Air filter restriction value - Printable Version

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+--- Thread: Air filter restriction value (/showthread.php?tid=8296)

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Air filter restriction value - [email protected] - 12-18-2024

What is the typical value on the engine air filter pressure gage after new filter is installed. Cleaned mine , shows 11 inches H2O.

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RE: Air filter restriction value - Richard - 12-18-2024

I don’t have a filter minder.

As a ChemEng, 11 inches of water is a LOT.

You said cleaned the filter. Do you have something other than the standard Ecolite paper filter?

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RE: Air filter restriction value - [email protected] - 12-18-2024

I think it's the standard. I used compress air and a huge amount of dirt/dust came off. Before it was near the red which I think is 22 inches. I thought it would have come down to 4 or so.

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RE: Air filter restriction value - Richard - 12-18-2024

My bad, 11 inch of water is about 1 psi. It’s been a day or two, or 40 years since I did that conversion.

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RE: Air filter restriction value - cwl1979 - 12-18-2024

From a commercial standpoint, if the filter gauge is above 10 its time for new ones. It's amazing how much it will liven an engine up when it can breathe freely! I know i need a new one as I've got a giant wasp nest built into it currently. Another springtime issue!

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