MKT 2KW Gen Set Question

[rumplecat]

A 2kw diesel gen set came with my MKT. Fuel lines were completely rotten, but I decided to try the motor anyway, there was enough diesel in the line for it to fire off on the second pull, ran a few seconds and I cut it off. Now I have replaced all the fuel lines, what is the easiest way to purge air from the system? I have loosened the line to the pump, and the injector still no movement of diesel even at a 30 degree angle! Is there a secret or do I just keep on keeping on? It is a sharp little gen set only 27 hours on it.
James

 

[Stonepicker1]

Figure 2-4. Fuel Filter Bleed Screws

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ARMY TM 9-6115-673-13&P AIR FORCE TO 35C2-3-512-1 WARNING The fuels in this generator set are flammable. Do not smoke or use open flames when performing maintenance. Do not service or drain the fuel system while open flames are present. Flames and explosion could result in severe personal injury or death. Use a container or cloth to catch any excess fuel to prevent spilling over engine components. Be sure to properly dispose of diesel fuel and diesel fuel soaked cloths. WARNING Hot fueling of generator sets while they are operating presents a safety hazard and should not be attempted. Hot engine surfaces and sparks produced from the engine and generator circuitry are possible sources of ignition. Failure to observe this warning could result in severe personal injury or death. (1) Check that fuel tank has fuel and that fuel shutoff valve (Figure 2-4) located on the filter is positioned to ↓O (open). (2) Open two bleed screws (Figure 2-4) at top of filter in the order listed below. (a) Open left bleed screw to bleed air from tank-to-filter fuel line. (b) Open right bleed screw to bleed air from filter to pump fuel line. It may be necessary to squeeze line by hand to force air out of bleed screw. (3) When fuel flows freely and evenly out of bleed screws (without air bubbles), tighten both bleed screws. (4) Loosen output fuel line fitting at fuel injection pump, place engine RUN lever to RUN position, depress and hold decompression lever, and pull recoil starter rope until fuel flows from around fuel line fitting (without air bubbles). Tighten output fuel line. BLEED SCREWS CLOSE OPEN FUEL SHUTOFF VALVE Figure 2-4. Fuel Filter Bleed Screws 2-19

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[rustystud]

Is this unit the MEP-531 ? If so there are bleed screws on the filter and you might need to crack open the injector line until you see fuel coming out.

 

[timntrucks]

a mechanic i was talking with today at a big truck fix em up shop told me that the yellow looking weedeater type fuel line that was on my 2kw gen will not hold up to diesel.. so that is why they are all falling apart

 

[rumplecat]

My fuel filter bowl filled with no problem, getting the fuel past the fuel pump is my problem! I have the injector line loose and still no flow! I am going to play with it some more tonight. Tim, at first I thought my lines were cut but then just moving them they broke off so no sabotage just bad tubing. I hope the clear tubing from Lowe's holds up, it was all I could find that was transparent.
James

 

[rustystud]

My fuel filter bowl filled with no problem, getting the fuel past the fuel pump is my problem! I have the injector line loose and still no flow! I am going to play with it some more tonight. Tim, at first I thought my lines were cut but then just moving them they broke off so no sabotage just bad tubing. I hope the clear tubing from Lowe's holds up, it was all I could find that was transparent.
James

Don't use the transparent fuel lines. Mine also came with these lines and I have had to replace them. According to the TM these fuel lines are supposed to be replaced every 2 years. I have since gone with a diesel fuel approved line.

 

[rustystud]

a mechanic i was talking with today at a big truck fix em up shop told me that the yellow looking weedeater type fuel line that was on my 2kw gen will not hold up to diesel.. so that is why they are all falling apart

That's exactly right !

 

[DieselGenAC]

Use fuel specific tubing for the fuel lines. Standard clear PVC from the hardware store won't hold up. I have used this fuel specific stuff from McMaster with no problems - http://www.mcmaster.com/#standard-plastic-and-rubber-tubing/=s6t71l

 

[rustystud]

Use fuel specific tubing for the fuel lines. Standard clear PVC from the hardware store won't hold up. I have used this fuel specific stuff from McMaster with no problems - http://www.mcmaster.com/#standard-plastic-and-rubber-tubing/=s6t71l

Good Find ! I now know where I'll be buying my fuel lines from now. Thanks !