noisy fuel pump

ric · **Posted:** Thu Apr 12, 2012 7:30 am

In those tests, did they retune the engines to run E10/E15? Or did they run engines tuned on E0 and just dump E15 in them? Of course they will burn valves. If you read above, without the correct tune the engines will run hot (lean). That's the stupidest test in the whole world. Re-jet the carb and advance the ignition, you can run E15 until you grow too old to steer the boat.

E85 is quite popular in the performance car scene here in Orlando. Cheap race gas. No reported issues with any car that is converted to run E85. The conversion process includes: Additional fuel pumps, bigger fuel injectors, a different ECU tune. It takes roughly 30% more E85 to correctly run an engine compared to E0. A standard street car (non flex) does not have the programming, big enough fuel pump, or big enough injectors to run it.

Most boats have the same holley carburetor just like all cars made from 1960's to 1980's. They are not 'set and forget'. They do not change. Sometimes they require adjustment. If you run a different fuel then what it was adjusted for, it needs to be adjusted for the new fuel. It's that simple. There's no if's and's or but's about it. If your boat was designed for E0 and you run E10 now.. go log onto Jegs or Summit Racing, buy a jet kit, start reading the plugs and usually it's 1-2 sizes bigger main jet for E10 so it doesn't run hot or burn anything. If you want to get rid of the stumble.. try advancing the ignition a tad since E10 burns slower compared to E0.

LouC · **Posted:** Thu Apr 12, 2012 9:26 am

Ric you are forgetting about the corrosive nature of ethanol, that is the major reason why the manufacturers limited their products to 10%. In any warrantee statement you will see, for cars, trucks, boats and all small engines for yard equipment, it's always no more than 10%. Because they know that more than that causes carb bodies to corrode and the particles (aluminum flecks of corrosion) then clogs jets. The same thing is happening with Yamaha outboards, go over to the Hull Truth website and do a search for VST the vapor separating tanks get corroded and that clogs the injectors. It's ethanol related corrosion.
Yes the engines CAN run on it, but the long term effects are not good. How much are you willing to pay to repair fuel system corrosion? The VST problem on the Yamaha outboards appears to be more or less chronic issue.

ric · **Posted:** Thu Apr 12, 2012 10:03 am

I've run 100% Methanol in small engines for 5+ years. Zero damage to the aluminum. You might see fuel line hardening in percentages at E85 levels, but E10? Nothing happens.

Propaganda from oil companies is what you're reading.

LouC · **Posted:** Thu Apr 12, 2012 11:39 am

ric it's not from oil companies, its all over the net as a problem, in Yamaha and other outboards, the VST tanks clog and the engines don't run. High tech high priced OBs that do not run....

ric · **Posted:** Thu Apr 12, 2012 12:48 pm

LouC wrote:

ric it's not from oil companies, its all over the net as a problem, in Yamaha and other outboards, the VST tanks clog and the engines don't run. High tech high priced OBs that do not run....

Then that's a design flaw that the manufacturer should fix.

LouC · **Posted:** Thu Apr 12, 2012 5:54 pm

Agreed. but it would not exist, if this use of ethanol was a choice and not forced on us. That's our major problem in this country today, things that do not really make sense, are forced on the majority by a small minority. That is not a democratic process. None of us voted to have ethanol. Once the EPA decides to do something, it is very very difficult to stop them. Just to give you an example, how did ethanol come to be mandated. Do you know? Well here's how it happened. EPA decides that the super clean cars we drive now, are not quite good enough. So the idea is to add an oxygenate to the fuel to make it burn more completely. Logical enough. So the one they picked the first time, is MTBE. It is a good oxygenate and does not cause the operational problems that ethanol does, but it is carcinogenic and once it gets into the water system very difficult to remove. They knew this, and still forced it on us. Not democratic. Now ground water is getting poisoned and the environment that the supposed lower pollution was going to benefit, it getting negatively affected. Ironically, California, land of the most strict enviro regs, had the first signs of tainted ground water because of the EPA mandated MTBE.
The issues with ethanol were also well known, because it's been sold as gasohol (to help the economy in the midwest). Still it was forced on us. No one listens to engineers and scientists, people who know, it's who is politically connected and powerful that gets what they want. That is why we get bad results and it is NOT democratic.

The only reason why I bother posting this stuff is to counter the BS I see being thrown around that I cannot tolerate. Ignorance is not bliss.....

ric · **Posted:** Thu Apr 12, 2012 7:23 pm

well the fuel is forced on us and we have known about it for years. Every new engine sold shpuld be 100% ready to use it.

298VISTA2000 · **Posted:** Fri Apr 13, 2012 6:38 am

ric wrote:

well the fuel is forced on us and we have known about it for years. Every new engine sold shpuld be 100% ready to use it.

No, everyone should be ready to vote the tree-hugging, towel-headed loving socialist government officials we have on the payroll out of office. This country has got to be the laughing stock of the world. Here we are sitting one of the largest oil reserves on earth and yet we are afraid to use it. What a joke.

LouC · **Posted:** Fri Apr 13, 2012 8:45 am

ric wrote:

well the fuel is forced on us and we have known about it for years. Every new engine sold shpuld be 100% ready to use it.

Again you are missing points that have been made by others, that the way ethanol is blended results in it not always being only 10%. Yes they run on 10%, but when that %age rises then there are big problems. Because the oil companies are smart enough not to send it though their own pipelines (they know it will cause corrosion) so it gets mixed in the tanker trucks and mistakes are made. As long as we have this system, there will be problems, unless the manufacturers design for a higher level of ethanol, which they could do, but won't because it costs them money they won't get back.

Wet Doggg · **Joined:** Fri May 19, 2006 11:15 am **Posts:** 682

ric wrote:

Your tech is a retard.

Your use of this word is appalling and disrespectful. You may consider yourself smart but that is a long way from intelligent. There are many great people that have mild to severe cases of retardation. Many are very, very intelligent. This world is hard enough to survive in without bigots like yourself. Grow up.

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