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#1
05-01-2020, 05:40 PM
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Pet cock leaks when opening it
On my 129, I generally keep the gas turned off since there seems to be an occasional leak somewhere at the carb. Today, when I opened the petcock prior to using the tractor, I noticed the shaft seems sort of loose and gas runs down from the top of the petcock. I tried tightening the nut directly above the shaft, but that didn't help. The obvious fix is to just replace the petcock, but thought I'd mention it anyway. Any suggestions other than replacement? Right now I have it open all the way and there is no leak from it - only when turning it. And, at this point, from messing with it, it leaks when all the way closed as well.
Petcock (referred to as "shut-off valve" on the parts website) appears to be part #951-3015 (replaces 751-3015). Looks like it's all one assembly. Price is listed as $21.52. I'll probably shop around and compare. 
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#2
05-01-2020, 05:54 PM
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The packing material is wore out. I used a couple of small o-rings when I had that same problem.
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Richard 1979 IH Cub Cadet 782 w/CH20, dual hydraulics, power steering and Cat 0 three point
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#3
05-01-2020, 06:39 PM
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Quote:
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#6
05-01-2020, 09:44 PM
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Quote:
https://www.ebay.com/sch/i.html?_nkw...g=200&_fosrp=1 Jeff
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#7
05-01-2020, 10:47 PM
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Try to tighten the nut on the petcock, you have to open the valve to get it to tighten.
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Up to 533 and counting... I give up updating my profile!
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#8
05-02-2020, 11:43 AM
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I tried to tighten this nut but it was bottomed out. To compress the packing under it, I loosened the nut and wrapped it with teflon tape. Then I was able to tighten the nut and stop the leak.
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Rusty 149 project with: QA42 snow thrower 38" deck Barn fresh 1811 with: 44c mowing deck QA42A snow thrower 42" snow blade
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#9
05-02-2020, 01:17 PM
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I bought one at my local lawnmower/small engine repair shop for about $11. You could also go with a little red, in-line shut off if you wanted to. Those usually sell for around $3 or so, but then you have to buy the clamps to secure the hose line to both ends of the in-line shut off. If your carb leaks, it sounds like it is time for a rebuild. If funds are available, the rebuild kit is usually $8-$12 for those and it will also help improve the performance of your cub.
Cub Cadet 123
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Still don't know what I'm doing in OHIO?.....If you find me, then please point me back toward INDIANA. 
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#10
05-02-2020, 09:47 PM
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I use this one .
Fuel Shut-Off Valve - Power Equipment Part Number : SME 702351 Fuel Shut-Off Valve - Power Equipment Part #: SME 702351 Line: NAPA Small Engine Parts Fuel Shut-Off Valve - Power Equipment This item is not vehicle specific. Online Price (USD): $5.20 /Each
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