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Doubletrouble

Briggs advise needed

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Doubletrouble

I have a '79 C-111 I am trying to get up and running before winter gets here but I have a couple issues.

1. The carb leaks gas into the intake, could this be as simple as the float being out of adjustment or will I have to do a rebuild and if so how much do you think a rebuild kit would cost for this carb?

2. The PO apparently had an issue with the threaded pipe that was used for the exhaust and boogered up the threads real good. The block does have 2 threaded holes next to the main ex. port. Is this for a bolt on manifold? Where could I find one and were they commonly used on these engines? Are they expensive?

Thanks for the help in advance!

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Shuboxlover

The rebuild kit for my 16HP briggs was substantially more than the ones I have bought for my Kohlers.

I think the Briggs one was around $30....the Kohler was $10

That being said, I would put the kit in it anyway, that way you know it's good. More than likely it will fix your issue.

As for the exhaust, is there a pipe nipple sticking out of the exhaust port? If so, just buy a muffler (or something similar) and clamp right over it....problem solved

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Doubletrouble

Shuboxlover,

The pipe nipple that should be sticking out of the block isnt there. I tried a couple of different sizes but the threads are so messed up that nothing will thread into the block anymore. I was curious if Briggs ever used a pipe with a flange on it for the exhaust. If so, where I could get one. I did some checking on Partstree.com and they listed one for a 252417 Briggs motor (which is what I have) so I'm guessing that should work.

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sgtsampay

Hello. The two holes on the exhaust port should be threaded for an exhaust flange that a mufffler could be fitted to. Here is an idea that i just came up with. On a twin briggs exhuast system, there are two pipes with flanges on them. Mabye you could take one of them and mount it to the exhaust port on your current 11hp and then clamp a pancake muffle or something else. Heck, I wander if a Kohler muffler system from other horses would fit as they used flanges as well.

Now for the carb issue, yeah that sounds like a stuck float issue, as carb will put gas into the intake normally but it should be so little you wouldn't even notice it. So, you seeing gas there is meaning the carb is getting to much gas and this normally happens by having a stuck float as the float will keep drawing gas from the tank so the excess has to go somewhere and the other issue could be some block passage ways, blocking air from getting into the carb to mix with the fuel, making the fuel air mixture to rich.

Well, those are just my thoughts and if I'm wrong someone please correct me! I love learning new stuff. HEHE.

Ether way, good luck and let us know what you fine.

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SousaKerry

You can always run a pipe tap into the hole to clean up the threads a bit. you should be able to find a flanged muffler through any power equipment dealer or a "farm store"

don't forget that the flanged muffler will require a seal also. If the threads for the flange have never been used more then likely they will need to be re-taped also.

Or you could save yourself a whole heck of a lot of trouble and throw the Briggs in the Scrapiron and buy a Kohler :thumbs2: :banghead:

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Doubletrouble

I'd like to have Kohler's on both of my horses simply because parts are more available it seems but to get a vintage cast iron Kohler is an expensive ordeal. I'll just run what I have for now I guess, lol.

I removed the carb today to try and adjust the float level with no luck. I dont have any kinda of "spec" for the float level so I tried to just eyeball it. I did set it to where there would be a bit less fuel in the bowl but it still soaked the inside of the intake. Everything seemed to move freely and I did clean things out good with carb cleaner when I had her apart. Float seemed to be in good shape. I'm thinking that the float is either "fowling" on something making it stick or the gasket is not sealing and allowing gas to leak through to the intake runner. I'll be picking up a few parts here soon and try to get this issue wrapped up so I can move on to the other things she needs.

Thanks for the advise thus far!

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can whlvr

i was able to too find a flange at a muffler shop,it was like 5 bucks

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Doubletrouble

I'm gonna check with a local mower shop (since he displays a wheelhorse banner on his shop) to see if he has something I can put on there to attach the muffler to.

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Doubletrouble

I tinkered around with the carb today and got her to run a little better after playing with the mixture screws and tightening the top screws on the carb. The throttle shaft is still leaking a bit but I checked on partstree and didnt see any kind of seals for this. It doesnt leak bad, just a lil damp around the sides.

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rick

The threads in the exhaust port on my C111 are messed up, too. Before I give it to my oldest daughter, I am going to put a Briggs 691874 muffler and 795036 deflector on it. The enhanced engine movement created by the isolator mounts will shake the piped exhaust systems loose. Just my idea, anyway.

While a B&S engine may not be at the top of the pile, I hate to see them crapped on. Properly maintained, they will last a long time.

I remanned the 252417 engine on my C111, and have no trouble pushing snow off our 3/4 mile graveled drive.

Your fuel leak may be caused by a float related issue, or a leak where the nozzle seals to the body of the carb. I have a slight problem at the nozzle, and I have a new OEM carb installed. This is a problem with the design of the carb. A thin teflon washer may help, but I have never bothered to look for one of the size needed.

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Doubletrouble

Thanks Rick. I'll check into a muffler set up like you mentioned. I pulled my carb apart the other day and set the float, I think that is ok now. Just have the leak around the throttle shaft so for now I will just live with it I guess. The last time I had it apart I managed to goof the threads for the main jet. (that you have to remove before splitting the bodies) So a rebuild will probably require and new carb half. (DAM)

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smoreau

I'm thinking that briggs had both pipe thread and bolt on mufflers. I believe :dunno: used the pipe threads like the ones on most kohlers. As for the carb leaking fuel into the intake. sounds like a carb overhaul kit is in order. check the float to see if it has fuel inside of it also could be the cause.

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aeallison

I know this thread is getting a bit old but I can't help but to add my $.02. If you used a really good carburetor cleaner like Barriman's << spelling? you may have damaged the possibly already worn rubber seat for the needle valve operated by the float. If the seat is not working like it should then adjusting the float will have very little to no effect. The leakage at the throttle shaft is an indicator of fuel leakage due to too much fuel in the bowl. If you allow this to continue then before long that nice cast iron Briggs motor will need an overhaul too. :wh:

As one of our members famous mantras states: If you don't have the time to do it right, when will you have time to do it over? :dunno:

Good luck.

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Doubletrouble

Good point aeallison.lol

I did manage to get the fuel to quit leaking. I pulled it apart one more time and adjusted the float again and it seems to be ok for now. I do plan to rebuild the carb in the spring. I also figured out my exhaust issue. My buddy was over a few days ago and we were standing over the c-111 talking about what I need to do to get her up and running good. The exhaust issue came up, he grabbed a peice of 3/4 threaded pipe and somehow it threaded right in for him! I felt like a total idiot! :dunno: Good news is that it threaded in enough that I wont worry about it falling back out. Now to patch up the muffler and replace the battery. I think thats it. :wh:

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Buckshot 1

:wh: A little trick my Dad taught me, on pipe threads either straight/tapered, turn the male end counter clockwise a bit and it will center in the threads, then thread it in. :dunno:

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Tankman

Any printed instructions for setting the carb on the Briggs 16 hp 2-cyl Vanguard engine?

 

Need to work on the carb, cleaning didn't seem to help too much. I can run the engine as long as I keep spraying carb cleaner down the throat. Not a carb guru but managed to clean 'n set up the carbs on my Kohlers easy enough.

 

This Briggs carb is drivin' me nutso.   :eek:

 

What does the solenoid on the carb do? Is it necessary? Or, can I just plug the hole and run without the solenoid?

Edited by Tankman

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Martin

Tankman, I had a similar issue with the briggs 18 twin on my gt1848. Fuel pump on carb was the problem. Not sure if the vanguard is the same as the IC engines or not.

Sent from my iPhone using Tapatalk

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Molon_Labe

That solenoid on the Briggs carburetors is the anti-backfire solenoid. When the key is on it opens allowing fuel to flow. If it's bad or not getting power that could be your fuel problem. I've never tried it but you could probably cut the needle off the end of the solenoid and just screw it back in.

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Tankman

Thanks! The solenoid was the problem. Briggs is running great!

  • Like 1

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Molon_Labe

Glad you got 'er going!!

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Tankman

Glad you got 'er going!!

Thanks again.

 

When I pulled the solenoid, I saw a small rubber tip on the shaft. Problem solved and, the grandsons thank you too! They were ridin' on cloud nine!   :laughing-rofl:

  • Like 1

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Molon_Labe

Thanks again.

 

When I pulled the solenoid, I saw a small rubber tip on the shaft. Problem solved and, the grandsons thank you too! They were ridin' on cloud nine!   :laughing-rofl:

 

Glad the kids had the opportunity to ride grandpa's tractor. I know that mine love to ride my :wh: , all 13 of them!! Grand kids that is.

Edited by M_Bailey

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