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bradt
RO# 31225
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 Posted - May 23 2012 : 13:43:19
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Took the boat out for first time this season. Once back at dock, noticed yellowing of both sides of the swim platform and transom, obvious from diesel exhaust. I know there is an additive that will "make this go away" but can't remember brand name. Anyone know what to use?
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SlapShot
Carver 444 CPMY
Annapolis, MD |
Homeport: md
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Flatsflyer
RO# 16388
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Posted - May 23 2012 : 18:02:50
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First check your fuel filters. I use Marvel Mystery Oil as well as Bio Bore.
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| John Coffey |
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Homeport: Palm Coast, Fl.
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saltysam
RO# 26
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Posted - May 23 2012 : 21:04:03
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That good ole Marvel sure is exactly that. In another life I used it as part of our initial maintenance service of expensive/exotic cars imported from Europe. Always a good choice!
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Cheers!
Bill |
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Homeport: New River, Ft Lauderdale
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Capt. Bill1
RO# 2017
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Posted - May 23 2012 : 23:08:56
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I hate to say it, but there is no evidence that Marvel Mystery oil does anything for diesel fuel. At least in the small quantities most people add it in.
In fact here is a study that shows MM is not so great to add to diesel: http://www.natbiogroup.com/docs/education/lubricity%20additive%20study%20results.pdf
And I don't see how adding and type of oil to fuel could help with eliminating soot.
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The two most common elements on Earth are oxygen and stupidity.
Great, now take it to NBR. |
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Homeport: Sarasota/Ft. Lauderdale
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pdecat
RO# 842
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Posted - May 24 2012 : 07:24:52
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if you have more soot than past on both sides you are more loaded than past, or have air restriction. Chect to see if you can exceed rated wot. Report back
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Bruce
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Homeport: Gulf Coast FL
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Ghost
RO# 689
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Posted - May 24 2012 : 08:38:48
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Stanadyne will increase cetane of the fuel and can help to reduce black soothing. I agree with Bruce though, fixes don't really come in cans. I'd also check out the fuel itself, especially if you believe in condensation and have a large load of old fuel sitting around with asphaltines coming out solution looking like algae.
A diesel will soot more if it is under greater load or over fueled, well same thing actually. Fuel quality is a component of that equation.
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| What part of GALE WARNING did you not understand? |
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Homeport: Everett Wa
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Capt. Bill1
RO# 2017
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Posted - May 24 2012 : 10:54:22
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Is it possible the yellowing is not from soot but is actually a tannic acid stain from the water you are running in? Is the water tea colored? Just a thought.
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The two most common elements on Earth are oxygen and stupidity.
Great, now take it to NBR. |
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Homeport: Sarasota/Ft. Lauderdale
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bradt
RO# 31225
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Posted - May 24 2012 : 13:28:15
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New fuel filters, new air filters, clean bottom, was able to get at WOT. It is definitely coming from the exhaust as it is only discolored in those areas on both sides. Color again was a light yellow, I have had black soot before, added an additive but couldn't remember what it was as it was a few years back. I am thinking quality of fuel, so assume an additive would help.
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SlapShot
Carver 444 CPMY
Annapolis, MD |
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Homeport: md
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pdecat
RO# 842
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Posted - May 24 2012 : 15:17:44
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yellow is wierd. IMO additive wont do anything. both sides pretty much rule out coolant or such, rust? Just clean it off and see if it comes back.
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Bruce
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Edited by - pdecat on May 24 2012 15:28:20 |
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Homeport: Gulf Coast FL
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Dusty Rhoads
RO# 10868
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Posted - May 24 2012 : 16:04:55
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We get something similar, but darker. I got the claning kit for our Air-seps, and it improved. I also used a product from Power Source, but not sure it helped. I clean eith scrubbing bubbles to remove the stain.
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| Dusty "Moon River" |
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Homeport: Annapolis, MD
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jmeirhofer
RO# 30972
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Posted - May 25 2012 : 06:01:10
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I think it is the thick algae in the Baltimore area right now. I have it this year as well. Both sides. Didn't have it after my trip up from Virginia. Noticed it a little the first time out after that a gave it little thought. Noticed it was worth the last time out. The algae bloom is so thick it is killing fish and crabs. And the color washing up and trying on the boat is the same.
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John
1997 Trojan 440 Express
"Son, I've got a very low bull$*%t tolerance" -- Pancho Carter
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Homeport: Baltimore, MD
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pdecat
RO# 842
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Posted - May 25 2012 : 06:22:49
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what Dusty and John say makes more sense than engine problems
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Bruce
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Homeport: Gulf Coast FL
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| BoaterEd |
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Diesel Soot
