2004 johndeere 310 backhoe cranks but wont start

[wyowayne]

Hello,
I have a 310 that will crank fast but won't start and run. The day before it was hard to start but ran good al day. Today she will spin but not run. We have bled fuel system, changed filter. Changed pick up pump. Now we have been told that it is fuel solenoid in pump. Applying 12 volts to solenoid doesn't make it click. What else could this be.

 

[thepumpguysc]

Use a test lite or volt meter to MAKE SURE your getting 12v TO the soleniod..if not, check key switch and fuses..
Remove the fuel return line connector on top of the pump top cover..NOT JUST THE LINE BUT THE ENTIRE CONNECTOR. [you should see a small glass ball in the end of it]
The solenoid "should" click with 12v applied..you may need to remove the top cover..
Once you get it "clicking".. try to start the engine without the return line connector...
Let us know..

 

[wyowayne]

Use a test lite or volt meter to MAKE SURE your getting 12v TO the soleniod..if not, check key switch and fuses..
Remove the fuel return line connector on top of the pump top cover..NOT JUST THE LINE BUT THE ENTIRE CONNECTOR. [you should see a small glass ball in the end of it]
The solenoid "should" click with 12v applied..you may need to remove the top cover..
Once you get it "clicking".. try to start the engine without the return line connector...
Let us know..

Thanks I will do this later today. Really appreciate the help. When should I get fuel and when should I not get fuel (around glass ball) or tubing.

 

[thepumpguysc]

1st the connector with the glass ball should be removed..entirely..you should only have a hole in the top cover..
Your probably not going to get fuel to flow from the top cover unless you get the solenoid to work..if you cant get fuel in, you cant get fuel out..the solenoid prevents fuel from entering, actually it moves the metering valve to a "no-fuel" position..

 

[wyowayne]

1st the connector with the glass ball should be removed..entirely..you should only have a hole in the top cover..
Your probably not going to get fuel to flow from the top cover unless you get the solenoid to work..if you cant get fuel in, you cant get fuel out..the solenoid prevents fuel from entering, actually it moves the metering valve to a "no-fuel" position..

Ok, so I can crank engine. I get fuel to the injectors. This is how I bled the system. Does this mean I am on the wrong track maybe.?

 

[thepumpguysc]

If you have fuel AT THE INJ. tighten the lines and see if it will run..WITHOUT THE RETURN CONNECTOR.

 

[wyowayne]

If you have fuel AT THE INJ. tighten the lines and see if it will run..WITHOUT THE RETURN CONNECTOR.

Thanks I will get this done. And let you know. Thanks for your patience. It is greatly appreciated.

 

[wyowayne]

If you have fuel AT THE INJ. tighten the lines and see if it will run..WITHOUT THE RETURN CONNECTOR.

Ok did this. Still no go. New solenoid put in yesterday. What next sir.

 

[wyowayne]

Ok did this. Still no go. New solenoid put in yesterday. What next sir.

Correction 410g. Hey does the seat have a pressure switch, will this start with out an operator in the seat.

 

[thepumpguysc]

I assume you had the top cover off to replace the solenoid..
So your familiar with removing the 3 top cover screws..The engine SHOULD START with the top cover removed IF the metering valve is free..and you have good compression..and the engine is spinning over fast enough..What color smoke do you get from the exhaust while cranking?
IF THE ENGINE FIRES WHILE THE TOP COVER IS OFF..YOU HAVE TO REACH IN AND PULL THE LINKAGE TO SHUT OFF, TO GET IT TO SHUT DOWN..TOWARDS THE BACK OF THE PUMP

 

[wyowayne]

Black smoke while cranking, can I do this alone. Or will engine over speed.

 

[thepumpguysc]

YOU CAN DO IT ALONE..Once it fires.. push the throttle to idle..its going to be "messy" cuz the fuel is going to "spew".. YOU ARE TRYING TO START IT IN FULL FUEL, RIGHT?? WIDE OPEN THROTTLE..

 

[wyowayne]

Usually don't have to do wot, I will try. And you caught that I have a 410 not a 310.

 

[thepumpguysc]

didnt catch that...since your all over the inj.pump...can you give me the #'s off the name plate on the inj. pump?

 

[wyowayne]

H4 db4 429-5564
10918483
're502376

 

[thepumpguysc]

OK..The DB4 is prone to "cam ball" failure..BUT lets not jump the gun yet..When you had the TC off..did you see ANY SIGNS of water or rust??
Was the metering valve free..its the valve that sits in the pump that the govenor arm hooks to..with the little [diameter] spring on the right hand side..of the BIG spring in the center of the pump.
IT SHOULD move back and forth with your finger.

 

[wyowayne]

Moves nice. Should I try to start it now. Without top cover. I dont see rust. Or anything looks clean.

 

[wyowayne]

OK..The DB4 is prone to "cam ball" failure..BUT lets not jump the gun yet..When you had the TC off..did you see ANY SIGNS of water or rust??
Was the metering valve free..its the valve that sits in the pump that the govenor arm hooks to..with the little [diameter] spring on the right hand side..of the BIG spring in the center of the pump.
IT SHOULD move back and forth with your finger.

Should I still try to start without top cover.

 

[thepumpguysc]

YUP..just be prepared to shut it down if it starts

 

[wyowayne]

YUP..just be prepared to shut it down if it starts

Doesn't run. Hey how do you time this pump.