600 Gas Shut Off

Hobo,NC · Jan 23, 2009

Been fudgen with this beast 'bout all winter,,, man verses BEAST,,, went thru new a replacement it leaked,,, found the tank leaked were the shut off valve mounts to the tank,,, never could solder it so did the por 15 thang,,, I had a original nice shut off BUT the shut off was so loose the vibration would back it out and restrict fuel flow,,, never could figger out what to do to help that SOOOOOO I backed the screw out and put some blue loctite on it, ran it in and backed it out a turn and a haft,,, its locked in place so the best I could come with was this shut off at the carb,,,, mite would of tried to git it in the original line but it it did not go well I did not wanna pull the tank off to replace the fuel line,,, I have a NAPA # A6765 shut off, one 8" 1/4" fuel line and a 12" 1/4" line and union,,, hope I am done with it,,, would not have messed with the different steel lines but I could not find the line nuts local so had to chop up some for the nuts

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souNdguy · Jan 23, 2009

Looks fine to me.

As long as you can slip the glas bowl out for service should be good.

I use a similar brass valve like that on my 850 after someone had pulle dthe entire fuel line off and farmerized it real bad.

soundguy

Anonymous-0 · Jan 24, 2009

You can replace the O ring. there is an aluminum stop pin that keeps the valve from being opened too far.Drill out the stop pin.Replace the stop pin with a sheet metal screw.I found another fix that I wont use again.Put 2 oz of Marvel Mistery oil in the gas tank.This will swell up the O ring so bad that it takes big screw driver to open the valve.I had to put a 1/2 hole in the edge of the hood so I could get a straight shot with the screw driver.It took so much effort to turn the valve I was afraid the valve head would split.It took a full year before I could open the valve with fingers one full turn.The tractor runs fine with one turn .I have posted this problem here and it brings out the MMO nuts.They get pretty wild when you post a problem with MMO.It will fix a loose gas valve on a 600.

Hobo,NC · Jan 24, 2009

The OEM valve on this'n is not the o'ring type,,, it has a nut the pin goes in with a T Handel,, after I locked it down the thought hit me to add a little extra weight to one side of the handle,,, The owner came by to pay up late yesterday and liked my banjo work,,, thats what counts

The one that was on it was they type you speak of and worn slap ares out,,, the replacement also leaked then I stripped the line nut threads out cuzz I thought the leak was at the line,,, nope it was were the valve was soldiered in the tank rite above the valve,,, I made a post will C if I can find it

Bob in SD · Jan 29, 2009

Thanks,

I drilled out the stop tonight. I'm not sure how "fuel resistant" my bargain box of O-rings are. Luckily I didn't have any quite the right size, so I wasn't tempted to put 'er back together tonight. I'll hit NAPA for the O-rings tomorrow and try to decide what to do with the fuel lines -- I've got to change sizes on the way down since it starts at 1/4 and ends bigger.

I was thinking I'd have to tap to put that stop bin back in, but a sheet metal screw might do 'er. I'm new at this old tractor stuff and couldn't find a single SAE tap in my garage. Lots of repeats in the metric sizes, but no standard. It almost seems sacrilegious to put a 5 x 8.0 metric bolt on such vintage American iron.

Thanks for all the ideas and advice,

Bob

Hobo,NC · Mar 1, 2010

(quoted from post at 13:01:35 01/24/09) You can replace the O ring. there is an aluminum stop pin that keeps the valve from being opened too far.Drill out the stop pin.Replace the stop pin with a sheet metal screw.I found another fix that I wont use again.Put 2 oz of Marvel Mistery oil in the gas tank.This will swell up the O ring so bad that it takes big screw driver to open the valve.I had to put a 1/2 hole in the edge of the hood so I could get a straight shot with the screw driver.It took so much effort to turn the valve I was afraid the valve head would split.It took a full year before I could open the valve with fingers one full turn.The tractor runs fine with one turn .I have posted this problem here and it brings out the MMO nuts.They get pretty wild when you post a problem with MMO.It will fix a loose gas valve on a 600.

Rebuilt the shut off on my 850 today,,, like coupe posted you can replace the o-ring,,, the stop pin in mine was steal,,, I drilled it with a small bit then finished the job with a 1/8" drill bit and dug the pin out,,, the pin was 1/8" and not quite 3/8" long (.350) I had to drill into it about 1/4" before it broke free so I could fish it out,,, used a -009 ring for the replacement,,, it was not as tight as I wanted it but did not leak so went to my AC o-ring kit and found one fatter Captive #108 (AC o-ring mite not be EZ to locate),,, Tapped the stop pin hole 10-32 and used a 10-32 X 3/8" screw and washer for a stop pin,,,,Used a -115 o-ring valve to tank,,, seems to work great,,, hope this helps

Hobo,NC · Apr 12, 2011

pix of the original fuel line

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Detmurds · Apr 12, 2011

Isn't it a gravity feed fuel system? That loop-line around the bowl looks a little wild,...but if it works,...so be it?

Hobo,NC · Apr 13, 2011

someone needs to add a link to a post were some re-route the line so folks will have that option,, one i would not rule out,,, one i would try maybe on the next go at this... question why the loop,,, i wanted some support, a bracket to nail the line,,, best i could come with at the time...

i have tricked a few out like this no problems other than on my 850. it does stall out every now and again,,, i am sure its a fuel flow issue... i have not needed it so have not took the time to check that issue,,, 2 many logs on the fire at this time to play with it

Hobo,NC · Apr 14, 2011

I am going to trick out my 850,,, re-rout the fuel lines would someone post the pixs of were they ran them toward the front...

600 Gas Shut Off

Hobo,NC

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souNdguy

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Anonymous-0

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Hobo,NC

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Bob in SD

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Hobo,NC

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Hobo,NC

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Detmurds

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Hobo,NC

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Hobo,NC

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