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Old 06-13-2019, 04:29 PM   #1
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Pilot 34 Racor element

Have Yanmar 6 cyl 6LYA STP, anyone know which micron rating I should be using for the Racor?

It has 2 micron now, seems pretty fine, asking to plug?


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Old 06-13-2019, 04:38 PM   #2
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I run a 10 micron in the Racor 2 micron on engine.
Some run 2 on Racor as it's easier to change.

2008 MS 34 HT Trawler
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Old 06-13-2019, 04:48 PM   #3
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There is quite a debate on this point. Technically you will get better life out of both the primary Racor and the secondary Yanmar filter by going with 10 micron on the primary and 2 on the secondary.

But as Bacchus notes above, it is pretty easy to change the Racor filter so many just go with 2 microns on both.

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