carb fuel leak Ariens 8526 - Snowblower Forum : Snow Blower Forums
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post #1 of 5 Old 12-16-2018, 01:40 PM Thread Starter
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carb fuel leak Ariens 8526

Hi folks - Iím new to the forum. I have a continuous carb fuel leak from my Ariens 8526 when not primed, it leaks when the fuel line value is turned on. Itís a small steady stream coming from the same pinnhole as if it was over primed

I have a pic if I could figure out how to upload it here

sorry if this topic has been covered before, Iím trying to learn how to do the searches

Any help would be greatly appreciated

Last edited by SWRufus; 12-16-2018 at 01:44 PM.
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post #2 of 5 Old 12-16-2018, 02:40 PM
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Hopefully you can post a pic. Worst-case, you could upload it to, for instance, and post a link to that.

It sounds like it's overflowing the carb bowl. Perhaps the carburetor's needle valve, controlled by the float, may be leaking, and is not closing off the fuel flow. If that's the case, the rubber seat for the needle valve might need to be replaced. Or the needle may need to be cleaned, or perhaps the float has leaked, and allowed gas into it, which means the float sits too low, and does not close the needle valve properly.

Be careful of running the engine in this condition. Check your oil level. Make sure the oil doesn't smell like gas, and that the oil level hasn't risen. If the carb is overflowing, it can leak gas into the cylinder, which will get down into the crankcase. Oil with gas in it doesn't lubricate as well, and can cause engine damage. If the oil smells like gas, you can change it, and keep using the fuel shutoff. At the end of a run, you can close the fuel shutoff, and run the engine until it dies, so there is no fuel left in the carb.

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post #3 of 5 Old 12-16-2018, 02:49 PM
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. . . . to SBF SWRufus

If the picture is on your computer the easy way is right below the "Quick Reply" box. Hit the "Go Advanced" blue radio button and with the new screen scroll down and it will have a button on the left for "Attachements". Once you click on that it's just a matter of navigating to your C drive or whatever drive the photo is on and selecting the photo and then attaching it.

I don't know how to do it from a hosting site, sorry.
More info - - >


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Last edited by Kiss4aFrog; 12-16-2018 at 02:51 PM.
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post #4 of 5 Old 12-17-2018, 07:34 AM Thread Starter
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Wow - thanks for the help & advice. Here is a pic.

I checked and the oil level has remained at the same level.

Thanks again - much appreciated!

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post #5 of 5 Old 12-17-2018, 09:39 AM
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being it's a old carb i would replace it, doing a fast search the number is likely Tecumseh 640349 or a Oregon 50659
if you give amazon a fast look over it maybe found for under 20 bucks.

given the age and how bad our gas is today, i would not think twice about a new carb simply for peace of mind

good luck with the project
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