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#1
10-05-2013, 09:33 PM
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M18 breather hose shooting gas
hello all -
my 1872 will start and run a few seconds but then it starts shooting oily gas out of the breather hose that comes up to the air filter housing. I haven't taken anything apart yet as this has been my workhorse tractor but wanted to see if anyone has seen it before. I searched and saw some threads discussing blown head gaskets but not much out there. Thanks!
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- Tim 1872 60" Haban deck- 2082 450 blower, 50c deck - 1450,1650 2x44a deck, QA-42A snowthrower, 70 w/k181(destroyed) 38" pin on deck 
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#3
10-05-2013, 09:56 PM
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Quote:
A carb rebuild was on my list and I've had a rebuild kit since last spring. This was the one tractor I;ve never done much work on. Always ran so well I didn't want to mess with a good thing and now it's catching up with me. Hopefully it's as easy as the Carb rebuild since I've done that on my 1450- thx again.
__________________
- Tim 1872 60" Haban deck- 2082 450 blower, 50c deck - 1450,1650 2x44a deck, QA-42A snowthrower, 70 w/k181(destroyed) 38" pin on deck
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#4
06-12-2014, 07:44 PM
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It's been awhile but I wanted to update this in case others were having similar problems.
I Pulled out the Carb and I think this was its first cleaning ever(800+hrs). The inlet needle valve didn't have it's little clip holding it to the float tab and the float had fluid inside of it. Replaced those along with welch plugs and a good cleaning and she's running great.
__________________
- Tim 1872 60" Haban deck- 2082 450 blower, 50c deck - 1450,1650 2x44a deck, QA-42A snowthrower, 70 w/k181(destroyed) 38" pin on deck
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#5
06-12-2014, 07:51 PM
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Also, check to see if the diaphragm in the fuel pump is leaking.
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[B]Roland Bedell[/B] CC Models: 100, 105, 1450, 782, (2) 784, & 2072 [SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1:
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#6
06-12-2014, 08:00 PM
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I had heard that is another good possibility on these magnums with the pump mounted on top of the engine.
I haven't taken off this type of pump before so how can check for that leak after I get it off? Also I've read about bypassing the fuel pump all together and just use gravity since the tank is 85% above the Carb. any advice?
__________________
- Tim 1872 60" Haban deck- 2082 450 blower, 50c deck - 1450,1650 2x44a deck, QA-42A snowthrower, 70 w/k181(destroyed) 38" pin on deck
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#7
06-12-2014, 08:03 PM
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As many fuel pumps as I've seen leak gas on a mag, I don't even risk it. Just buy a new pump with the carb kit. $50 for a fuel pump is cheaper than a new engine when it scuffs the rod while working it because it was leaking fuel and you didn't know. BUY THE PUMP TOO.
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#8
06-12-2014, 08:09 PM
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Carb is all done and back on.
Any thoughts on letting gravity handle it and skip the pump? I will check out the pumps, easy enough and they don't look too expensive out on Ebay. Thanks!
__________________
- Tim 1872 60" Haban deck- 2082 450 blower, 50c deck - 1450,1650 2x44a deck, QA-42A snowthrower, 70 w/k181(destroyed) 38" pin on deck
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#10
06-12-2014, 08:17 PM
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Thanks J - Thought so, either way should be pretty easy.
__________________
- Tim 1872 60" Haban deck- 2082 450 blower, 50c deck - 1450,1650 2x44a deck, QA-42A snowthrower, 70 w/k181(destroyed) 38" pin on deck
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