No Gauges…No Problem

The best way to determine if an oil filter needs cleaning will always be the differential pressure across it. But what if the gauges are non operational or even missing? We can certainly try Infra Red but that can be an issue if the operating temperature is close to ambient or we have emissivity issues. Another way is to use ultrasound. Take the contact probe and place it on the head of the filter close to the bypass valve. When the valve is open you will hear fluid passing. Here is a quick video from our B.I.T.S. Library that shows how.

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