MEP806A Stanadyne injector pump stuck

[sfus2645]

Hello, I have a 1995 MEP006A with a John Deere engine. I need to rebuild the fuel injection pump. I have try everything I can think off to remove that pump, I even built a tool with a 2 ton hydraulic bottle jack, and applied at least two tons of pressure on it, and it doesn't move. Any ideas??

 

[Scoobyshep]

Heat the sprocket and tap with an air hammer

Sent from my SM-S908U using Tapatalk

 

[2Pbfeet]

+1 on heat. It is your friend here, but a gear puller is probably the tool that you want.

Did you get the pump timed to the engine already? It really helps reinstallation. Here's a video of a similar Stanadyne removal from a JD engine;

PM if you need a rebuilder. I know a good one in SC.

All the best,

2Pbfeet

 

[sfus2645]

I heated it up till it was red hot, applied the air hammer and it came off. Thank you very much for the help

 

[Guyfang]

Never saw a MEP-006A with a JD engine in it. Not army standard. Did they keep the original Main Gen?

 

[uniquify]

Didn't they start making the 80x series around 1993?

Any chance the 1995 MEP006A is actually an 806A? That could explain a JD engine.

 

[Guyfang]

This is not, according to SFUS, an MEP-806A. Its an MEP-006A. Different animals. I think maybe SFUS wrote the wrong model number, or someone put a JD engine in a MEP-006A

 

[Guyfang]

I just remember seeing this.

 

[sfus2645]

I finally was abled to pull it out.

 

[sfus2645]

I installed the new pump, it starts perfect.
Now I have a new problem, under voltage.
I replaced the fuse next to the voltage regulator just in case but it didn't solve the problem.
Any Ideas

 

[sfus2645]

This is not, according to SFUS, an MEP-806A. Its an MEP-006A. Different animals. I think maybe SFUS wrote the wrong model number, or someone put a JD engine in a MEP-006A

You are right it's a MEP-806A

 

[Scoobyshep]

I installed the new pump, it starts perfect.
Now I have a new problem, under voltage.
I replaced the fuse next to the voltage regulator just in case but it didn't solve the problem.
Any Ideas

Under voltage light or is the voltage actually low?

 

[sfus2645]

Both the light and very low voltage

 

[kloppk]

Does the Voltmeter and freq meter show good voltage and frequency while you have S1 in START and the engine running?
If so use the AC VR test procedure called out in the -24 TM. Use the correct procedure since your generator may have a Libby or a TRC VR. Different procedures for the two of them.

 

[sfus2645]

I did the test specified on the TM
on H instead of 8 VDC I got 10-11 VDC
on J instead of 67.5 to 90 VAC I got 1.5 VAC
on L instead of 108 to 132 VAc I got 11 to 12 VAC