low pressure mep003 pumps

[robkiller]

So as part of my trouble shooting to figure out why my unit is hard to start I am looking to make sure I have a fuel flow check valve. I cant find it. My main fuel line from the tank goes right to a pump. The pump does not look normal like the other 2 so maybe its got it build in. I dont know so I am posting pics to see what you guys think. The ine I am talking about is on the outside of the genset.

 

[robkiller]

So in pic 2 you see the 3 pumps. The two next each other are normal. Pic 3 shows the one I am talking about. The line you see in pic 3 comes right from the tank. And hook into that thing. Is that a pump with a check valve? Have you guys seen it before? Pic one shows an item that has wires coming from it I am just wondering what that is. Lol

 

[Speddmon]

You're looking at the solenoid for the aux. fuel pump. The solenoid turns on and brings fuel into your day tank from an aux source.

 

[Speddmon]

The check valve is loacted after the secondary fuel filter and before the IP. Look at the -12 TM on page 1-9. Look at figure 1-5, that is the one line breakdown of the fuel routing.

 

[robkiller]

I feel dumb i looked at those pics on the TM already but did not prosses it its on the other side of the filters thats why i did not see it. My fault. Thanks i did not know that was the aux switch but that also makes since. Thanks everyone.

 

[robkiller]

Does anyome have a picture of this check valve?

 

[Jimc]

rob its just a short tube about 11/2" long after the last fuel filter. a little metal band clamp with a bolt holds it to the flywheel housing if i remember right.

 

[1800 Diesel]

Does anyome have a picture of this check valve?

Photo attached, check valve is circled in black. It's a little hard to see since the check valve appears to be a pipe coupling.

BTW, I've come across units without these installed & have used the NAPA part similar to the one at this link:

http://www.napaonline.com/Catalog/C...uel-Line-Check-Valve/_/R-AFPCV8000_0108191770

Kevin

 

[robkiller]

Can they go bad or do they?

 

[storeman]

never seen a bad one but they might clog. easy enough fix with an air hose at low pressure.
Jerry

 

[robkiller]

Cool I will look at it asap thank everyone.

 

[TucsonVTXF]

Mine was blocked when I did my first start/ bleed of system. compressed air did the trick.