T&T: 2 10 30 Micron Filters??

[Phil de l'Etoile]

Thanks for the opening Jeffery:

Last week when I had a Cummins mechanic on board trying to solve several
problems, he was quite stern about the fact that I shouldn't be using 2 micron
filters.

My response was "please tell me why".  "Tell me somethig other than because
the manufacturer says so".

His reply was that the fuel lift pump doesn't handle the increased resistance
well.   The lift pump pushes much, much, better than it pulls, and it is
pulling on the primaries and pushing on the secondaries.

We never did discuss the possibility of moving the lift pump to in front of
the primaries, but he did say that because my engine was so small (150 hp),
the pump could probably handy 10 microns, although 30 was the correct number.

Now this may have come up in previous discussions here, but it was the first
time that I recall hearing it.   Maybe I should say it was the first time it
registered.

Phil de l'Etoile
West Sacramento, CA


-----Original Message-----
From: Jeffrey Siegel <jeff at activecaptain.com>
Sent: Friday, December 28, 2007 18:54
To: 'Gregory Han' <hangreg at gmail.com>;
trawlers-and-trawlering at lists.samurai.com
Subject: Re: T&T: Anchors- Anchoring

> I guess its a sign of winter with everyone stuck ashore
> Time to beat the subject of anchors to death again.
>

It's just a matter of time before a multi-week discussion of 2 micron versus
10 and 30 micron fuel filters comes around again.  It's been a good 10
months since the last one.


==================================
Jeffrey Siegel
M/V aCappella
DeFever 53PH
W1ACA/WDB4350
Castine, Maine