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Discussion Starter · #1 ·
Finishing up my first rebuild and only have a leaky carb left to fix. I replaced needle/seat but it still leaks. Took it off the mower and tested on the bench with a gas tank hooked up, and it didnt leak so the needle and seat are seemingly ok. all i can think of is that maybe the float gets intermittently hung up or something once its on the mower and has been activated a few times. there were a couple of times where i would turn it upside down without the bowl on, blow air through the gas line, and the float would catch and not fully seat the needle... but it was very difficult to replicate so i dont know if thats what is going on when its on the mower. i would prefer to have it fully functional, but i installed a cut off valve on the fuel line so it's not a huge deal now.

anyway my main question is, is there a cheaper alternative to the gasket that goes on the bowl screw? i've went through 2 in the process of testing the carb, and they are $5 for a tiny little rubber gasket. anything i could pick up cheaper at a hardware store that would do the trick? just curious... thx for any ideas about the gasket or even the carb leak.

this is the carb (mine is specifically a walbro and has 38 stamped on it)

Carb

this is the gasket brigg part# 281164 or 692255

Gasket
 

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As mentioned, you can pick up a sheet or roll of gasket material and cut out your own. You can also purchase it at auto parts stores.
 

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:ditto: That's what I do when I'm too cheap to buy a new gasket, or I can't find one. It works just as good as the OEM part.
 

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Discussion Starter · #5 ·
hey that sounds like it's just what i need, especially since i have several more carbs im planning on taking apart. thanks!
 

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Good deal!
It's definitely a handy thing to have in your toolbox. :ThumbUp:
 

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Good deal!
It's definitely a handy thing to have in your toolbox. :ThumbUp:
Along with an Exacto knife/blades, and one or two sets of hole punches that you can get at Harbor Freight very inexpensively.

Use a piece of wood underneath the punches. My dad bought me a roll of cork and a roll of fiber gasket-making material when I was a kid, and I used those for years to make my own gaskets for my lawn mower engines.

You would be amazed at how much less oil comes out of an old Briggs when you have a gasket on the plastic oil filler plug!
 
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