All-Terrain Lawn Tractor Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.

All-Terrain Lawn Tractor Forum

Like riding lawn tractors through mud, woods, rocks, and snow? Then this is the place for you! Share your ideas, Post your projects and more!
 
PortalHomeSearchRegisterLog inTop Tractor Challenge

 

 B&S flathead carburetor problems

Go down 
5 posters
AuthorMessage
crafsmankiller
Screwdriver
Screwdriver



Age : 24
Join date : 2012-10-18
Posts : 412
Forum Rep : 0
Location : livingston texas

B&S flathead carburetor problems Empty
PostSubject: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeSat Dec 27, 2014 9:21 pm

On my mower i have a 1983 briggs 8hp flathead , even tho it burns a crazy amount of oil it runs good and strong. Recently a prolem has developed with the carb . When i puy the fuel bowl on with no gasket it pours fuel out around the top of the bowl amd when i put a gasket on it it floods the carb and the engine wont run. I made a gssket and the same thing happened. Im getting really frustrated and pi$$ed at this carb. Its a onepiece flow jet with both mixture screws and idle adjust.
Back to top Go down
willis923
Hammer
Hammer
willis923

1000 Posts
1K Posts!

Age : 25
Join date : 2013-04-10
Posts : 1408
Forum Rep : 0
Location : Galway NY

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeSat Dec 27, 2014 11:52 pm

damaged needle/seat or stuck/damaged float.

_______________________________________________
-1974 bolens 1055 (Rolling Thunder)
-1989 Craftsman GT6000 (Blockhead)
-2004 Ford F-250 super duty FX4
-1999 Ford F-350 Superduty 4x4 7.3 Powerstroke


Lt wrote:
Feel free to try... Dont let anything but fear and common sense stop you. 


B&S flathead carburetor problems Pbucket

Chat moderator

1st Lieutenant, Volunteer Firefighter, EMT-B, Galway Vol Fire co. Galway NY
Back to top Go down
crafsmankiller
Screwdriver
Screwdriver



Age : 24
Join date : 2012-10-18
Posts : 412
Forum Rep : 0
Location : livingston texas

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeSun Dec 28, 2014 10:12 am

B&S flathead carburetor problems 2429134702 B&S flathead carburetor problems 2429134702 i didnt even think about a damaged needle or seat. I know that the float works fine.. i guess it catchin on fire coulda damaged the needle seat. How can i fix it or do i have to get a new carb.
Back to top Go down
mr.modified
DimeWeld
DimeWeld
mr.modified

1000 Posts
1K Posts!

Age : 31
Join date : 2013-11-02
Posts : 2833
Forum Rep : 127
Location : New Jersey USA

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeWed Dec 31, 2014 7:58 pm

I think it's just a metal seat on most briggs stuff (part of the carb body I think). Just write down your model, type, and serial number and head to your local mower shop. Shouldn't be a big deal to get a new needle. Might have to get a whole carb kit. Sometimes it doesn't take much to mess them up. I've had a lot of carb situations where everything looks perfect, but still doesn't work. Look at everything real close. Maybe just a piece of dirt or something holding the needle open.
Back to top Go down
Doc Sprocket
Administrator
Administrator
Doc Sprocket

1000 Posts
1K Posts!

Age : 48
Join date : 2013-04-21
Posts : 2911
Forum Rep : 20
Location : Ontario Canada

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeWed Dec 31, 2014 11:56 pm

Closer inspection should reveal the truth. it is probably a pressed-in brass seat, which is generally not easily damaged. More likely it's the needle, which very likely features a viton tip. Damage here, is predictable. Do note that SOME needles actually feature a spring-loaded plunger, and these can crap out too.

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***
B&S flathead carburetor problems Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- https://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- https://www.atltf.com/t2153-lawn-boy-utltv
MULEII- https://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII https://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
crafsmankiller
Screwdriver
Screwdriver



Age : 24
Join date : 2012-10-18
Posts : 412
Forum Rep : 0
Location : livingston texas

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeThu Jan 01, 2015 1:21 am

Ok. I checked it all out today and looked over it very carefully and very close. Retested the needle operation and it works when i test it, retested to see if the float still floats and it still does. I preciate yalls help but im at a loss here. It worked fine with and without gaskets until it burst into flames last month. Ill try to find the mode and part numbers and get to a mower shop, the only problem is the local mower shops have idiots runnin them and idiots workin there that dont know a thing about mowers. Needless to say, their useless. Ill probably go to a junkyard and get a carb and/or another engine. Again, i preciate the help.
Back to top Go down
Doc Sprocket
Administrator
Administrator
Doc Sprocket

1000 Posts
1K Posts!

Age : 48
Join date : 2013-04-21
Posts : 2911
Forum Rep : 20
Location : Ontario Canada

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeFri Jan 02, 2015 1:21 pm

Since I cannot see this unit myself, I am stuck guessing. Based on the gasket comments, I'm pretty convinced the float is getting stuck. Something must be cocked out of alignment or something. These carbs are simple, not much at all to them.

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***
B&S flathead carburetor problems Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- https://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- https://www.atltf.com/t2153-lawn-boy-utltv
MULEII- https://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII https://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
mr.modified
DimeWeld
DimeWeld
mr.modified

1000 Posts
1K Posts!

Age : 31
Join date : 2013-11-02
Posts : 2833
Forum Rep : 127
Location : New Jersey USA

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeFri Jan 02, 2015 8:09 pm

I didn't think they had those rubber tipped needles on these back that far (1983). I could be wrong though. Who knows. It might be less of a pain to just get a different carb if you can find one easily.
Back to top Go down
crafsmankiller
Screwdriver
Screwdriver



Age : 24
Join date : 2012-10-18
Posts : 412
Forum Rep : 0
Location : livingston texas

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeSat Jan 03, 2015 12:24 am

Its definately all metal carb. My grandpa was the best lawnmower mech in the area and he taught me everything i know.im sure he coulda figured it out by now tho. Ill get some pics and possibly a vid of it if weather permits. Im gonna look at it again but im seriously stumped on this. And your right mr. Mod, no rubber tipped needle. Ill try bending the tab the needle rest on to see if it works cause the needle may not be rising high enough. This things got us all buggered. Even tho i beat the crap outta this engine it has sentimentel value and i wanna keep it alive and runnin long enough to give it to my kids or hand it down ya know... as a heirloom or somthin. And if it sounds stupid just tell me
Back to top Go down
crafsmankiller
Screwdriver
Screwdriver



Age : 24
Join date : 2012-10-18
Posts : 412
Forum Rep : 0
Location : livingston texas

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeSat Jan 03, 2015 1:01 pm

http://fuel-efficient-vehicles.org/energy-news/?p=1310
http://fuel-efficient-vehicles.org/energy-news/?page_id=968
Im gonna try to use this to run my engine until i get the carb fixed.
The second link is the main article. And guess what, he has a snaper with the same model engine most of us use. So its gotta work if we do it.
Back to top Go down
crafsmankiller
Screwdriver
Screwdriver



Age : 24
Join date : 2012-10-18
Posts : 412
Forum Rep : 0
Location : livingston texas

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeThu Feb 26, 2015 3:46 pm

so, i found out the problem. the float had liqiud in it but not enuf to make it sink, so i, guess what, i poked a hole in the float to drain the liqiud out, and i poked the whole in the top of the float, so now im lookin for a float. but i have a question, can i smear a little bit of jb weld over the hole to patch it? if i can im gonna try that and hope it works.
Back to top Go down
Thecrazyoldcraftman
Forum Newbie
Forum Newbie
Thecrazyoldcraftman


Age : 24
Join date : 2013-05-27
Posts : 79
Forum Rep : 0
Location : San Antonio

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeThu Feb 26, 2015 4:38 pm

that might work until you can find a new float but still keep an eye out for a new float, also adjust the needle to be a bit higher when the old float is down, the added weight of the JB will make it float lower
Back to top Go down
Doc Sprocket
Administrator
Administrator
Doc Sprocket

1000 Posts
1K Posts!

Age : 48
Join date : 2013-04-21
Posts : 2911
Forum Rep : 20
Location : Ontario Canada

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeThu Feb 26, 2015 8:04 pm

@crafsmankiller wrote:
so, i found out the problem. the float had liqiud in it but not enuf to make it sink, so i, guess what, i poked a hole in the float to drain the liqiud out, and i poked the whole in the top of the float, so now im lookin for a float.  but i have a question, can i smear a little bit of jb weld over the hole to patch it? if i can im gonna try that and hope it works.

It might. Is it brass or plastic? In the past, I have saved brass floats by desoldering the halves, draining, and resoldering.

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***
B&S flathead carburetor problems Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- https://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- https://www.atltf.com/t2153-lawn-boy-utltv
MULEII- https://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII https://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
crafsmankiller
Screwdriver
Screwdriver



Age : 24
Join date : 2012-10-18
Posts : 412
Forum Rep : 0
Location : livingston texas

B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitimeFri Feb 27, 2015 8:40 pm

its a brass float, I already adjusted the needle up farther, and I would do the soldering trick except I don't have the provisions for that. but im definitely lookin for another float, maybe a whole carb, or better yet, a engine.
Back to top Go down
Sponsored content





B&S flathead carburetor problems Empty
PostSubject: Re: B&S flathead carburetor problems   B&S flathead carburetor problems Icon_minitime

Back to top Go down
 
B&S flathead carburetor problems
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
All-Terrain Lawn Tractor Forum :: Technical Forum :: Engine Tech :: Briggs and Stratton-
Jump to: