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I Just Can't Figure It Out


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#1 SearsYellow OFFLINE  

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Posted April 13, 2013 - 07:16 PM

I've been working on a 16g for a couple of weeks now. When I first got the machine it wouldn't run without the choke off. Cleaned the carb and it started purring like a kitten. Got that fixed and the fuel pump acted like it wasn't working. I took the pump off and placed the in side in gas and pumped it with my hand and shot out at least 6 inches out. I put it back on the gravely and nows it appears to be pumping for a few seconds and then stop. When it stops it acts as though it's not pumping then it will surge and fill the fuel filter slam full. Then it will pump for a few seconds and repeat...

 

 

Anyone have the slightest what it could be? At this point I am lost.


Edited by SearsYellow, April 13, 2013 - 07:18 PM.


#2 Rock farmer OFFLINE  

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Posted April 13, 2013 - 07:21 PM

Sounds like a bad diaphram on the pump. Pumps good until it see pressure, then spills back thru a hole in the diaphram?

That's my guess!

Joe

#3 boyscout862 ONLINE  

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Posted April 13, 2013 - 07:21 PM

Check that your gas line is collapsing or your gas cap vent is plugged. Good Luck, Rick


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#4 chris m OFFLINE  

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Posted April 13, 2013 - 07:55 PM

I am thinking the same as Rick (boyscout862) It sounds like it is creating a vacuum. We already had one member today that had a plugged fuel cap, maybe yours is too?


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#5 HDWildBill ONLINE  

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Posted April 13, 2013 - 08:29 PM

Along with Rick's suggestion check fuel filter if it has one.


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#6 SearsYellow OFFLINE  

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Posted April 13, 2013 - 08:30 PM

I've ran it with the gas cap on but no screwed down and it still does the same thing. I even went thru and made sure nothing was kinking the line and I can't find anything. I am working on this for my neighbors dad and he wants it back and I am one of those guys that can't give up. I have to fix it.

 

We just put a brand new fuel filter on it and new gas line. I can get my air compressor and blow air into the tank and it fills up the fuel filter.


Edited by SearsYellow, April 13, 2013 - 08:33 PM.


#7 HowardsMF155 OFFLINE  

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Posted April 13, 2013 - 08:34 PM

Can you rig a line to the fuel pump with a temperary tank?  If everything checked out then, you would have narrowed it down a bit.  If it still ran poorly, you could also try rigging something directly to the carb, see how that worked without the fuel pump.



#8 boyscout862 ONLINE  

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Posted April 13, 2013 - 08:41 PM

 I am one of those guys that can't give up. I have to fix it.

That is integrity. An admirable quality in people.


Edited by boyscout862, April 13, 2013 - 08:45 PM.

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#9 chris m OFFLINE  

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Posted April 13, 2013 - 08:43 PM

Is it running bad when this happens?



#10 boyscout862 ONLINE  

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Posted April 13, 2013 - 08:44 PM

Is there a filter screen inside the fuel tank that may be plugged?


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#11 SearsYellow OFFLINE  

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Posted April 13, 2013 - 09:00 PM

it runs beautifully until it runs out of gas. I checked the fuel filter and NOTHING was in the fuel filter. Then I checked the gas tank and it was still a 1/4 full. It has a 5 gallon tank so 1/4 is quite a bit of gas. I may go thru and reroute the gas line tomorrow and do the suggests that howardmf suggested about the temp gas tank.


Edited by SearsYellow, April 13, 2013 - 09:01 PM.


#12 Guest_gravely-power_*

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Posted April 13, 2013 - 09:08 PM

The fuel valve on the bottom of the tank has a very fine screen on it. those will clog and cause the problem you are having.


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#13 SearsYellow OFFLINE  

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Posted April 15, 2013 - 08:54 PM

Gravely-Power.. I owe you a million thanks!!!!!! I took the gas tank off and unscrewed the fuel shut off. I tried spraying carb cleaner to maybe break up anything inside of I and I could not even get carb cleaner thru the hole and filter. I ended up ripping the small metal mesh filter off because we are running a inline filter also. After that I ran it for a hour and it never cut off. IF I knew there was a filter on the fuel shut off I would have checked it sooner.

 

 

Thank you to everyone else for the help also. It's greatly appreciated!

 

Sorry for the grammar. I am so tired I can barely keep my eyes open.


Edited by SearsYellow, April 15, 2013 - 08:55 PM.

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#14 SearsYellow OFFLINE  

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Posted April 16, 2013 - 12:44 PM

Thanks to you also boyscout862. I guess I owe you a million and 2 thanks since you mentioned it first.....

 

 

Im trying to give credit where credit is due.

Is there a filter screen inside the fuel tank that may be plugged?


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#15 boyscout862 OFFLINE  

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Posted April 16, 2013 - 01:53 PM

We are all glad to hear that your problem is solved. Now, how about some pics of the tractor running? Good Luck, Rick






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