Hi, i've got a crafstman 4 cycle snow blower that i picked up off the curb for free. I put fresh oil in it and a new spark plug and got it running. After it warms up it starts to blow oil out of the breather tube and smoke when it hits the muffler. The breather tube is not connected to the carburetor. Its supposed to be like that. I dont know what to do. Its a briggs model 9A413. Any suggestions?

 

Post the model numbers for the engine and snow blower, usually the breather tube goes somewhere so the blow-by can be re-burned for emissions reasons, however snow blowers may be different. Have a good one. Geo

 

It could be worn out rings/cylinder, plugged crankcase vent, or blown head gasket.

 

You are missing a number and the type number. Can't look it up without the proper numbers ~!~!

 

Sounds like the person putting the blower out at the curb knew the engine was toast. You can do a compression test and check the reading against the spec for the engine. My guess is it is low. If it blows snow, I would not do anything except check the oil level frequently when in use. Sure beats a snow shovel.

 

Model is 09A400 and type is 0202. Compression is about 120. Blower model is 536.88150

 

Sorry i typed it wrong again, model for the engine is 09A413 and type is 0202

 

120 is good on compression. Is that taken after warm up and the oil blowing is going on?

 

No, thats was when the engine was cold before i even tried to start it.

 

Since you got it from the curb you don't know if it was turned upside down side ways or bounced down the street so since you know the oil level is ok and it doesn't knock and bang let it set and run, it will probably clear itself up. Have a good one. Geo

 

It seems like I was speed reading when I saw your 1st post. I also do the LA Times crossword puzzle and bebop between the 2 of these posts.

I looked at your 1st post real good. I agree with Geo on the tube !!!

It seems you are missing the rubber boot or hose that connects the tube to the carb.

I am not familiar with snow blowers. But all briggs have a breather to the carb. Do you see a small aluminum pipe ? There is a rubber hose that connects to that.

Hope this helps !!!

 

Ok, so i ran the blower for a good 5-7 minutes and its still spitting oil. The only thing on the breather is a little elbow tube but thats it. Just to clarify, the exhaust is clear and nit smokey. Its just the breather thas spitting oil

 

The IPL shows the breather tube and a grommet on page 2 on a mower that tube and grommet would go to the air filter housing, however since most snow blowers don't have air filters I have no idea. Have a good one. Geo
The IPL
http://bsintek.basco.com/BriggsDocum...EXBnfBhU7y.pdf

 

The aluminum tube that comes from the valve cover area is kind of S shaped. There is a rubber elbow that connects to your carb. On a regular mower it connects to the air filter on some models with a bowl type carb like you have. On a pulse jet carb it attaches to the carb itself. If you have oil spitting out then you dont have the rubber elbow or tube to make the connection. Can you post a picture ??

 

Thanks Geo.

The tube I referred to is # 11

The elbow is # 529

529 connects to your carb or something attached to your carb.

I think you are missing something that goes on your carb. Since you picked it up from the curb it is possible that something is missing.

 

Ok. I didnt realize it had that peice. I will look for a replacement but i noticed there is no place on the carb that the tube would connect to. As you guys said, the tube normaly connects to the carb or air filter but there is no noticable hole. Is it possible the breather is faulty? I will try to post some pictures later

 

No it's not faulty that tube sends it to the carb to reburn.

 

Ok. I think i have some parts in my shed that will work. If not ill go buy one. Do you know where the tube hooks up to the carb? I didnt see a spot it would hook up at

 

I think you are missing something that goes on your carb. Since you picked it up from the curb it is possible that something is missing.

A picture will help a lot ~!~!

 

OK I got it figured out. I looked at the rubber grommet real good. It slips on the # 11 then it goes into your intake. The way it's made it has a double flange on one end. Your intake is #50.

You have to take the shield off too have access to the intake. When you are looking at the carb the hole will be on the left toward the bottom on the intake.

Woweee what a workout on the brain. But it's done ~!~!

 

Does this engine look like yours ??

Briggs Stratton Murray Snowblower Engine 09A413 0202 | eBay

 

Thankyou. I will take the peice off to get to the intake. The engine you sent me is identical to the one in my snow blower

 

Good deal the picture will help if you have any future ??'s

Let us know ~!~!

 

if this picture uploaded, it is of my intake and carburetor. there is no place for the tube to connect to. i checked the bottom right side and there was nothing

 

Ok your other right Lol Take your carb off and the shield. It looks like you don't have the tube.

Like I said before we don't have sneaux in Cajun Country.

I think there is a hole on your intake that the breather tube attaches to. I am in a rush supper is ready ~!~!

 

I imagine what you have is all there is on that one. For something that would connect up on a lawnmower you would have the air filter. On that engine you just have the black plastic intake cap to keep out the snowballs. Snowblowers don't have the air filters since there a lack of airborne dirt/dust, etc in the winter and an air filter will plug with ice crystals, then freeze solid after use. In Iowa never saw air filters on those things.

As far as the oil, there could be something in the breather not quite right but a little oil could come out of it. Other things that may affect it would be oil level or excess crankcase pressure from worn rings or leaking head gasket. With the 120 compression and no noticeable oil burning there would be a less chance of those things contributing.

Another thing to consider would be the size of the breather outlet. That is something that may be difficult to feed into an intake on the down stream side of the gas venturi. That much air would cause problems with getting a good running engine without some type of metering device. On a car you have the PCV valves.

On that engine the only place you feed that much crankcase gas would be in the outermost throat of the carburetor. That's is likely all set up with the air filter assemblage which you wouldn't have on that engine.

 

Something is telling me there is a problem inside the breather that is letting the oil get out. I picked up a mower once that had been filled with oil to the top of the dipstick and then started, it was a mess. After I got all the oil out and everything cleaned up any time I tilted the mower it would dump oil out of the breather, maybe that is what happened at some point. Have a good one. Geo

 

I agree with Mar on the vent going in after the carb. I didn't think about that. It might be a bad breather.

What is the code number ? all I need is the first 4 or 5 out of the 8 numbers

 

Code is 040426ya. Oil level is not overfilled.

 

Ok great your engine was made in 2004 you don't need the breather tube. Your breather part # is 699448 for that year.

 

Glad to hear the whole tube thing is figured out. The part number you sent me, is that the breather its self? If so are you saying i need a new breather?

 

Bondy, I didn't mean yours was overfull, I meant it may have been overfilled at some point and the breather could have been damaged, or it could be full of crud and or whatever....it just isn't working properly, someone will find out why. Have a good one. Geo

 

Got it. If i take the breather off to investigate it if that is supposedly the culprit, is there a way to check if its good or bad?

 

Maybe it's just the Gasket that has succumbed and is allowing oil, under pressure, to spit out ?

The Breather itself isn't much for being serviced; I think the "one way" diaphargm is either plugged or broken. If it were plugged you wouldn't be getting leakage "thru" it; and if it's broken, the whole Breather usually has to be hareplaced.

I've soaked some breathers in gasoline and think I cleared them of some crud that had collected inside the tiny diaphargm holes; but I think my blockages have been inside the Tube itself.

I suspect your Gasket is leaking and allowing Oil to escape through it.

 

Yes but its not leaking through the gasket. Its spitting oil out the breather tube. If there is nothing else that could cause the problen i will replace the breather.

 

Does the Breather Tube have a crack in it ?

It may not open up except under pressure from the crankcase.

 

As i said before, it doesnt have a tube, just a little rubber elbow pipe and that is not cracked

 

yep just the breather with the grommet sticking out going to nothing. I think something goes in the grommet and goes somewhere.

Bondy do you have a repair shop nearby that you can look at one similar to yours ? or ask them if you are missing a part.

 

Here is a little video about the breather, yours is probably shot. Have a good one. Geo

https://www.youtube.com/watch?v=8qQLOWKzkHw

 

I wonder where the OP got the idea that "It's supposed to be like that" ?

It wouldn't be spitting oil onto the muffler if it were properly directed into the carburetor or the intake manifold.

I don't think it's supposed to be like that . . . . and a new Breather is still going to have to have what it collects somehow directed toward the intake manifold.