Smoking like crazy. - Lawn Mower Forums : Lawnmower Reviews, Repair, Pricing and Discussion Forum
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post #1 of 16 (permalink) Old 09-08-2018, 06:56 PM Thread Starter
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Smoking like crazy.

My D160 is blowing smoke like it's a politician. Plugs were pretty fouled so I changed them out. It all but quit smoking and ran like it was new, that was last night. Today, it started running fine and then went to blowing smoke and lost about 1/3 to 1/2 of the power.
It's not really loosing any oil to speak of.

Any ideas?

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post #2 of 16 (permalink) Old 09-09-2018, 07:34 AM
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First check the oil for the smell of fuel! If present stop using the machine as it will destroy the engine! The possibility of a blown head gasket is also a possibility.
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post #3 of 16 (permalink) Old 09-09-2018, 08:14 AM Thread Starter
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Thanks, I'll check that. How do you check for a blown gasket?

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post #4 of 16 (permalink) Old 09-09-2018, 09:06 AM
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Thanks, I'll check that. How do you check for a blown gasket?

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Oil leak by head, smoke out of dipstick right after turning it off.


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post #5 of 16 (permalink) Old 09-09-2018, 10:28 PM
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Thanks, I'll check that. How do you check for a blown gasket?

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X2 on the gasket being the culprit.

I have seen people check the head gaskets by spraying soapy water around the head, then running the engine, and looking for any areas that are blowing bubbles.

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post #6 of 16 (permalink) Old 09-10-2018, 08:10 PM
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I'm leaning toward a broken piston ring
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post #7 of 16 (permalink) Old 09-10-2018, 09:58 PM Thread Starter
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I'm leaning toward a broken piston ring
Maybe...but the way both plugs foul out it would need to be both pistons.

Also, there was oil in the intake. That makes me wonder it's the pcv.

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post #8 of 16 (permalink) Old 09-11-2018, 05:05 PM
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Is the smoke white or black? If its white, I agree with the other posts.

If its black, I'd check the air filter or run it without the air filter to make sure. Sometimes clogged air filters will make your engine run in a "Choked" position (too much gas not enough air)...symptoms include fouled plugs, black smoke and loss of power.

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post #9 of 16 (permalink) Old 09-11-2018, 05:38 PM Thread Starter
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It's black. I checked the air filter, it was a little dirty. It also had a little motor oil on it as well.
There's a fair amount in the intake.
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Is the smoke white or black? If its white, I agree with the other posts.

If its black, I'd check the air filter or run it without the air filter to make sure. Sometimes clogged air filters will make your engine run in a "Choked" position (too much gas not enough air)...symptoms include fouled plugs, black smoke and loss of power.
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post #10 of 16 (permalink) Old 09-11-2018, 08:19 PM
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Thinking your carburetor needle/seat isn't holding...and your running flooded ..! Rich...black smoke...if tank is gravity feed, sittiing overnight, you're also overflowing into the intake, down pass the rings into crankcase, and running with diluted oil...which offers white smoke and oil fouled plugs...Don't run till fixed...pinch the fuel line with vice grips when stored...Otherwise, I suspect you do have a blown head gasket....as others have mentioned..but color of smoke is misleading for now...

Last edited by suspicionofignorance; 09-11-2018 at 08:25 PM.
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