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General
Which filter should I use in my DAVCO Fuel Processor?
Check with the engine manufacturer for the recommended micron rating.
Why does the replacement vent cap look different from the one I am replacing?
A torque limiting vent cap is now standard for DAVCO Fuel Processors. A wrench is not needed to remove the vent cap and the torque limiting features prevents...
Is their a wrench to remove the collar?
Why are some filter elements too large in diameter to fit the clear cover?
A standard Filter Element will fit all Fuel Pro 382s and Diesel Pro 243s – The “Plus Size” filter element will only fit the “Plus Size” cover, which is...
How do I know which heater to order as a service part?
Visit this page for WIF information. Click on the thumbnail photos for a larger view of the WIFS. http://www.davco.com/service_parts-WIF.html Visit ...
Why can’t I see the fuel level in the clear cover on a new filter?
It’s not uncommon that the fuel level is at or below the collar when new filter is installed. As contaminants build up in the filter, the fuel level will...
If a truck loses prime after sitting for a few days is the check valve defective?
Not necessarily, generally the check valve is for filter change only. The vacuum in the clear cover holds the fuel in place so odds are that there...
How can you determine if the check valve is operating properly?
With the engine shut off, open the vent cap on top of the clear cover. If the fuel level stays where it is at then the check valve is operating correctly...
How often should I drain the Fuel Pro?
Ask your shop supervisor or fleet manager if there is a policy already in place, if there is no set policy it is recommended that the Fuel Processor be...
Where is the best place to mount the Fuel Processor?
This highly dependent on the equipment the Fuel Processor is being installed on. In general: The Fuel Processor should be mounted so the clear cover...
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