Dissolved Air in Fuel..... Maybe really not an issue!

[56Nomad]

With just about 9500 members on this forum, doesn't someone have
a connection with a diesel mechanical engineer or Bosch engineer who
can address this issue of dissolved air within the fuel. Do any of the
major diesel manufactures, CAT, Cummins, Power Stroke or Isuzu
have systems to capture this normally occurring air in the fuel before
combustion? I can't find any information doing searches.........

The only air removal system I found on through a search was the
The Fuel Preporator

[HD-Nate]

Brad from Preporator just called me a few minutes ago while I was a lunch. He will be calling me back here in about 15-20 minutes. I will ask him some of your questions.

Nathan

[56Nomad]

Nathan,

Keep in mind that he has something to sell. Is Brad a
sales person or a mechanical engineer? Ask him for any credible
papers on this topic. Thanks

[ 04-29-2003: Message edited by: 56Nomad ]</p>

[Kennedy]

Well, I'll go so far as to say that it cannot be GOOD.

The way I see it is that small bubbles are joining to make big bubbles. These big bubbles are blasted into smaller bubbles by the feed pump in the injection pump. Now this may not be a terrible thing, but it cannot be a good thing...

[56Nomad]

John,

You are certainly are the most respected mechanic on this forum
and indeed your statement may be true.

However, I would like to see or read some legitimate engineering
study to validate what may or may not be a problem with our fuel
systems. If this is a major problem, there should be a consensus
of professional engineering opinion and data pointing to that fact.

As evidenced, it is not hard to remove air from the fuel........ the point
is, why haven

[oyazi]

Can't say the bubbles in the beverages I favor don't seem to be a problem and there are a lot!

[Lone Eagle]

Some very good points 56Nomad. I also would like to know if everyone is sure they have air or a vacuum when they open the bleed screw. My engine mounted Racor is the highest point in my fuel system. It does not have much of a cavity in the top but none the less it is big enough to catch a little air when not running if there was any to catch. I guess I could add a vertical piece of clear hose to the top of my filter to see what I get then. Later! Lone Eagle

[Kennedy]

As a whole, engineers are like police when asked about motor vehicle (trailers and CDL's specifically) code. If you can get the same answer out of two of them on the same day, you are doing better than I am! :rolleyes:


Ducking and running for cover. :D

BTW, I HAVE found some engineers that I respect, trust, etc. Diesel fuel systems are much like hydraulic systems. Air is NOT desireable, pure and simple...