Agreeing with JM and John's points, you don't know what you don't know. The sediment bowls will tell the story right quickly. Running one filter per motor allows a change on the fly, and carrying extra filters allows multiple repeats if the fuel starts looking bad. You also have the ability to determine if poor quality fuel is isolated in a particular tank or uniform throughout. I had some scummy fuel in Aslan's forward tank, while the main tank has never given a hint of junk. As posted, the Detroits turnover so much fuel that they might as well have advertised built-in fuel polishing at no extra charge.
But then again confidence can be a fragile commodity, and polishing clean fuel never hurt anything other than the wallet.
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Re: 1977 58 Hatteras LRC fuel polishing
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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07-29-2020 01:08 PM #12Senior Member
- Join Date
- Apr 2008
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- 2,003
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Re: 1977 58 Hatteras LRC fuel polishing
Posted my real world experience with diesel fuel disaster as insight to what can happen and did happen to us.
Fortunately we had enough filters, knowledge and bodies on board to make the 50 miles that we did that day.
We were only getting 5-7 miles between changes doing hull speed at the most, and that was with the 12v71n engines.
Scott is spot on regarding the use of a biocide not until things have cleaned up.
After we got the boat home from the original trip we puled our new inspection plates and vacuumed the bottom of the tanks sucking out more crud.
Then we started with the biocide the rest of that summer, my memory is it took quite a few canyon trips before everything cleaned up, still clean 35 years later.CRICKET
1966 HAT50C101
Purchased 1985 12v71Ns
Repowered 1989 with 8v92TI
Repowered 2001 with 3406E
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08-11-2020 07:56 PM #14Registered Member
- Join Date
- Mar 2018
- Posts
- 6
Re: 1977 58 Hatteras LRC fuel polishing
We offer Fuel Polishing if anyone needs that service in the state of Florida. Kraken Marine Service, you can find us on Facebook!
Onboard fuel polishing systems aren't large enough to have the GPM pressures to mix the fuel well enough to stay on top of the Biofilm activities (with the exception of the one posted in this Forum, THAT ladies and Gentlemen is a thing of BEAUTY!)
We can come clean your tank and fuel in an afternoon, or morning . . depending on what time you get up!
Look us up!