MEP-016B fuel transfer pump issue

[JOBRLA]

Morning all, newbee here. I picked up a 2008 MEP-016B unit with only 2.7 hours on it. Flushed every thing and added new oil and fuel. I was unable to prime manually , had no resistance at all. Removed the pump and disassembled. There were no sign of gunck or sludge. Diaphragm in good shape. With pump off, I can make the manual prime work. Re-installed and tried manual prime again. There was resistance on first pump the went back the way it was. Backed off the 3 bolts just a quarter of a turn and I heard the diaphragm pop up. Tried manual prime and works. Tighten bolts down and does not. Removed pump and placed finger on cam rod and turned over. Rod extending properly. Re-installed and same thing. Pump only will manually prime with bolts backed off. Any suggestions? Thank you in advance

 

[Guyfang]

Are you sure its the right pump? If it has a part number, check it against the TM. Also, are you sure its installed properly?

 

[JOBRLA]

Yes sir, proper pump, still had all of the Marine tan paint on all of it, had never been removed. The pump base is a oblong triangle. Can only go on one way

 

[Guyfang]

Looks like this?

 

[JOBRLA]

Yes sir, correct pump. I have the complete manual and verified. This is a mystery to me. Thank you so much for responce

 

[Guyfang]

Do you have Item #9? The gasket? That might make the difference. Worked on a lots of these sets, and never saw this problem.

 

[JOBRLA]

Yes sir, installed new gasket. It's a fairly simple pump, not much too it. Thinking about adding another gasket for clearance. I know the unit wasn't designed to be assembled that way. But no other choice. I'm right next to one of the biggest Army bases in the US, Fort Bliss. Think I might go to the motor pool and ask around. If you might think of something, please give a shout. Thank you so much.

 

[JOBRLA]

What is wrong with this picture. Diaphragm shaft housing on a 12 degree angle. Shaft housing cracked at the base. Anyone know where u can get a new pump?

 

[Guyfang]

Ah.
As Paul Harvey would say, "The rest of the story".

So, get into the -24P. Find the part number and NSN. Plug them into Epay and then in other places that might sell such things. When you have found the numbers, post them also. Someone will take a look see also, to cover other places to find it. THEN, open up a Parts wanted thread, tell your story shortly, and then list the type gen set, part #, NSN of what you want. Maybe someone here in the forum has one to sell.

If you need help finding the numbers, say something. Someone will help.

 

[JOBRLA]

As always, thank you sir. I had heard there might be a 24V electric fuel pump replacement in the mechanical one can't be found

 

[Guyfang]

Its possible. We did it several times, when we needed the gene set, and suppl could not give us a part. We just left the pump mounted and added a few longer hoses and an E-Pump.