Leaky Carb.

Anonymous-0

Well-known Member
My carbruator is leaking from the small weird-looking disc on the bottom of the carb. Is there any way to tighten this??

Thanks, Joe
 
you could pry out the sinsterized bronze and put a plug in it with enough work.. but you's be defacing your carb.

that's a drain that is suposed to stay open and let fuel leak outif there is too much in the wrong place.

if yours leaks.. perhaps you have choked it too much or the flaot/valve needs attention as it is flooding.
 
Soundguy;

I hadn't tried to start the tractor yet. I had just turned on the gas valve and it immediately started leaking from that little plug-thingy.
But I definitely will check out the float and valve assy. Thanks for your help.

Joe
 
As sound said that is pretty much a device in the carb to make sure if flooded it will drain so you can start it once it has drained. You may have a float problem or you could also have a little dirt/rust in the needle seat causing that. If dirt etc some times pulling the carb drain plug is enough to let ti flow out and then the float work just fine again
 
Thanks Old - I'll check and see if the float is working like it should. I had the carb apart last week and the float didn't seem to have any fluid in it, so I'll have another look at the seat and valve.

Appreciate your help. Joe
 
screw the main needle all the way out.. open the bowl drain and let some fuel drain into a cup.. shut off tank tap.. use a straw on the end of a carb cleaner spray and give a few blasts at the main needle hole ( cover eyes ).. and then remove fuel line from carb and give some blasts there till it drips at the bowl drain. put back together and turn fuel on.

may have been crudded up float. if that don't fix it.. time to kit it.
 
cheapest anyway. good luck.

post back if you hit a snag.

many people can help you kit or set a carb.. and if the carb is extra cranky.. there is a carb expert here named GB, plus a few pro mechanics and NH parts men/mechanics that can help.. plus us regular old iron mongers...
 
Joe........its supposed to leak there. Up-draught carbs are weird. Yer 2-chamber float is supposed to seal the needle valve, but many times the BEHIND the float valve seat LEAKS. Ya really gotter whomp down on the float seat. You need BROAD HOLLOW-GROUND gun-smithing screwdriver that will fit BOTH slots at the sametime. Most broad screwdrivers are "V" wedge'd shaped and waller out the notches of the seat. Some use a broken bitt of hacksaw blade in a "VISE-GRIP" and use that to tighten the float seat. (tip: hold the broad V-bladed screwdriver to the side of yer 6-in bench grinder, and mak'er "hollow-ground"; simple, eh?)

BTW.....the original M/S carb drain was "felt", held in by "C"-ring. The sinstered bronze drain was a WW2 invention for fighter airplanes in South Pacific. .........Dell
 
Do not know where you are in Missouri but my e-mail is always open of you need help. I am at the lake of the Ozarks
 
OT: Dell.....I know a retired WWII airplane engineer, Mr. Bill Ford, who discovered this:

The landing gear was initially so "streamlined" that the landing gear would not extend until someone drilled a few holes in the "gear doors" to break the vacuum in the wheel wells. Lots of bent-up airplanes, initially. The P-51's came through with the holes pre-drilled.

John,PA
 
(quoted from post at 19:11:59 02/05/13) . I had the carb apart last week and the float didn't seem to have [b:74e3c6e618]any fluid in it,[/b:74e3c6e618] so I'll have another look at the seat and valve.

Appreciate your help. Joe

?????

No fluid is suppose to be in the float!!!
 
My e-mail is always open on here if you use modern you click on my name or if on classic you should see click on e-mail at the bottom of a post. Or [email protected]
 
Dell: Thanks for that useful info. I hollow-ground a big screwdriver and it worked like a charm. Problem solved.
I love readin" about WWII fighter planes, so it"s good to know how that little plug came about.

Thanks again, Joe
 
Oh so your over there in the swamp land area or maybe where it likes to shake once in a while. So yep a good 200 plus miles from me
 

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