Question about 5.5 HP GX160 Engine

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Why does the exhaust blow smoke?

What would cause a 5.5hp GX160 engine to start burning oil, a lot of oil as if it there was a direct oil line to the exhaust?

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It's a loosen rings. Take ur engine to an expect to fix a new rings for you.

Posted on Dec 29, 2014

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Could be a number of thing..cracked block,,valve cover vent,,oil seal on intake valve,(on some models),, worn or stuck scraper ring..

Posted on May 08, 2014

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There are a number of reasons:
How many hours on it?
With many hours on an engine rings loosen and then it burns oil.
Has this just started?
Overfilling the oil would make it burn oil.
Did you put 2cyl gas mixed with oil in it by mistake?
Has the engine overheated?

Posted on May 07, 2014

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It needs segmentation. The piston segments are filled with calamine (burned oil) and keeps the segments sticked to the piston, therefore the flame enters into the oil carter and burn as much air is available there. That's why the oil is exhausted, usually burned but also unburned.
You need to go to a mechanic/service shop to change your piston segments. This way your engine will work fine again.

Posted on May 07, 2014

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Posted on Jan 02, 2017

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I'm looking to purchase a used car. I've been doing online research and saw this webpage http://www.usedcarsmells.com . They talk about exhaust color and smells. Is it true that you could tell a lot about...


Yes this is correct, you can get important information from the colour of smoke from the exhaust:

Blue/Gray Smoke: Blue/gray exhaust smoke is an indication of oil burning in the combustion chamber. These are possible symptoms and causes:
Valve Seals: Leaking valve seals will cause blue/gray smoke at startup because oil leaks past the seals into the cylinder after the engine shuts down.
Valve Guides: Excessive clearance between the valve stem and the valve guide allows oil to leak past the gap into the cylinder.
Piston Rings: Worn or damaged piston rings will cause blow-by resulting in blue/gray smoke.
Worn Cylinder Walls: Worn cylinder walls cause blow-by resulting in blue/gray smoke.
PCV System: A stuck closed PCV valve will cause excessive crankcase pressure resulting in blue/gray smoke.
Black Smoke: Black exhaust smoke is an indication of a rich fuel condition. These are possible causes:
Fuel Injectors: A leaking or dripping fuel injector will cause a rich fuel condition.
Fuel Pressure Regulator: A stuck closed fuel pressure regulator will cause a rich fuel condition.
Fuel Return: A restricted fuel return line will cause a rich fuel condition.
White/Gray Smoke: White exhaust smoke is an indication that coolant is burning in the combustion chamber. These are possible causes:
Cylinder Head: A crack in the cylinder head (around the coolant jacket) will cause coolant to enter the combustion chamber.
Engine Block: A crack in the deck of an engine block near the coolant jacket will cause coolant to enter the combustion chamber.
Head Gasket: A damaged or blown head gasket will cause coolant to enter the combustion chamber resulting in white/gray smoke coming from the tailpipe.

Jan 17, 2015 | Cars & Trucks

1 Answer

Why is my car losing oil?


Hi..That is a lot of oil you are losing, The engine is definitely toast.
Blue/Gray Smoke: Blue/gray exhaust smoke is an indication of oil burning in the combustion chamber.

Valve Guides: Excessive clearance between the valve stem and the valve guide allows oil to leak past the gap into the cylinder.
Piston Rings: Worn or damaged piston rings will cause blow-by resulting in blue/gray smoke.
Worn Cylinder Walls: Worn cylinder walls cause blow-by resulting in blue/gray smoke.
PCV System: A stuck closed PCV valve will cause excessive crankcase pressure resulting in blue/gray smoke.
Is it worth fixing? Depends on how much this car means to you, Mileage of vehicle, and just how much money you want to throw into a 20 year old car..The engine will need to be completely overhauled or change out with a used engine probably close to 800- $1000 either way..Probably have a lot more into this than you can live with I'm guessing
Is it worth fixing?

Jan 16, 2015 | 1996 Geo Prizm

2 Answers

Why is my 2000 kia sephia blowing blue smoke from the tailpipe. it has 86,000 miles. the check oil warning light is on even though the dipstick reads full.


The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. This is most frequently seen in older or high mileage cars with worn seals and gaskets. It only requires a very small amount of oil leaking into the cylinders to cause excessive blue exhaust smoke.

Blue exhaust smoke only at start-up can indicate worn piston seals or damaged or worn valve guides which may also cause a rattling noise. An external engine oil leak can drip onto hot engine and exhaust parts causing what appears to be blue exhaust smoke. Other possible causes of blue exhaust smoke include: piston wear, worn valve seals, a dirty or non-functioning PCV valve, worn piston rings, an intake manifold gasket leak, worn engine oil seals and possibly even head gasket failure.

Oil leaking into the cylinders can cause a rough idle, misfire and fouled spark plugs. In addition, a reduction in power and oil loss can be indicators that the blue exhaust smoke is caused by an internal engine oil leak. Internal engine oil leaks can also allow fuel to mix with the oil in the crankcase which will degrade the oil and prevent it from adequately protecting the engine.

Operating a car with a severely dirty oil filter, air filter or improperly functioning PCV valve can also sometimes result in engine oil blow-by, oil loss and blue exhaust smoke. Periodically checking the engine oil level with the oil dip stick will indicate if there is excessive oil consumption. Higher viscosity engine oil can sometimes temporarily reduce the amount of blow-by; however, this is not generally recommended. Excessive blue exhaust smoke indicates a possible internal engine oil leak that should be inspected by an ASE certified mechanic.

Dec 08, 2014 | 2000 Kia Sephia

1 Answer

1984 honda big red smoking out the exhaust littel oil coming out tho also it has the wrong carb on it the carb come off a honda atc 200x


If it is black smoke, it could be running rich and the correct carb will fix that. If it is blue smoke, then it is burning oil.

Apr 10, 2014 | Honda 84 Atc200 Big Red 200 Engine Stator...

1 Answer

Excessive exhaust smoke


You may have a broken ring or scored cylinder wall and piston. Have a cylinder leak down test performed to confirm this. Other causes can be a plugged crankcase ventilation system causing pressure to build in the engine, if that is the case the air cleaner box should have oil in it. The grey color of the smoke means you are burning a lot of oil.

Mar 14, 2014 | Mercedes-Benz Cars & Trucks

1 Answer

99 Grand Am Smoke Exhaust


I'm sorry to say your engine may be cooked.
Since you are adding both oil and coolant, and the color of the smoke is gray or white, you have the signs of the engine burning coolant.
The common cause is a leaking head gasket.

Dec 17, 2012 | 1999 Pontiac Grand Am GT

1 Answer

My car oil goes down and smoke from exhaust


It's burning a lot of oil. You'll have to have the engine overhauled to fix it. Did it just start smoking and losing oil? Might be a broken oil ring. It is a bluish smoke out the exhaust? That's a sure sign of oil burning.

Nov 14, 2011 | 2002 Mitsubishi Montero Sport

2 Answers

Blue smokes come out tailpipe when i start the car but stops afte


Helllo there
Symptom: Gray or blue smoke from the exhaust. You notice gray smoke coming from the exhaust when you start your car. The smoke may or may not disappear after the car is warmed. If it is, it is less noticeable. The smoke may have a bluish tint to it. Possible causes:

  1. The engine's piston rings may be worn.
    The Fix: Replace piston rings. (Generally not a DIY job)
  2. The engine's valve seals may be worn.
    The Fix: Replace valve seals. (Generally not a DIY job)
  3. Damaged or worn valve guides.
    The Fix: Replace valve guides. (Not a DIY job)
Symptom: Engine uses more oil than normal, and there is some smoke from the exhaust. The oil level is low between oil changes. It appears that the oil is being burned by the engine because of the smoke in the exhaust. You may or may not notice the engine doesn't have the same power as it used to.
Possible causes:

  1. The PCV system is not working properly.
    The Fix: Replace PCV valve.
  2. The engine may have mechanical problems.
    The Fix: Check compression to determine engine condition.
  3. The engine's piston rings may be worn.
    The Fix: Replace piston rings. (Generally not a DIY job)
  4. The engine's valve seals may be worn.
    The Fix: Replace valve seals. (Generally not a DIY job)

Jun 01, 2010 | 1989 Buick Electra

1 Answer

1.9 dci no power and bluey grey smoke is coming from the exhaust


There are indeed traces of oil coming out of the exhaust. Blue smoke is burning oil. Grey or white smoke is usually coolant/water going through the engine. This can be caused by leaking head gaskets, valve guides depending on the engine, excessive blow-by, etc. Large amounts of oil are not good; and water is even worse. I would look at getting the head gasket replaced. The loss of power is because neither oil or water likes to burn, and once your engine clears it out, it probably runs ok for the rest of the day. Then I'm guessing the next morning, it comes back. This is an urgent fix, because prolonged leakage can damage the engine block, head, or both.

Oct 19, 2009 | Renault Sport Cars & Trucks

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