Burning oil in Lawn mower.?

balls

So I just got a lawn mower on craigslist, and I fixed it and now it is running good. But the one problem is it is emitting blue smoke, which means it is burning oil.

It is about 100 degrees here, and I used 10W-30 instead of the recommended 30SAE motor oil when it is over 40 degrees outside. Do you think this may be the reason it is burning oil, and maybe not my rings? Also there was oil on the air filter from the breather tube, do you think the oil from that is going through the carburetor and then its burning that?

Answer
Big Guy is right. However, I would suggest you pour in an egg-cup full of SeaFoam into the cylinder via the spark plug hole and let it sit for 24 hours. This will un-stick a stuck ring and clean out the valve seats too when you eventually pull on the cord.

50 years fixing small and large mower engines.

what happens if i put vegeteble oil in a lawn mower engine?

in the crankcase

Answer
you will destroy the engine. Veggie oil is not made to withstand the friction of a combustible engine and the pistons will first overheat, then expand, then crack the cylinder walls finally causing the engine to seize. Other than that, not much

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Burning oil in Lawn mower.?

balls

So I just got a lawn mower on craigslist, and I fixed it and now it is running good. But the one problem is it is emitting blue smoke, which means it is burning oil.

It is about 100 degrees here, and I used 10W-30 instead of the recommended 30SAE motor oil when it is over 40 degrees outside. Do you think this may be the reason it is burning oil, and maybe not my rings? Also there was oil on the air filter from the breather tube, do you think the oil from that is going through the carburetor and then its burning that?

Answer
Big Guy is right. However, I would suggest you pour in an egg-cup full of SeaFoam into the cylinder via the spark plug hole and let it sit for 24 hours. This will un-stick a stuck ring and clean out the valve seats too when you eventually pull on the cord.

50 years fixing small and large mower engines.

what happens if i put vegeteble oil in a lawn mower engine?

in the crankcase

Answer
you will destroy the engine. Veggie oil is not made to withstand the friction of a combustible engine and the pistons will first overheat, then expand, then crack the cylinder walls finally causing the engine to seize. Other than that, not much

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How can I flush diesel fuel out of a gasoline lawn mower engine?

best lawn mower engine oil image

bkcrum

Is it possible to flush out diesel fuel in a gasoline lawn mower engine without buying a new lawn mower?

Any recommendation would be appreciated.

Answer
Yes you can do it! You didn't say if it's a push or a rider, either way it's simple! If you have a push mower first remove the air filter, tip the mower over (with a bucket under to catch the diesel) getting as much out as possable. Some engine oil will run out that's why you removed the air filter to keep oil out of the element. Refill the tank with fresh gasoline. You may have to use a starting fluid (sparingly) to counteract the diesel in the carb, but it will start. run the tank dry and you should be over the crisis of diesel fuel. Oh don't forget to replace the clean air filter!

How could i put a lawn mower engine on a dirt bike?

Justice S

I was wanting to know how to put a lawn mower engine on a dirt bike. and how i could make sure the oil gets to it if i do put it on. And would it even work?

Answer
Kids have been powering mini-bikes with lawn mower engines for as long as I can remember. You need an engine with a horizontal crankshaft. A vertical crank would require too much ridiculous engineering to transmit the power to the rear wheel.

Use a proprietary variable-speed belt to drive a jack-shaft which in turn drives the chain to the rear wheel. I have seen mini-bikes built this way which work much better than the old method of a single-speed chain drive direct from a centrifugal clutch on the end of the crank.

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Removing a lawn mower blade adapter help?

best lawn mower engine oil image

Cory

Ok so I am overhauling a lawn mower engine and replacing the gaskets, trying to remove the blade adapter. It will NOT come off. I used a little hand torch and I wasn't able to get the adapter cherry red but I used a crank puller various times, used penetrating oil, I even used kerosene on the thing to set it a fire, I banged the hell out of it with a hammer, and it just wont come off. There is no loose rust on it, but the thing is over 10 years old. Any ideas or thoughts?? I tried different things throughout the past 2 weeks and its not working.

Answer
If it screws on try removing it in a clockwise direction. It that doesn't work then I would say two weeks of trying is long enough. Take it to a lawn mower repair service.

What are the consequences if I overfill with oil on a lawn mower engine?

Sabastien

I decided to get rid of some oil and i decided to change my lawn mower oil. I had some left and went ahead and poured the whole bottle in there. The oil level is just a bit higher than the "High" market. My engine is burning a little oil. How much can this damage my engine?

Answer
Being a little over full shouldn't cause damage.It may result in an increase in oil splash withing the crankcase which may allow some oil to enter the crankcase breathing tube.This oil will be drawn into the carby and may result in some smoke blowing or possibly some spark plug fowling.The engine my seem a little less powerful due to increased drag on the crankshaft caused by a higher than standard oil level.

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