulan 245a chainsaw that belonged to my recently deceased cousin. I found it in his shop and thanks to hurricane Helene (which just had a field day in the Upstate of South Carolina, where I live) I have many trees to clean up. The 245 works perfect and thankfully will handle the bigger trees I have. The one problem I found is that the gas cap leaks a LOT. There is a small orifice - I presume a breather.

Does anyone know of a compatible gas cap I can order that I can use on this chainsaw? Any help would be highly appreciated...

 

[cbfarmall]

Check this out. All you need to buy is a cheap duckbill valve and you can repair that cap. Look in yours for melted gooey rubber and an external lock washer looking thing. Pry that out, install a new duckbill and press the washer in with an ink pen body. The cap pictured looks a bit different but the vent is the same.

Post in thread 'Poulan deluxe super 25 fuel cap question' https://www.arboristsite.com/threads/poulan-deluxe-super-25-fuel-cap-question.365597/post-7925018

 

[JoseJimenez]

Thank you. I've ordered a bag of 12 from eBay - i'll have more info when I get this figured out. Thanks!

 

[cbfarmall]

Good luck. Did you see the star washer still in place in your cap?

 

[JoseJimenez]

Thank you @cbfarmall.

I did see a star washer still lodged in the hole. But I am having a hell of a time finding a) what the proper name is for that washer and b) what size to use. I would like to know because if I bugger up the one I have, I want to know what to replace it with.

And I am talking about the star washer as shown in this picture:

 

[cbfarmall]

They are pretty tough, I doubt you'll mess it up. Use an o-ring pick but don't lose it.

It looks like an external star lock washer but is made out of spring steel or something.

 

[heimannm]

https://www.mcmaster.com/products/l...pe~internal/push-on-internal-retaining-rings/

 

[JoseJimenez]

Thank you all! I'll document once I get this done.

 

[hotshot]

Thank you all! I'll document once I get this done.

Wear gloves when you clean that cap hole with carb carb cleaner, the black goo spreads worse than silver anti-seize!

 

[JoseJimenez]

"silver anti-seize" - LOL!!! I agree with that, that stuff goes everywhere...

 

[JoseJimenez]

Here is the repaired gas cap. You can find the duckbill checkvalves very cheap and plentiful on eBay. I bought a baggie full for a few bucks.
Second photo has a closeup of the retainer in place - I used a small deep socket and tapped it in place. Doesn't take much, and it will seat and keep the little green valve in place.
Replaced the o-ring with a new one while I was at it. Cap works like new.

 

[cbfarmall]

Nice. You may find other uses for those duckbills. They fit over 1/8 tubing. Lots of old saws have defective vents that parts are long since obsolete. These duckbills can be used to make substitutes. Also, some oiler check valves.