How Do You Repair A Gas Shut Off On A Ford 9n Tractor

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Fuel Shut off Valve Problem

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Scott1ky

11-24-2007 18:04:02

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Hey everybody,

I got the freshly painted hood mounted today on my 1948 8n, and fuel tank and everything hooked upward. Once I got it on I had to do a few touch ups on the paint (yet haven"t figured out how to mount a hood on an 8n without dinging the dash.) I"grand having sort of a strange problem with the shutoff valve, and need some advice from some of you experienced tractor guys.

If the fuel shutoff valve is fully opened, it does not leak but if yous plough it completely off (airtight) it volition leak really bad. This is bad because I can not turn off my fuel now, and this could (probably will) flood my carb every time. Any suggestions? I am thinking I may have to order a new shutoff associates. If then, I volition have to drain the tank, merely can I install the new valve with the tank nevertheless attached to the hood?

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harvey2fords

11-26-2007 16:08:58

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Re: Fuel Shut off Valve Problem in respond to Scott1ky, 11-24-2007 18:04:02

While we are on this discipline, I would like opinions as to employ of thread sealer, teflon tape, motorcar parts goop, etc. for situations such every bit fuel tank to fuel cut-off, sediment bowl to fuel line, fuel line to carb elbow and the like.

Thanks

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Hobo,NC

11-25-2007 07:29:45

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Re: Fuel Close off Valve Trouble in reply to Scott1ky, eleven-24-2007 18:04:02

If you lot tighten the nut on the stalk and its difficult to plough and still leaks the pack"north has got hard on ya. I accept not tried the rope trick,,, I use a gasket punch (three/8") cut out a few from a thick old leather belt then use a dremel tool to fire a pigsty in the middle with 1 of the small-scale concatenation saw sharping $.25 in the set. Werks rite well,,, I still believe the original seal was leather like nigh of the seals used in that fault. I accept had to reseal new"n with my old belt,,, I have yet to figger out what the hill they used on the new"ns, the sealis hard equally a stone I kin tell ya that. Unscrew the nut and the stalk,,, the stalk will pull out,,, it mite B a beach just will come up out. Nutter play a joke on i use to clean"em is to put the parts in a jar and cover with restriction fluid,,, it will clean it like new in a few days.
Don"t let it beat ya the fuel shut off is as simple equally it gits

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Bruce (VA)

eleven-25-2007 08:52:46

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Re: Fuel Close off Valve Problem in respond to Hobo,NC, eleven-25-2007 07:29:45

Brake fluid or brake cleaner?

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Hobo,NC

11-25-2007 09:13:26

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Re: Fuel Shut off Valve Problem in reply to Bruce (VA), 11-25-2007 08:52:46

fluid,,, new or used

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Bruce (VA)

11-25-2007 10:49:34

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Re: Fuel Shut off Valve Problem in reply to Hobo,NC, 11-25-2007 09:13:26

Tnx. I only learned something.

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Douse

eleven-24-2007 18:20:32

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Re: Fuel Close off Valve Problem in reply to Scott1ky, 11-24-2007 eighteen:04:02

They are right, and backside that nut should be some graphite impregnated mop string, aye I said cotton mop string.

Any hardware store should carry it.

It tin ware out and need to be replaced.

But then I have been off my rocker earlier.

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Scott1ky

11-24-2007 18:26:11

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Re: Fuel Close off Valve Trouble in answer to Dunk, xi-24-2007 18:20:32

Douse,

Cotton mop string? That's interesting. It that some sort of gasket fabric? Would y'all try to tighten the nut kickoff, or take it completely off first and encounter if the cord is gone? Thanks,
Scott

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Bob

11-24-2007 21:18:47

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H2o pump packing.. in respond to Scott1ky, 11-24-2007 18:26:11

Old-timers telephone call the graphited cord "water pump packing".

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Dunk

11-24-2007 eighteen:38:42

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Re: Fuel Shut off Valve Problem in reply to Scott1ky, 11-24-2007 18:26:xi

Tighten it offset, if it bottoms out, and yet leaks, become to the hardware store, and ask for faucet packing.

You lot may have large and small-scale to select from, select the pocket-size.

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Douse

11-24-2007 18:41:33

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Re: Fuel Shut off Valve Trouble in reply to Dunk, xi-24-2007 18:38:42

They may make it out of teflon these days.

Faucet Stem Packing Teflon, 1/8

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Bruce (VA)

xi-24-2007 18:57:xi

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Re: Fuel Close off Valve Problem in answer to Dunk, 11-24-2007 18:41:33

The hydraulic on/off valve on my 51 w/ the Freeman loader is a h2o faucet. When information technology started leaking, I got out the same packing material used in a water faucet, which I had in the shop. It was Teflon. Information technology didn't work. But, looking deeper in the box, I found the erstwhile style string packing & it works merely fine. My guess is the Teflon didn't similar the hydraulic fluid & might not like gasoline.

50 Tips

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Dunk

xi-24-2007 xix:23:36

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Re: Fuel Shut off Valve Problem in answer to Bruce (VA), 11-24-2007 xviii:57:xi

Thank you, Bruce!!

I remember I would be looking for the original graphite impregnated cotton mop cord likewise.

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Dunk

eleven-24-2007 xviii:49:06

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Re: Fuel Shut off Valve Problem in reply to Douse, 11-24-2007 xviii:41:33

Simply remember the more you lot tighten it, the harder information technology will exist to turn y'all thumbscrew.

You lot are looking for the place betwixt no leak, and not rubbing a blister on your thumb turning it.

In other words, don't just honk information technology down, it may make your knob very hard to turn if also tight.

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Scott1ky

11-24-2007 18:51:39

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Re: Fuel Shut off Valve Problem in reply to Dunk, 11-24-2007 18:49:06

Cheers Dunk.. Well it was seized up when I first put the tank back on.. I had to employ a pair of pliers to get information technology to plow to open, then the fuel just dripped into the sediment bowl slowly.

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Dunk

11-24-2007 19:03:xix

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Re: Fuel Shut off Valve Problem in reply to Scott1ky, 11-24-2007 18:51:39

Later a total reread of all of that, if y'all aren't talking about it leaking fuel out on the engine, and yous are talking about it not stopping the flow of fuel to yer carb.

That is a whole unlike matter.

The screen is probably missing from information technology inside the tank, and it is probably full of rust, that can be a booger to clean out of it.

Y'all will take to drain the tank, and unscrew the bowl assembly out of it, disassemble it, and clean the rust out of it.

An air compressor, blow gun, and a small ho-fabricated wire option may come in handy in that location.

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Scott1ky

11-24-2007 19:x:xv

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Re: Fuel Close off Valve Trouble in answer to Douse, 11-24-2007 19:03:19

seems like I take both issues.. information technology leaks out from the close off and it is dull dripping into the sediment bulb, which probably also ways it is slow going to the carb, although it ran fine for a short distance.

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Dunk

11-24-2007 19:12:28

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Re: Fuel Shut off Valve Trouble in reply to Scott1ky, 11-24-2007 xix:10:15

It is very possible that you have both issues, I have been there, and done that.

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Dunk

11-24-2007 xix:19:44

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Re: Fuel Shut off Valve Trouble in respond to Dunk, 11-24-2007 nineteen:12:28

Oh, BTW, mine nevertheless doesn't have a screen in the tank (information technology likewise doesn't accept a screen on the carb elbow similar it is supposed to)(the but one is in the basin).

I cleaned the tank really well though, while I had the hood off, and soldered up a agglomeration of pin holes on the bottom.

Proceed it full of gas, and it won't go along to rust as bad.

I run mine with the valve fully open up, so that any h2o that condenses in the tank, goes on thru it.

I don't get very far from the business firm to need a reserve, and I check that I have enough fuel before starting out.

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I doubt it..John,PA

11-24-2007 18:xvi:15

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Re: Fuel Shut off Valve Problem in answer to Scott1ky, 11-24-2007 18:04:02

I actually doubt that you can change the fuel shut-off valve assembly without draining the tank.

I would check the packing nut around the valve stem. You might have to torque the packing nut a little. Still, if the packing is worn out, a new valve assembly will be in club.

My 9N had a tapered valve stem with a spring and nut on the side opposite the stem screw. Once an awhile the brass tapered stem would become a picayune dirty and I used to remove the valve and clean every part and reassemble. hth
John,PA

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GB in MT.

11-24-2007 eighteen:07:31

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Re: Fuel Shut off Valve Problem in reply to dlplost, 11-24-2007 18:04:02

Scott;

Correct behind the valve handle , there should exist a nut. Tighten that a piddling and see if that takes care of the leaking shutoff. That nut is the control for the gland. If it comes loose, it alows gas to follow the threads.
That should take intendance of ya.
Do non tighten information technology too tight.!! you will strip the seat.

Gary

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Scott1ky

xi-24-2007 eighteen:13:33

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Re: Fuel Shut off Valve Trouble in respond to GB in MT., xi-24-2007 18:07:31

Cheers Gary I will endeavor it tomorrow. Now's ane of those times I wish my tractor was right outside in a heated shed, I could go outside and try it real quick. Instead it's across town in a cold barn.. Oh well maybe I can get out there tomorrow. Thank you again.
Scott

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soundguy

xi-24-2007 21:xix:thirteen

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Re: Fuel Shut off Valve Problem in reply to Scott1ky, xi-24-2007 eighteen:xiii:33

You tin can too apply an air nozzle to backpressure the fuel tap in case sediment has rested on the acme screen and pickup tubes.

soundguy

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