Fuel/Air Seps


twarble

twarble

Member
Hey guys,
I was reading last months Power and Motoryacht, and they had a great article on Walker Marine Airseps, and how great they apparently are for lowering smoke, reducing smell, increasing mpg, etc. I was starting to think about them when I saw these guys at the Bay Bridge boat show this past weekend...

www.fueltecind.com

Supposed to be slightly different than the Walker Fuelsep as it works using magnets to break down the particles in there. So, it doesn't require any maintenance, or replacement of parts like the Walker.

Anybody heard of them? What about the Walker products...anyone using either the Airsep, or the Fuelsep products? I noticed that I only have a foam air filter on mine, so I could see clean air being beneficial to the engines. :D

I'm in an '04 40PC with the Yanmar 440hp 6LY2A-STP's.

Thanks in advance!
todd
 
Not to steal your posting, but how has your experience with diesels been with the Yanmars ?? How many hours do you put on each season, major issues with the engines, etc ?

Thanks
 
twarble

Before I made any changes to those sweet Yanmars I would talk to the guys at Mack Boring and get their opinion. Personally I don't think Air Seps are necessary. I am running the same motors. I have almost 600 hours on them. I did put in a new ZF transmission last winter. Otherwise these motors are awesome.
 
FormulaFanMN,
Let me first say that my experience so far has been great! I just got this boat in June of last year, and from July to December we put about 160 hours on it, and that's including about a 6 week layup for some work. This is more engine time than I had done in 3 years on my previous boat. ;) I can run from Woodbridge, VA to Annapolis, MD at 28mph...it takes about 5.5 hours, and I still have about 1/4 tank of fuel in each tank when I get there. ;D My dock neighbors are seriously jealous.

I love the underwater exhaust. Smoke and smell are at a minimum. The sound is nicely muffled too, but not so much that I don't get to hear that beautiful sound. :)

This is my first set of diesels, but so far nothing but good things to say about this setup.

thanks,
todd
 
gwazoo27 said:
twarble

Before I made any changes to those sweet Yanmars I would talk to the guys at Mack Boring and get their opinion. Personally I don't think Air Seps are necessary. I am running the same motors. I have almost 600 hours on them. I did put in a new ZF transmission last winter. Otherwise these motors are awesome.
Click to expand...

Gwazoo,
Good point. I'm looking at both the fuel and air seps. It's probably a good idea to run both past the folks at Mack Boring. I had read on the Walker site that they are typically installed by Thunderbird, so I assumed that they're probably in the newer models. Would be nice to know if any of the other guys are actually running either the Fuelseps, or Airseps.

Main reason that I started looking into this after reading that article is that I have noticed oil on the air filter. There's a hose that runs from the top of the engine to the top of the air filter, and I assume this mess is due to the blow back issue described. Seems to me that used oil going into the air intake can't be the best of things. :) Oh, and while reading the article I saw that they also sell dress up kits for just about all engines. A little more stainless in the engine compartment can't be a bad thing can it? ;)

thanks,
todd
 
it definitely looks like the same thing. walker is a bit known for having a unique solution in that the air filter is coated in some sort of proprietary oil which makes it more efficient. also, they allow you to clean the filter as opposed to replacing it all the time.
 
Todd
Formula did not use airseps on any Yanmars. I believe that they are on Volvo's and Cummins. I just keep rotating the air filter. Once it s all covered with oil I wash it. Remember that if you have a K&N air filter you have to put oil on it. The Walkers do look just like a K&N. The oil on the filter does help to stop dust and salt air from passing through. I don't know if you realize that a diesel motor moves a tremendous amount of air, much more than a gas motor.
Joe
 
interesting tidbit about which engines they put the Airsep on. I wonder why? I talked to the Mack Boring guys today, and they said that the Airsep is an option on the Yanmars. They also said that they definitely work, but that they can be a tight fit in some installations. I don't think that would be the case on my boat. Interesting part was when he said that there's also no real compelling reason to do it unless you're suffering from lots of oil blowback, or sheen on the water, etc. He said it will definitely help the economy a bit too, but that he had a hard time telling me that I need them. Anyways, I'm waiting to hear back from Bay Shore marine in Annapolis. Going to pick their brain as well. I did know what the diesels need much more air to operate effectively, that's why I was thinking that a good, clean air filter would be a good fit.

I'll let you guys know what I find out.
todd
 
Does anyone know if Formula modifies the engine compartment ventilation IF the boat will be equipped with diesels ?? Mentioned before, the diesel require more CFM of air than a gasser, so wondering if more air entry is needed ??
 
You must log in or register to reply here.
Back
Top