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Fuel Temps? Nitrile O-ring ok?

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Old 02-27-12, 06:45 AM
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Fuel Temps? Nitrile O-ring ok?

Hi guys,

I am in need of a new O-ring to the fuel thermosensor that I just removed.

I have a nitrile O-ring, it is good up to 90C (195F). Is it safe to use it?

What kinda temperatures does the fuel see?
Old 02-27-12, 04:51 PM
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Nitril or better known as buna-N or NBR has good compatibility with gasoline and ethanol mixes. From a temperature range it's good up to 212F. You should be good to go.
Old 02-29-12, 06:16 AM
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Thanks for the input.

Well the seller said 90C and it will start to get dry at 100C (212F). Saw nitrile o-rings in an other store and they claimed the operational range to be -55 °C till +125 °C. (-67 -- 257F).

No matter what is true, I feel confident using my o-ring now.


Still a bit curious at what fuel temps usually are though...
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