One way is to replace all your hose, making sure you have good connections.  
This would probably eliminate the source of air intake. Also,  you need to get 
rid of that hardware-style vinyl water hose, that has no place in a fuel 
system.  Get some good USCG approved fuel hose.   SAE- J1527 221FR-5 is a good  
bullet-proof hose.

 

 

Bill Coleman

Entrada, Erie, PA

 

 

 

 

 

From: General Gao [mailto:general.z....@gmail.com] 
Sent: Monday, October 05, 2020 10:32 PM
To: Stus-List
Subject: Stus-List Re: Universal diesel

 

Reporting back to my findings for today:

 

This picture shows my primary filter?

 

https://drive.google.com/file/d/18tYO70bg6tTpVEifQGlXSI1ucYuvgLDq/view?usp=sharing

 

this picture shows the air in the tube out of the filter:

 

https://drive.google.com/file/d/1bIr2NuR6K9nEYbwYj36OKaR4umeI2dsK/view?usp=sharing

 

this picture shows the bleed valve:

 

https://drive.google.com/file/d/1umfxt0UbC81YrAxemHWuBGX3M3U-I-3V/view?usp=sharing

 

When I turned on the fuel pump, the click sound was heard; I could see the fuel 
in the tube move with the sound of fuel pump clicks; if I open the bleed valve, 
fuel will come out of the valve in the rhythm of the fuel pump clicks too; 
also, the fuel pump click sound is with faster pace if I keep the bleed valve 
open.

 

I am having a hard time to understand why when there is so much air in the 
fuel, I still have fuel pumped out from the bleed valve at the fuel injector?

 

I will continue to check the fuel lines. Now I remember that, while I was 
trying to figure out what was going on, my wife mentioned to me that she saw 
air bubble going from the filter side to the engine side...

 

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