........................Originally Posted by MyGU8
OK.. here's the sketch explaining the proposed method installing a second filter.
How can this be practically configured?
1. First I would suggest to fit a (diesel) vacuum gauge after the OEM filter and monitor values, preferably before the recommended filter replacement interval.
2. Measure the vacuum just after the filter change - this will give us two things
- a compartive headloss across the filter on a clogged filter and
- the vacuum level with a clean filter
3. If the head difference is more than 0.3bar (according to Bosch) you have some serious issues with the fuel you are buying. You must consider changing the filter more often.
4. If the head difference is less than 0.3bar you can proceed with the second filter installation.
5. Measure the head just after second filter installation and make sure it is well below the 0.3bar compare to the measurement in 2 (OEM clean filter only measurement).
6. Continue monitoring the vacuum gauge and when the head reduce to more than 0.2 bar (for safety) from the clean OEM filter only measurement (2 above) then time to change the filter(s).
Note that the measurements are best taken at maximum safe load
Usual disclaimer: these are based on my findings on the internet and does not mean accurate. I take no responsibility for any damage in any form caused by these information. I put this here for the sole purpose of my own benefit and future reference.
USE AT YOUR OWN RISK
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