specs on the motorcraft fl820s

[boxcartommie22]

does anyone have the specs on the fl820s oil filter for my 4.6 and 5.4 ford engines? etc. flow rates bypass valve psi settings and micron ratings?

 

[Schultz]

Check out the study on the link below. There is a spreadsheet that has some testing that included micron rating and some relative flow data.

http://www.oilfilterstudy.com

The testing had the motorcraft filter as a 30-70µm filter. Which was in the lower end of the pack compared to other filters. Unfortunately I didn't have an 820s at the time so it wasn't tested, I had a 400s, but the its likely the same media is used in both motorcraft filters. So if you know the number and size of the pleats you can caclulate the flow and compare it to others on spreadsheet.

 

[Filter guy]

Schultz..

You might be interested to know that filter media when pleated has a plus/minus of 4 pleats.

For those not familiar with the pleating process:
A large roll of media is brought up to a pleating machine. The end is fed into the machine. It then pleats the flat paper. As it continues through the machine, a counter counts the pleats. As the media leaves the machine, when the specific count of pleats is reached an ink dye is sprayed onto the pleats. From there the media goes into an oven to precure the resins in the paper. Because the spray overlaps a number of pleats ( due to the feed speed of the paper going through the machine) the production employee at the next station who "cuts" the pleats with a knife can slit the paper at the plus/minus level. Filters will then not have equal number of pleats from part number to part number.

From there the media is seemed and the rest of the production process goes on.

You can see the ink dye easier on cartridge filters or some air filters.