I remember when I first was doing my research I found the BF1217 to be a much higher micron rating than I would liked. It's really suited for a primary fuel filter water separator, not a secondary.

Grainger shows the BF1217 at 40 microns.
https://www.grainger.com/product/BALDWIN-FILTERS-Fuel-Filter-2KZW9?gclid=Cj0KCQjwjMfoBRDDARIsAMUjNZoAO6BXTMqTw-E_2htrpzHR29pBfzOxeoif-sUMp9trZWPBA9xIjucaAsWEEALw_wcB&searchQuery=BF1217&ef_id=Cj0KCQjwjMfoBRDDARIsAMUjNZoAO6BXTMqTw-E_2htrpzHR29pBfzOxeoif-sUMp9trZWPBA9xIjucaAsWEEALw_wcB%3AG%3As&s_kwcid=AL%212966%213%2181085198101%21p%21%21g%21%21bf1217&cm_mmc=PPC%3A+Google+PPC


One another note, over ten years have passed since we did this modification and during this time, Caterpillar revised the micron rating for the 1R-0750 filter. Around 2011, the filter stayed the same, but CAT changed their rating standard. “Advance Efficiency” 1R-0750 became a 5 micron filter. The "Ultra High Efficiency" line of filters has a value lower than 4 microns filter or the so called 2 micron filter. See on page 11 of the CAT .pdf doc published in 2013 attached or a direct
link.. https://caterpillar.scene7.com/is/content/Caterpillar/C10467200

I believe the CAT 306-9199 Ultra High Efficiency is the 1R-0750 equivalent, but haven't tried it.

Attached Files

CATFilterRecPaper.pdf (353.7 KB, 147 views)

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1983 123.133 California
- GreaseCar Veg System