Allis 200 l need help

[Whistlin200]

I have this Allis 200 and I’m having issues
First of all when I got it it would run for a couple minutes then the glass filter would start bubbling and then it was die after me messing with it at some point the shaft in the injection pump broke so I sent it off to get it rebuilt by a reputable injection pump repair shop I got it back and it ran amazing had no trouble for probably 6 hours on the tractor not when I was trying to spread manure it’s started bubbling again I really don’t know where to start any help greatly appreciate

 

[matthies]

Is the fuel cap venting ??

 

[Whistlin200]

Is the fuel cap venting ??

Yes i think it is I’ve tried running with that off and it doesn’t change anything

 

[Dieseltech]

Gravity fuel system, How well does the fuel flow INTO the filter INLET? Was the ORIGINAL pump hydraulic head pressed apart to find the CAUSE of the head seizure/shaft breakage? I WON'T send out a repaired pump when that happens without KNOWING the cause that wrecked the removed pump, or it MIGHT happen again if the trouble is NOT corrected.

 

[Whistlin200]

Walk me through that how do I check for something like that

Gravity fuel system, How well does the fuel flow INTO the filter INLET? Was the ORIGINAL pump hydraulic head pressed apart to find the CAUSE of the head seizure/shaft breakage? I WON'T send out a repaired pump when that happens without KNOWING the cause that wrecked the removed pump, or it MIGHT happen again if the trouble is NOT corrected.

 

[504]

There is a good chance of sucking air through that rubber line.

 

[Dieseltech]

Walk me through that how do I check for something like that

Take the filter off and see if the fuel flows OUT of the filter inlet port as it should, best done with tank at least half full. if flow appears slow then remove the tank outlet valve and see what is preventing good flow to the filter base.

 

[Bob Bancroft]

I have this Allis 200 and I’m having issues
First of all when I got it it would run for a couple minutes then the glass filter would start bubbling and then it was die after me messing with it at some point the shaft in the injection pump broke so I sent it off to get it rebuilt by a reputable injection pump repair shop I got it back and it ran amazing had no trouble for probably 6 hours on the tractor not when I was trying to spread manure it’s started bubbling again I really don’t know where to start any help greatly appreciate


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The only time I've seen one of those bubble was on a very cold day on a JD tractor when the fuel didn't want to flow.
Kind of irrelevant to your issue- are you drawing from both sides of the tank, as was originally intended? I believe there was a service bulletin back in the 70's which recommended turning the clamp on the water separator upside down.

 

[trackrat]

Take an air hose put air pressure on the fuel tank look for leaks that should show you where it is sucking air, my best solution for your problem