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Question about Fuel Shutoff

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elcidd

10-10-2007 10:15:01




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Previous owner told me he never touched the fuel shutoff, but after reading the stories of leaked fuel on the board, I definitely intend to use it religiously.
I know you're supposed to turn the knob counter-clockwise 2 complete turns to open the fuel, right? So to shut it off, do you only turn it 2 times clockwise? Or do you turn it until it won't turn any more? I probably turned it 6 or 7 times before it came to a stop. Did I do anything wrong?

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motorv8N

10-11-2007 08:23:08




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 Re: Question about Fuel Shutoff in reply to DON TX, 10-10-2007 10:15:01  

elcidd said: (quoted from post at 04:02:35 10/11/07)
motorv8N said: (quoted from post at 17:06:04 10/10/07) I would second 1949 and note the condition of that fuel line too. Pouring gas all over a hot running engine could ruin your day but good. :(


So you think I need to replace the fuel line as well as the shutoff assembly?


Yeah, I'd do that gas line and after draining your tank have a real good look at the bottom of it for thin spots. Unfortunately it all looks kinda iffy under there.
Of course once you start disturbing stuff who knows where the rot will let go. It's like brake lines on the car -- try to change the rotted one out and next thing you know the bleed fitting snaps off, then before ya know it the wheel cylinder itself is leaking, and on and on. third party image

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elcidd

10-11-2007 09:42:53




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 Re: Question about Fuel Shutoff in reply to motorv8N, 10-11-2007 08:23:08  
Yes, that's usually how it goes with me as well. I'll check the manual and see how to go about changing the fuel line, thanks for the advise.



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JFPJR

10-11-2007 06:29:07




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
I shut my fuel off every time too. Just to be safe. But I am curious as to why. I do not think my engine would fill up with gas due to the overflow hole in the bottom of my carb.
Am I wrong?



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motorv8N

10-10-2007 17:06:04




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
I would second 1949 and note the condition of that fuel line too. Pouring gas all over a hot running engine could ruin your day but good. third party image



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elcidd

10-10-2007 20:02:35




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 Re: Question about Fuel Shutoff in reply to motorv8N, 10-10-2007 17:06:04  

motorv8N said: (quoted from post at 17:06:04 10/10/07) I would second 1949 and note the condition of that fuel line too. Pouring gas all over a hot running engine could ruin your day but good. :(


So you think I need to replace the fuel line as well as the shutoff assembly?

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Dan2N217688

10-11-2007 04:18:28




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 20:02:35  
I would try to replace the sediment bowl/ shut off valve assembly and new gas line. I would be very careful in doing so, and I mean very careful. Looks like it's rusted pretty bad into the tank. I'd use a small wire brush to clean it, then WD 40 good. Looks like the sediment bowl has'nt ever been cleaned. Really, if the gas line did'nt look so bad, I'd let sleeping dogs lie, till I did'nt need the tractor for a few days. Maybe just replace the gas line for now. With my luck, and it was mine, I'd plan on a small job turning into a real pain in the arse. If you do it of course, drain the tank, and maybe use a brass brush to clean so no sparky. Just my opinion.

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elcidd

10-11-2007 09:45:35




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 Re: Question about Fuel Shutoff in reply to Dan2N217688, 10-11-2007 04:18:28  

Dan2N217688 said: (quoted from post at 04:18:28 10/11/07) I would try to replace the sediment bowl/ shut off valve assembly and new gas line. I would be very careful in doing so, and I mean very careful. Looks like it's rusted pretty bad into the tank. I'd use a small wire brush to clean it, then WD 40 good. Looks like the sediment bowl has'nt ever been cleaned. Really, if the gas line did'nt look so bad, I'd let sleeping dogs lie, till I did'nt need the tractor for a few days. Maybe just replace the gas line for now. With my luck, and it was mine, I'd plan on a small job turning into a real pain in the arse. If you do it of course, drain the tank, and maybe use a brass brush to clean so no sparky. Just my opinion.


Looking around, it seems those parts are readily available. Having said that, I'd like to order good quality parts that fit properly the first time, can you recommend a good supplier for these parts? Or will they all pretty much be the same?

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Dan2N217688

10-12-2007 02:32:20




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-11-2007 09:45:35  
This site probably sells a better one than I bought at Tractor supply. My opinion it was junk. I'll replace mine again when I paint my tractor this winter. I wish I could of kept the old one. I had my tank lined, replaced the shut off, and made new fuel line out of brake line.



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Too Tall

10-12-2007 04:25:34




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 Re: Question about Fuel Shutoff in reply to Dan2N217688, 10-12-2007 02:32:20  
I got mine at my local New Holland dealership allong with a few spare gaskets. These are prone to leaks, so I wanted to have a few spares on hand incase.

I also made my fuel line out of brake tubing. Brake tubing cost me $3. The ready made line was about $25.
I didn't have the flare or bending tools to do the job, but my local autoparts store (where I got the brake line from) lent them to me for free.
I bent a coat hanger first to plan the bends I'd need. Then used that as a template. If I hadn't, I'm sure I would have broken a few lines with bending and re bending.

TooTall

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Carl (NH)

10-10-2007 17:04:20




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
When the wheel is completely closed an easy way to remember about opening it is: 4 half turns, by grasping the wheel at the 3 & 9 o'clock positions and turning four half turns, that equals your 2 full turns to get to the main tank.
It's a good safety idea to shut the valve each time you're done using the tractor. Also, it will make it harder for someone to steal it because if they don't know N's, the tractor will run out of gas before it goes far!
Carl

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8N1949

10-10-2007 16:21:00




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
elcidd, I agree with all here that believes in turning the wheel to shut the fuel supply to the carb. Once the float sticks in the carb, and you have a full tank of gas, 99% will end up in your engine crankcase.

However, to cure any future problems... get you a replacement gas shutoff valve and sediment bowl unit. soon.. That one in the picture seems to had it's day in life...

You can buy a new unit on ebay, or at any farm implement store for about $18.00..

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Sean (TX)

10-10-2007 15:35:05




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 Re: Question about Fuel Shutoff in reply to RJ IN WYO, 10-10-2007 10:15:01  
I shut mine off and run the carb dry. Then pull the key. Wont walk away till it dies....Dont wanna forget and leave the key on...



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MikeT

10-10-2007 20:52:41




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 Re: Question about Fuel Shutoff in reply to Sean (TX), 10-10-2007 15:35:05  
Me too when I know it will be a long time before next start up. Otherwise I just kill the engine and then tighten the valve.

The valve and bowl i have on now is a replacement but it has the half-open, full-open bit. When the tractor starts sputtering at half open, I open it full and head for the barn.



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D Squared

10-10-2007 15:29:26




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
Your motor would last longer if you changed the oil every day, but I won't do that either. I'll play the odds. You have a better chance of getting hit by lightning then winning the lottery, but people still do it.



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D Squared

10-10-2007 11:38:41




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
Just my 2 cents

I got my N over 10 years ago and haven't shut off the gas yet. If gas leaks when the valve is left on then your carb needs rebuilt. If that happens it would be better to fix the carb then worry about a shut off valve that is working properly.



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Ross Pugh(NC)

10-10-2007 15:13:33




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 Re: Question about Fuel Shutoff in reply to D Squared, 10-10-2007 11:38:41  
D Squared, I have never been struck by lightning either but I ain't pushin' my luck on that one, either. All it takes is just one time for the float in your carburetor to get a hole in it and your gas tank be full and you not shut the fuel valve off and just imagine what will happen. The small act of turning off the fuel is not as much trouble to me as having to have my engine torn down and rebuilt due to "ignorance".

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36 coupe

10-15-2007 03:36:42




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 Re: Question about Fuel Shutoff in reply to Ross Pugh(NC), 10-10-2007 15:13:33  
A speck of dirt or rust can let the gas leak by the valve .I have a friend who has been struck by lightning twice,once in a boat and once in his kitchen.I have had some close calls over the years.A ball of lightning came in the kitchen,landed on the counter top stove ,then jumped into the sink.I was starting up a ladder at a house fire when lightning knocked down a fellow behind me ,another fireman was knocked down on the other side of the house.I have talked with farmers who have been struck while working on fences or loading hay.I have forgotten to shut of the gas on my tractors and got gas in the crankcase 4 times.Children have been killed by lightning in Maine.One was carring a steel fish pole.Another was standing on a small porch when lightning struck a tree and came down a dog run wire.One boy was killed while sliding in January.A boy was struck on a base ball field.The odds may be high but you could be the one in 1000.I think the odds of flooding a crank case a 50 to 1.Being lazy will cost you..

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Dunk

10-10-2007 15:23:20




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 Re: Question about Fuel Shutoff in reply to Ross Pugh(NC), 10-10-2007 15:13:33  
I'll have to agree with Ross.

I'll also add that mine sits a lot (months at a time, but inside out of the weather), the tank is clean because I cleaned it.

I run mine all the way unscrewed, no water build up that way, and if I forget to check the fuel level, oh well, I may have to walk and go git some gas.



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elcidd

10-10-2007 10:40:59




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
Thanks for the info, good to know I didn't get it wrong the very first time!

I'm planning on powerwashing the tractor, is it safe to spray this part, or should I just clean the outside with a brush?



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Too Tall

10-10-2007 10:21:59




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
No, you didn't do anything wrong. If you turn it 2 turns to open it, you use the main part of the tank, then when you run out of fuel, you open it all the way (6-8 turns). That gives you another gallon to finish your work or drive to fuel up.

By opening the valve 2 turns you take fuel from about an inch off the bottom of the tank (avoiding sludge). When you open it up, you pull fuel from the bottom of the tank, and potentially suck sludge into your carb.

TooTall

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Colin King

10-10-2007 10:19:50




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 Re: Question about Fuel Shutoff in reply to elcidd, 10-10-2007 10:15:01  
Sounds like it was just open all the way. I think that if I open mine, I"ll get 4 full turns out of it.

To fully shut it off, turn until it stops.

Colin, MN



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KC audio

10-10-2007 10:25:17




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 Re: Question about Fuel Shutoff in reply to Colin King, 10-10-2007 10:19:50  
Make sure you get in the habit of turning it off everytime you use it and you may have to play with it a few times to get the correct position, my 8 is kind of picky on how many turns out it takes to keep it going but she has an attitude problem anyway.



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mhb@ufe

10-10-2007 15:30:08




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 Re: Question about Fuel Shutoff in reply to KC audio, 10-10-2007 10:25:17  
We just had an 8N in the shop that the owner wanted us to fix the carb leak and replace the starter because the engine wouldn"t turn over. Turns out the base had more gas in it than oil and the bearings didn"t get enough lube from the diluted oil and seized the engine. I think of that tractor every time I park my tractors now and don"t forget to shut the fuel off.



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