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Old 01-07-2015, 11:13   #31
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Re: Diesel Fuel Causing Soot?

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I couldn't find the dog either? Diesels smoke! Have you checked the air intake filters, running rich will do it. Sorry it that sounds sophomoric but often the obvious is forgotten.
I think the clue was: IN YOUR BIO.......
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Old 01-07-2015, 11:27   #32
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Re: Diesel Fuel Causing Soot?

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I couldn't find the dog either? Diesels smoke! Have you checked the air intake filters, running rich will do it. Sorry it that sounds sophomoric but often the obvious is forgotten.
The first thing I checked last week. The Westerbeke filter looks new, and I'll check the Yanmar filter in the morning. Thanks for the suggestion.
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Old 01-07-2015, 11:34   #33
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Re: Diesel Fuel Causing Soot?

This discussion caused me to look for diesel fuel testing kits which I have been meaning to do for some time. I found a few tests you can do on site, but the other tests I think would be important, have to be sent to a lab.

In this case, it would seem that knowing Cetane and sulfur levels would be important, but those tests require a lab which is not really helpful. There are tests of acids(age), bacteria and water that can be done locally.

Later,
Dan
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Old 01-07-2015, 11:39   #34
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Re: Diesel Fuel Causing Soot?

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Is it possible that you are smoking no more than before but your beautiful and labor intensive wax job is catching more of the exhaust soot?


S/V B'Shert
Very good point. I was going to ask the same one before I found this.

We've owned our boat for 17 years. Last month we hauled out and my son & I waxed the hull for the first time since we've owned the boat (it was in great shape for a looong time).

We now have a great big black blob on the port aft transom.

PITA.
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Old 01-07-2015, 11:43   #35
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Re: Diesel Fuel Causing Soot?

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Pulled the pipe out of his mouth and coughed as I repeated what you wrote here. After he spat on the floor and replaced the pipe he said.....

'So whats the problem? Fuels crap these days, the engine is starting up and running with good compression and it puffs out a bit o' sooty stuff" Id say he 'as a good 'un." and walked off.
Yup, lotsa of what we've all been sayin' for years, only there's no PIPE emoticon!!! eace:
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Old 01-07-2015, 11:55   #36
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Re: Diesel Fuel Causing Soot?

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I think the clue was: IN YOUR BIO.......
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Old 01-07-2015, 13:32   #37
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Re: Diesel Fuel Causing Soot?

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He means, in my bio. Kenomac' bio. I put the picture of Pepe the boatyard watch pug in place of my own picture.
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Old 01-07-2015, 14:02   #38
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Re: Diesel Fuel Causing Soot?

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He means, in my bio. Kenomac' bio. I put the picture of Pepe the boatyard watch pug in place of my own picture.
A face only an owner could love. Pepe probably snorts like our Japanese Chin.
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Old 01-07-2015, 14:04   #39
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Re: Diesel Fuel Causing Soot?

suggest check exhaust mixing elbow, had a friend that his coked up and the exhaust looked like unburned fuel.
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Old 01-07-2015, 14:07   #40
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Re: Diesel Fuel Causing Soot?

It was 80 degrees that day, and Pepe's human had to carry him over for the photo op because he was exhausted.

Guess his age? In human years.
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Old 01-07-2015, 14:27   #41
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Re: Diesel Fuel Causing Soot?

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It was 80 degrees that day, and Pepe's human had to carry him over for the photo op because he was exhausted.

Guess his age? In human years.
77 years old
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Old 01-07-2015, 15:13   #42
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Re: Diesel Fuel Causing Soot?

If both engines showed increased soot simultaneously it is most likely the fuel as it would be hard to believe other causes (injectors faulty,injection pump faulty, overloading,clogged air cleaner or restricted air supply) would happen at the same time. Just a guess as have no experience with bio diesel.Good luck with solving the problem
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Old 01-07-2015, 15:24   #43
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Re: Diesel Fuel Causing Soot?

I'm thinking now the most likely cause might be the two coats of marine paste wax I applied four weeks ago, is hanging onto the heated soot.
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Old 01-07-2015, 15:27   #44
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Re: Diesel Fuel Causing Soot?

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77 years old
He needs AC!
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Old 01-07-2015, 15:30   #45
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Re: Diesel Fuel Causing Soot?

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He needs AC!
Pepe is four years young. He's a little out of shape.
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