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D2 float too big?

D2 float too big?

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AaronH
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All,

I bought a new float from my local Cat dealer last fall. The float is some sort of squishy foam. I am still having flooding problems. Looking the situation over it appears that the new float is a bit too big. It sticks in the float bowl. I took one of the fuel inlet screws out (the one that screws into the top of the float bowl cover). That let me stick a spray can straw down into the float bowl. Without a doubt I can feel the float break loose when I push on it like it was wedged in the bowl. Once I unstick the float gas will start bubbling up out of the screw hole. I have tried to rebend the tab on the back side of the float to give it more clearance there, but it doesn't seem to help. It seems like the foam part itself is too long and also pretty close on the width. I think if this thing is 1/32" shorter and 1/32" narrower it wouldn't jam up in the bowl. I think the old one is a lot smaller, although it's a cork one that looks like it's been through the war and was falling apart. Anyone run into this before?

Thanks,
Aaron
Operating a sanctuary for all things rusty or broken. Current residents include: Allis Chalmers WD45, Oliver Row 77, two Cat D2's, Clark C500-80 forklift, and a wounded Kubota.
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Thu, Jun 5, 2014 7:45 AM
AaronH
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Here ate some pictured of the tag on the carb as well as pictures of the old floats out of my D2s versus the new float.[attachment=23735]IMG_20140604_205500_808.jpg[/attachment][attachment=23736]IMG_20140604_205525_565.jpg[/attachment][attachment=23737]IMG_20140604_205630_583.jpg[/attachment][attachment=23738]IMG_20140604_205809_006.jpg[/attachment]
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Operating a sanctuary for all things rusty or broken. Current residents include: Allis Chalmers WD45, Oliver Row 77, two Cat D2's, Clark C500-80 forklift, and a wounded Kubota.
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Thu, Jun 5, 2014 8:03 AM
STEPHEN
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Reply to AaronH:
Here ate some pictured of the tag on the carb as well as pictures of the old floats out of my D2s versus the new float.[attachment=23735]IMG_20140604_205500_808.jpg[/attachment][attachment=23736]IMG_20140604_205525_565.jpg[/attachment][attachment=23737]IMG_20140604_205630_583.jpg[/attachment][attachment=23738]IMG_20140604_205809_006.jpg[/attachment]
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I got a new style float a long time ago and it wasn't squishy at all, felt rigid to me. Maybe the one you got is defective.
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Thu, Jun 5, 2014 8:32 AM
AaronH
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Reply to STEPHEN:
I got a new style float a long time ago and it wasn't squishy at all, felt rigid to me. Maybe the one you got is defective.
When I say squishy I don't mean like a wet kitchen sponge. More like the tip of your nose, or even a bit more firm than that. It isn't what I would call rigid, but slightly compressible. I bought two at the same time, one for each dozer. The other float seems to be working fine as the knob is broken off the shut off valve so I can't shut the gas off on that tractor and it isn't flooding the pony (yet). This one seems to be an issue though. If you look at the pictures you can see how much larger the new float is than the old ones. I'd say it's at least 1/8" longer if not 3/16" and about an 1/8" wider.
Operating a sanctuary for all things rusty or broken. Current residents include: Allis Chalmers WD45, Oliver Row 77, two Cat D2's, Clark C500-80 forklift, and a wounded Kubota.
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Thu, Jun 5, 2014 8:52 AM
cojhl2
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Reply to AaronH:
When I say squishy I don't mean like a wet kitchen sponge. More like the tip of your nose, or even a bit more firm than that. It isn't what I would call rigid, but slightly compressible. I bought two at the same time, one for each dozer. The other float seems to be working fine as the knob is broken off the shut off valve so I can't shut the gas off on that tractor and it isn't flooding the pony (yet). This one seems to be an issue though. If you look at the pictures you can see how much larger the new float is than the old ones. I'd say it's at least 1/8" longer if not 3/16" and about an 1/8" wider.
You should put that float on the back burner and get the shutoff fixed!!!:mmph::fear:
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Thu, Jun 5, 2014 12:09 PM
Deas Plant.
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Reply to cojhl2:
You should put that float on the back burner and get the shutoff fixed!!!:mmph::fear:
Hi, Aaron H.
Checkenzee das needle and seat that the float is supposed to be opening and closing.

Hacking and chopping at that float may cause another problem if you break the 'skin' on the outside and there just happens to be foam in there that can fill up with gas and destroy the buoyancy.

Just my 0.02.

You have a wonderful day. Best wishes. Deas Plant.

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Thu, Jun 5, 2014 4:31 PM
drujinin
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Reply to Deas Plant.:
Hi, Aaron H.
Checkenzee das needle and seat that the float is supposed to be opening and closing.

Hacking and chopping at that float may cause another problem if you break the 'skin' on the outside and there just happens to be foam in there that can fill up with gas and destroy the buoyancy.

Just my 0.02.
You stated you bought two at the same time.
Was one bigger than the other?
Especially if they are essentially the same Carbs just different tractors.
I always thought they are rigid too, maybe indeed the one with issues has a leak and absorbed Gas causing it to swell?
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Thu, Jun 5, 2014 6:10 PM
AaronH
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Reply to drujinin:
You stated you bought two at the same time.
Was one bigger than the other?
Especially if they are essentially the same Carbs just different tractors.
I always thought they are rigid too, maybe indeed the one with issues has a leak and absorbed Gas causing it to swell?
I didn't compare the two floats when I bought them, simply installed them. It would be nice to see what the other one looks like, but it appears to be working currently so I don't want to mess with it. I think you guys are on to something, however. I left the float out of the carb overnight and it is a lot more firm today then it was yesterday. So, I ordered another float from Cat today, will have it tomorrow. Hopefully I have better luck with this one.
Operating a sanctuary for all things rusty or broken. Current residents include: Allis Chalmers WD45, Oliver Row 77, two Cat D2's, Clark C500-80 forklift, and a wounded Kubota.
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Fri, Jun 6, 2014 8:26 AM
ccjersey
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I think I would try dipping those old ones in a gas tank liner compound like RedKote or POR 15 etc. For the price of some new/defective ones, you can probably fix your old ones permanently and get your tank relined too! Red Kote comes in quarts which would be a big plenty for several pony motor tanks and a dozen or more cork floats.

The Red Kote instructions recommend acetone for the final rinse before pouring in the red stuff. Could rinse/soak the cork floats and then let them air dry before dipping.

Might not work, but you can reline your gas tank and get rid of all the rust even if the floats don't work out.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄
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Fri, Jun 6, 2014 9:53 AM
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