Question about Craftsman GT 5000 26 HP54" Garden Tractor ()

1 Answer

Blue smoke on startup

After sitting for a week, the engine puts out a lot of blue smoke when started. Eventually stops smoking after less than a minute but really has me worried. Checked oil level and is in between ADD and FULL. Can shut down tractor and restart after half hour with no smoke. Only 23 hrs on tractor.

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  • George Jul 28, 2013

    I was taught blue smoke means oil, black smoke means fuel. I used to own a BMW motorcycle that would blow out blue smoke on startup when put on the sidestand. According to BMW and a bunch of my Beemer riding buddies this is quite normal and won't hurt anything. But with this B&S engine I don't think this is normal.

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  • Craftsman Master
  • 2,478 Answers

Just left over fuel in cyl. Its ok.

Posted on Jul 26, 2013

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  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: TRACTOR BLEW WHITE SMOKE, AND STARTS TO SPUTTER

Start with making sure your oil lever is not over full. If it is it may be getting into the crankcase breather hose that goes to the carburetor hence the white smoke. Sometimes also you can blow a gasket in the breather system and it will do the same. Check for oil leaks in the breather system. Hope this helps. donnyb60

Posted on Mar 21, 2009

#1 Taper
  • 1040 Answers

SOURCE: I have a 20hp,Craftman lawn tractor, single

If you keep running it in this condition, it will eventually seize up on you. You are going to need to rebuild the motor. Oil is getting by the ring on the piston. And gas is getting into the crankcase because it's being mixed with oil and not burning properly.

My advice would be to stop using it and get it fixed, before you cause even more damage.

Good Luck!

Jim

Posted on Sep 24, 2010

  • 110 Answers

SOURCE: I have a DYT 4000 from 2004. Cutting the lawn

Sounds like an internal engine failure. Take the spark plugs out and stick a screw driver in the the cylinders. Then turn the engine by hand, and see if the pistons move. My guess is one or both won't, but if they do then you'll need to do more testing like a compression test or leak down tests. You may even need a partial tear down to find the problem. Sorry to be the bearer of bad news, but it is possible that it is repairable rather than having to purchase a whole engine.

Posted on Oct 30, 2010

murrayhall53
  • 22 Answers

SOURCE: I have a craftsman Lawn tractor with a briggs and

You have a blown head gasket.

Posted on Feb 01, 2012

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1 Answer

Blue smoke when start in morning


This is a sign of engine wear. If you only see it on startup, it is probably due to worn valve guide-to-stem seals at the top of the engine. You could try an oil additive like

http://www.carsrus.com.au/nulon-engine-stop-leak-reduces-oil-leaks-blue-exhaust-smoke-damaged-oil-seals.html?gclid=CPK-_6W0jsMCFYsrvQodCrsAkQ

but the only real cure is to replace these seals. In many cars this can be done quite easily without removal of the cylinder head.

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Smokes on start up


Smokes blue on cold startup = leaking valve seals, which really don't affect drivability if it stops 1-2 seconds after startup. To fix you need new valve seals/heads rebuilt.

If it smokes while under load, then the rings are worn, letting oil seep past the rings into the compustion chamber.

Have you let this car run low on oil? Leaking valve seals usually present themselves if the car has been sitting a while, drying out the seals/cracking them. Worn rings should only present themselves after very very high milage, such as 300,000 miles or more. Somebody has not changed the oil on a regular basis, or just never changed the oil, or only changed the oil like every 20,000 miles.

To bring your engine back to normal, you will have to overhaul the engine and have the heads rebuilt as well.

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I am experiencing problems with my BMW 320i - 2004 model. It does not start easily. When it starts, a blue fuel smoke comes from the exhaust. this causes the car also to be heavy on fuel consumptio


Blue smoke is caused by oil. Rich running causes black smoke and will set the check engine light. Rich running (black smoke) on startup could be caused by a leaking injector. The blue smoke puff at startup is likely valve stem seals leaking or a bad crank case vent malfunction and sucking oil into the manifold at high vacuum conditions.

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Lawn Boy pushmower blew out lot of whitish-blue smoke after starting (has not run in 110 days). Checked oil level, was to high, so removed some oil, after thar ran fine but after 10 minutes, same...


Hi, change the oil and your problem will be solved. Basically it was over full because fuel has by-passed the carby needle and leaked into the sump while its been sitting idle. Regards Phil.

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Hi,
is it a diesel or gas engine?
Usually excessive blue smoke on start up indicates oil is getting into the combustion chamber. It could be piston rings or valve seals.
Quick check, drive it within operating range and speed. Either use the rear view mirror or get someone to drive it and you follow in another vehicle. Accelerate, then take your foot of the accelerator. Blue smoke under acceleration indicates piston rings / pistons. Blue smoke on deceleration or the "over-run" indicates worn valve guides / seals.

White smoke can indicate coolant in the combustion chambers / leaking cyl head gskt, or incorrect fueling. If brake fluid gets into the combustion chamber it will generate a lot of white smoke from the exhaust. However, that would entail a leaking brake master cyl and a leaking brake booster.

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1 Answer

Blue smoke


Blue smoke is never a good thing....

Blue smoke is caused by engine oil entering the cylinder area and being burned along with the fuel air mixture. As with the white smoke, just a small drop of oil leaking into the cylinder can produce blue smoke out the tailpipe. Blue smoke is more likely in older or higher mileage vehicles than newer cars with fewer miles.
How did the engine oil get inside the cylinder in the first place? The car has many seals, gaskets, and O-rings that are designed to keep the engine oil from entering the cylinder, and one of them has failed. If too much oil leaks into the cylinder and fouls the spark plug, it will cause a misfire (engine miss) in that cylinder, and the spark plug will have to be replaced or cleaned of the oil. Using thicker weight engine oil or an oil additive designed to reduce oil leaks might help reduce the amount of oil leaking into the cylinder.

your engine has worn valve guides, piston rings An engine that burns a lot of oil (more than a quart in 500 miles) is an engine that needs to be overhauled. Normal oil consumption should be a quart or less in 1500 miles. Most newer engines consume less than half a quart of oil between oil changes (every 3000 miles). So if your engine is burning oil, it's essentially worn out and needs to be repaired.
Because the cost of overhauling or replacing an engine often exceeds the value of an older car or truck, many people will just keep on driving a "mosquito fogger" in spite of the blue clouds of smoke it leaves behind. Never mind the pollution it causes, oil is cheaper than a new or rebuilt engine they reason. That philosophy may be okay if you live out in the sticks somewhere. But in urban areas that require periodic vehicle emissions testing, an engine that's burning oil usually won't pass the test because of excessive hydrocarbon (HC) emissions. You may get by on a waiver after you've spent some money (in vain) on a tune-up, but the fact remains you're still a polluter.
An engine that burns a lot of oil will also eventually foul the spark plugs. Thick, black oily deposits build up on the plugs until they cease to fire. Then the engine misfires and loses power. Cleaning or changing the plugs may temporarily solve the problem, but sooner or later they'll foul out again.
Forget about "miracle" oil additives or pills that claim to stop oil burning. They don't. Better to save your money and put it towards a valve job and new set of rings.

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2 Answers

Little power if you just get in and go. push on the gas and doesn't go. blows blue smoke if it doesn't run for a few days.


Hello Melissa,

Blue smoke is caused by burning oil. If you get blue smoke at startup or when taking off from a stop then you probably have leaky valve seals. The oil is getting past your seal and into the combustion chamber; When you startup the car the combustion chamber burns off the oil causing blue smoke.

You will definitely need to get this car to a shop, this will involve getting into the internal components of the engine.

Thanks for using Fixya! and Please rate my post:)

David R

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