oliver super 88 starving for fuel

ColeHans

Member
i have a super 88 that i have been using for green chopping, it runs great but i have an issue when its getting worked itll start galloping like its starving for fuel and the second i push the clutch in itll go away, ive changed the sediment bowl and have cleaned the carb, i know there is some crap floating in the tank but i checked the bowl and its still clean
 
Take your sediment bulb off and crack the
valve make sure you have good flow from the
tank. Found a bumble bee in mine just above
the valve I like to use a syringe to blow
out the small passages.
 
Very good chance that when your running it the crap that is in the tank gets sucked to the fuel outlet and that clogs it up for a moment then when you push the clutch pedal down it is not needing as much fuel and the stuff floats off and your good to go till it happens again. I have had that happen on more the one tractor. Best thing top do is remove the whole sediment bowl assembly and flush to crap out of the tank
 
thats what i was hoping for, and i also wonder that my intake manifold is cracked on the heat exchanger part, i dont know if that would make a difference either
 
My Oliver 7300 combine about drove me nuts the first year I had it. It would do just what you describe. Work it hard and it would run rough. I got going up a side hill one time and it bogged right down and died. Out of pure desperation,I unscrewed the sediment bowl out of the bottom of the tank. There was a kernel of corn down in the neck of the assembly. I got that out and it's been fine for years now.
 
most likely exactly what's been said, but Olivers used to vapor lock according to one
retired farmer I know. He claimed they had a heck of a problem when it was hot out. I
don't know if clutching it would solve a vapor lock though, I'd think it would just
die, not smooth out.
 
Forgot about that had a ford that would do that if you put ethanol in and it would vapor lock when working it and it got hot and if you didn't work it and it stayed cool it would work. That might be something to think about is using non ethanol gas and try that it's also something to think about ethanol might have cleaned the tank and there could be a lot of dirt knocked loose.
 
(quoted from post at 07:15:13 09/17/16) i have a super 88 that i have been using for green chopping, it runs great but i have an issue when its getting worked itll start galloping like its starving for fuel and the second i push the clutch in itll go away, ive changed the sediment bowl and have cleaned the carb, i know there is some crap floating in the tank but i checked the bowl and its still clean

We had a 1650 give us trouble. We ended up drilling out the main jet. It takes more volume of fuel to produce the same power.
 
Vapor lock or crap blocking it, it's a blockage and great news to my way of thinking.

Back when the average guy worked on engines like these many "read" the spark plugs. Don't hear much about that anymore. Some of those charts describing what your seeing on the plug are probably still around and if some are different from the others could pinpoint a cracked intake manifold as the fuel to air will be off. Heat will cause the crack to expand.
 

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