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I've got a TORO Lawn Mower, with a Tecumseh Engine, (LEV120, Spec 362003A)

I replaced the carburetor with an aftermarket carb, worked like a charm. Mowed most of my lawn with it, then all of a sudden POOF white smoke starts pouring out of the exhaust, gotta be a blown head gasket? That sudden? Would love to know your thoughts on what people think it is, and how hard it would be to fix?

Do you have fuel in the oil? Smell the dipstick to verify. Aftermarket carb alert here.

White smoke is water burning off. Blue smoke is oil. Just saying. What color again was the smoke?

slomo

slomo said:

Do you have fuel in the oil? Smell the dipstick to verify. Aftermarket carb alert here.

White smoke is water burning off. Blue smoke is oil. Just saying. What color again was the smoke?

slomo

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When there was a lot of smoke it seemed pretty white, but as it lessened there's definitely a blue tint, I felt like it had to be oil. Just seemed odd that I mowed most of my yard with no problem then it just started out of nowhere. I'll check the dipstick, could this be a symptom of a head gasket?

I’m in agreement with slomo on this. If your crankcase is overfilled, your aftermarket carb is the cause, which wouldn’t surprise me at all.

lacrosse_24 said:

When there was a lot of smoke it seemed pretty white, but as it lessened there's definitely a blue tint, I felt like it had to be oil. Just seemed odd that I mowed most of my yard with no problem then it just started out of nowhere. I'll check the dipstick, could this be a symptom of a head gasket?

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Could be a head gasket, sure. Hope the governor is operating proper. Were the revs waaaay too high or normal?

slomo

slomo said:

Could be a head gasket, sure. Hope the governor is operating proper. Were the revs waaaay too high or normal?

slomo

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Never too high, it definitely would stall and almost die, the oil (or whatever) seemed to burn off and it would almost be normal, but as soon as I would move it or engage the self propel POOF tons of smoke again and it would almost stall out and die.

So no over rev at all, actually the opposite.

So engaging the belt and it smokes, is this a belt issue or engine oil?

OR the oil level now possibly flooded with fuel is too high. Smell the dipstick.

slomo

slomo said:

So engaging the belt and it smokes, is this a belt issue or engine oil?

OR the oil level now possibly flooded with fuel is too high. Smell the dipstick.

slomo

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I don't think it's a belt issue, it bellowed smoke for a long time even without engaging the belt. If there is fuel in the oil, what does that mean/what needs to be replaced?

Rivets said:

I’m in agreement with slomo on this. If your crankcase is overfilled, your aftermarket carb is the cause, which wouldn’t surprise me at all.

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Not knowing much about mowers besides how to strap on a carb, how does the carb affect the crankcase overflowing with oil? Is the fix buying the OEM carb?

lacrosse_24 said:

I don't think it's a belt issue, it bellowed smoke for a long time even without engaging the belt. If there is fuel in the oil, what does that mean/what needs to be replaced?

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Again, fuel in the oil means carb needle sticking. Time to clean it or rebuild the carb.

SMELL THE DIPSTICK.

slomo

All yours slomo, he doesn’t want to check the oil, so I’m out of here.

lacrosse_24 said:

Not knowing much about mowers besides how to strap on a carb, how does the carb affect the crankcase overflowing with oil? Is the fix buying the OEM carb?

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The carb needle and seat allows fuel INTO the carb. If this needle hangs OPEN, it will eventually fill the cylinder AND get into the oil sump. Kind of works like a toilet fill valve does.

slomo

Rivets said:

All yours slomo, he doesn’t want to check the oil, so I’m out of here.

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Haha I'm not even at home right now so it'd be hard to check the oil, relax bruh

Is that some new coffee out now?

slomo

slomo said:

Is that some new coffee out now?

slomo

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Of course

Now I’m supposed to be psychic and know you’re at work, a simple I’ll check when I get home would help. It’s an L-head engine so I highly doubt it’s a blown head gasket. Coffee isn’t the problem, it’s I’ve no clue what’s going on, but I need exact answers now without doing more work on my part. Willing to bet a 631021B will solve the problem, but because i’m an old fart, who gets on your nerves, I wouldn’t spent the money trying that.

I was talking about his Bruh comment and my undisclosed stupid joke of it being some new coffee. Like some French Bruh mocha chino mess.

slomo

Rivets said:

Now I’m supposed to be psychic and know you’re at work, a simple I’ll check when I get home would help. It’s an L-head engine so I highly doubt it’s a blown head gasket. Coffee isn’t the problem, it’s I’ve no clue what’s going on, but I need exact answers now without doing more work on my part. Willing to bet a 631021B will solve the problem, but because i’m an old fart, who gets on your nerves, I wouldn’t spent the money trying that.

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Was thinking the same. An L head tossing a gasket, rare but possible.

slomo

Unless it has a gravity tank and hydrolocked then blew out the gasket .
Seen a few where the head bolts were backed off slightly but I always suspected the bolts had human help but of course the customer never touched it .

Rivets said:

Now I’m supposed to be psychic and know you’re at work, a simple I’ll check when I get home would help. It’s an L-head engine so I highly doubt it’s a blown head gasket. Coffee isn’t the problem, it’s I’ve no clue what’s going on, but I need exact answers now without doing more work on my part. Willing to bet a 631021B will solve the problem, but because i’m an old fart, who gets on your nerves, I wouldn’t spent the money trying that.

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Thanks for the help, I’m asking for advice so I’m probably going to take it, but you were making assumptions.
The problem with the original carb was....there wasn’t one. So I went with an aftermarket, I found an OEM that I’ll stick on there, and there was fuel in the oil so I’ll do a change and an OEM carb and that should do it, thanks again.

slomo said:

The carb needle and seat allows fuel INTO the carb. If this needle hangs OPEN, it will eventually fill the cylinder AND get into the oil sump. Kind of works like a toilet fill valve does.

slomo

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Dipstick smells like gas, sounds like your hunch was right. I found an OEM carb that I’ll replace the aftermarket with and change the oil, hopefully it works.

Not get that running proper and sling some grass.

slomo

I guess you don’t know how a help forum works And I’m not your bruh. You ask for help and we try to supply it using the information given. Not standing next to you, we may be hundreds if not thousands of miles away, we have to make assumptions as to what is going on with your unit. We never know many things like person’s experience, mechanical ability, what they mean by terms they post, age and condition of unit, what has been done before by anyone, etc. Using our experience and the info provided we have to make assumptions and then give our best possible answers. If you would have simply posted “I’m at work, I’ll check when I get home” it would have helped your cause. But no you, having little experience wanted to go with your assumptions, instead of doing what we suggested first. Today people like you want immediate and exact answers, but the techs here are not psychic, so we try to do the best we have with what is provided. In your case I can think of a half dozen possible causes for your problem, but slomo and I wanted you to concentrate on one and most probable possibility first. We could have said you have a 12+ year old engine, where the rings, cylinder and valves are junk, so don’t bother fixing it. Our ASSUMPTIONS didn’t point in that direction, but wanted you to do a little work to clarify the problem. Sorry if this assumptio was to hard for you to swallow, NOT.

My lord sensitive much? It doesn’t take psychic powers to realize the majority of the population works during the day. I never said I’m not going to check it or I don’t think that’s it, I just was asking questions and yes you assumed by saying “he doesn’t want to check the oil”

Listen bruh, I appreciate your help, I really do, but lecturing someone on how a “forum” works and your above response clearly proves my point.

You need to relax.

Forums also need to use correct grammar, but we won’t address that. (That’s a joke but “people like you” don’t get jokes these days).

Again, thanks for your help, if it frustrates you that much, there’s a pretty simple solution, either I can mail you some coffee (that’d be tough to swallow) or you can just not respond.

lacrosse_24 said:

My lord sensitive much? It doesn’t take psychic powers to realize the majority of the population works during the day. I never said I’m not going to check it or I don’t think that’s it, I just was asking questions and yes you assumed by saying “he doesn’t want to check the oil”

Listen bruh, I appreciate your help, I really do, but lecturing someone on how a “forum” works and your above response clearly proves my point.

You need to relax.

Forums also need to use correct grammar, but we won’t address that. (That’s a joke but “people like you” don’t get jokes these days).

Again, thanks for your help, if it frustrates you that much, there’s a pretty simple solution, either I can mail you some coffee (that’d be tough to swallow) or you can just not respond.

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Alright you two. Enough said.

Rivets is a cherished member here with tons of knowledge and wisdom. This guy KNOWS his stuff.

So back to regular programming. Oh and BTW, most people do not work anymore. Roads and shopping stores are packed all the time. At least here in OKC that is. Everyone is on foodstamps and state assisted living, divorces where women are GIFTED everything they want including half or more of the men's assetes LOL. Free Lunch Program, WIC, unemployment and so on. Most women have 4-6 kids and make a fortune on unemployment. They drive better cars and live in bigger houses than us working folks. WOW where did all this come from. Back to mower repairs. Don't forget Mother's Day tomorrow.

slomo

i think I’ll respond bro. You are the one who needs to understand how help forums work. When you need help with a problem, you ask for help, because you are in over your head, but with a little guidance and an open mind feel you can learn to solve the problem. I taught shop not English, but I don’t think it really matters to anyone but you. Most people come here for help with equipment, not worrying about grammar. I do realize that most people work during the day, but I didn’t realize that your boss allows their employees to surf the web, trying to solve personal problems, instead of doing the job they were hired for. Could you post his name, as I’d like to work for that company. I hope you’re not in customer service, or maybe you are and working from home. Finally I’ll give you one more tip because of your inexperience. Make sure that you change the oil at least once, if not twice after you repair the engine. Do this to remove all the diluted oil or you’ll be asking how to repair a seized bearing. Sorry for any of the grammatical errors in this response, but I’m sure a highly educated person like you will understand what I’m talking about.
PS: I like a good strong, dark, blend of coffee, and would like to know if you could send me some or knew where I can get some. Thank you for the offer.

lacrosse_24 said:

Not knowing much about mowers besides how to strap on a carb, how does the carb affect the crankcase overflowing with oil? Is the fix buying the OEM carb?

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The crankcase is overflowing with oil that is mixed with fuel because the main jet needle is stuck open. If smelling the dipstick is out of the question, take an oil sample to a lab where they can determine if there is fuel in the oil, but option 1 is much easier.

slomo said:

I was talking about his Bruh comment and my undisclosed stupid joke of it being some new coffee. Like some French Bruh mocha chino mess.

slomo

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I'm glad you are too much of a gentleman to comment on the "strap-on" comment.

Joed756 said:

I'm glad you are too much of a gentleman to comment on the "strap-on" comment.

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I actually missed that stupid comedy moment. Nice catch Joe.

slomo

lacrosse_24 said:

When there was a lot of smoke it seemed pretty white, but as it lessened there's definitely a blue tint, I felt like it had to be oil. Just seemed odd that I mowed most of my yard with no problem then it just started out of nowhere. I'll check the dipstick, could this be a symptom of a head gasket?

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i put a fuel shutoff on fuel line so i dont have fuel in oil problem