Diesel RVs: Fwd: [diesel_mercedes] Doing some R&D need your help

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Begin forwarded message:

From: Barry Edwards <duckn8r@me.com>
Date: April 6, 2011 8:50:07 PM EDT
To: Tracey Edwards <Tracey.Edwards@stryker.com>
Subject: Re: [diesel_mercedes] Doing some R&D need your help

Thanks I try.
Hay today I was driving my 1979 123 300D Mercedes down the road the car was running great, I stopped and turned off the car.
After ten minutes started back down the road and at between 50 to 60 miles hour It would get
this detonation sound. It was like this light knocking.
A few months ago I had a fuel leak, from the washer on top the fuel filter under the main bolt and air would get in the line,
I could see little bubbles moving in the clear lines,going from the filter to the fuel injection pump and it knock. The mechanic told me that was a knocking from it being to lean. That's what it sounded like today.
I see bubbles coming out around one of my injectors when it is at an idle.
could the piston be sucking air in at that speed causing that knock?

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On Apr 6, 2011, at 4:51 PM, Blaise Colasante <supervee03@yahoo.com> wrote:

Barry,

Have you checked fuel filters? My 300D had a similar problem but not so pronounced. I found that I had fungus in my fuel tank that was clogging the fuel filter. The clear filter was looking black and the sending unit in the tank was covered with black slime. Let us know if you discover the same problem. There are corrective measures short of dropping the fuel tank.

Blaise

From: Barry Edwards <duckn8r@me.com>
To: "diesel_mercedes@yahoogroups.com" <diesel_mercedes@yahoogroups.com>
Sent: Tue, April 5, 2011 12:49:34 PM
Subject: Re: [diesel_mercedes] Doing some R&D need your help

Now I don't know what to believe, I'm just trying to make this car drive, right now it slow down to 10 mile an hour driving up a hill if I don't get it up to 50 before I go up it.
I'm just hoping to have a engine that will get forty miles a gallon or better but the motor should have a little better pick up I not trying to make a race car, what do you guy think of that?thanks again for your response, Barry

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