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#11
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If the tank is leaking, the fuel may be evaporating, so no puddle obvious. Had a complete tank drain on a 108 one time in a shed with a wooden floor. No evidence other than an empty tank...
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#12
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And the answer is: Its running right out the carb and through the air cleaner.
Hadnt had enough gas in it to notice (either only put a small amount in, or ran it to almost empty). The oil is high but that didnt change. Overnight the tank drained empty and its clearly coming through the air filter. Just as everyone said was likely (funny how that happens huh, the guys on this forum know what they are talking about) As long as its not doing damage, Im going to leave it alone until I get my other projects completed (close.. they are close..... need to make that last push...) |
#13
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It may run rich if it's over flowing. I'd fix it. May be just a bit of dirt in the needle and seat for the float. Most of the time you can remove the float bowl, pull the pin that holds the float and drop the needle out without removing the carb from the engine. Blow some compressed air through the fuel line to the carb and put it back together.
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL |
#14
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Knowing, is 1/2 the battle. Or should be.
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Steve |
#15
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Good trick Sam! I rebuild my carb last year, he didn't leak until last week, the bloody thing drop a full tank of Premium ethanol free gas! I remove the carb to take a closer look and everything look find and clean, I even test the 1 year old float.
I reassembled the carb, fill the tank and run the engine for few minutes, no more leak! I shot off the engine but let the fuel cut-off valve open, came back in the garage at the end of the day and the carb was leaking again! I think this Cub is possessed ! I may call a priest for an exorcise ! Seriously It's a PITA to deal with ghost leak!
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Gilles. 1988 2072 401 54" hyd angled blade 1988 1872 364 snowblower/C50 deck 1976 1650/QA42A blower/44A deck/standby 1976 1450TS/Sleeve hitch/44A deck/in storage 1963 100 (red)/in storage 2010 Kubota 2380-2/42" infinity deck (engine swap) |
#16
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Just replace the needle & seat or just the needle and it will prolly cure it.
It did on mine, and I didn't remove the carb, I did it on the engine. The old needle tip was hard and had a ridge worn in it. looking @ it, I don't know how it stopped any fuel @ all. |
#17
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I guess if it were mine I would just remove the carb from tractor give it a good cleaning and inspection. Install a carb kit in it and adjust float and wash my hands of the situation. I don't ever shut my fuel petcocks off unless I am transporting them on a trailer.
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149,682,1641,1711 with a 12hp in it 1 8" brinly plow 1 10" brinly plow 451 snow blower,H-48 International snow thrower 42" york rake with fold down grader blade. |
#18
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Quote:
Two more possibility's for the OP... 1-Check the gas tank, line and filter for any water contamination since temp goes bellow 32F ice may have frozen your float and left the needle open. 2-Look for structural damage (metal fatigue) on the carburetor body.
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Gilles. 1988 2072 401 54" hyd angled blade 1988 1872 364 snowblower/C50 deck 1976 1650/QA42A blower/44A deck/standby 1976 1450TS/Sleeve hitch/44A deck/in storage 1963 100 (red)/in storage 2010 Kubota 2380-2/42" infinity deck (engine swap) |
#19
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Fuel tank on My 1200 goes completely dry with the petcock plunger type closed. I find it leaks around the rubber insert in which it sits.
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