Question about 1989 Nissan 240SX

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Piston rings are gone 89nissan240sx 2.4L

Is there some kind of additive thate can be put in the engine to help slow down the oil burning. The car looks good but it looks funy when iam driving and theres smoke coming out the back. It is not smoking to bad right now but still looks funny. Thank you.

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Sorry there aint nothing you can do about it. except change your piston rings

Posted on Mar 07, 2009


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3 Answers

Have a rotten egg smell with no catylatic converter lots of smoke out the exhaust

smoke usually means the piston rings are bad...try an additive to slow down the smoke if possible...

Jun 02, 2015 | Cars & Trucks

1 Answer

Burning oil and you can drive for awhile and then it will die on 2001 grand am 2.4l

My last three cars have come equipped with that particular engine. Although it is very rugged, if the rings or valves are worn then you just might be burning oil. Pistons are usually equipped with rings at the top. The rings not only seal the combustion chamber, but they also scavenge any oil that happens to drip down the sides of the cylinder before the compression stroke occurs (this can happen if your valves aren't seated and sealing correctly). The oil provides lubrication for the piston so it can slide up and down the cylinder. The rings take care of the oil that is there, as noted.

If the rings are gone then two things happen. The engine doesn't seal and it leaks air. Though the cylinder may fire, the amount of fuel isn't right and the power will be way down. Attempting to drive it is like driving with an anchor attached to your car. You'll get ahead, but very slowly. The engine may also sound horrendous.

The same condition can occur if the valves aren't seated or sealing correctly. Since the engine is not sealing and is leaking, then the amount of pressure available for proper compression and proper engine operation is not available. The result is poor performance.

Like leaking rings, a worn valve or valves will not only cost you mileage, but your car's engine may sound like a cement mixer. Worn valves also can cause a flood of engine oil to cascade down the cylinder walls, overwhelming the rings, causing burning oil.

I would suggest having a compression test run to indicate which piston is bad and then having that piston serviced. To bring performance back, it is a good preventative measure to replace the rings and valves, just in case. Worn rings could indicate that the valves are about to go and vice versa.

Burning oil can also be caused if a piece of your car's head gasket is blown out. Your engine will run but, in this case, your engine will sound like a tea kettle. It will also run that way, too.

To diagnose this problem, you start with a compression test of each cylinder. If the cylinders are within specification, then the culprit is most likely a blown head gasket. To repair it, you will have to have your car's valve covers removed, exposing the gasket. Then after cleaning the area and applying either the gasketing material or a gasket itself -- with correctly dressing -- and putting the covers back. The covers should then be torqued down to specification.

Oct 18, 2014 | Cars & Trucks

4 Answers

I have blue smoke coming out of the exhaust of my 1998 dodge caravan

Blue smoke is usually an indication of bad rings, which allows engine oil to be burned as you drive. The fix requires engine teardown, pulling off the heads, removing the oil pan, and removing the crankshaft, rods, and pistons. The cylinders may need to be bored, but at the least they will need cleaned up with a hone. The old rings taken off and new rings istalled. If the engine needed bored, then new pistons must be installed. Then, put it all back together.

Hope this helps you

Apr 12, 2011 | Dodge Caravan Cars & Trucks

1 Answer

Burning oil

Most of the time, when you first start your engine and it smokes, then the smoking slows down after the engine gets hot; this is a sign of valve seals, because the seals get softer when they are hot and re-seal themselves. If your car smokes all the time, hot or cold this is sign of bad oil rings, because of the oil being forced up past the oil rings, into the cylinder.

Jul 13, 2010 | 1991 Nissan Pathfinder

3 Answers

2005 mazda 3 2.3l that is burning oil (no leaks)

possibly the pcv but check if your cars exhaust smoke is blueish or white in color if it does and your car doesnt have an oil leak then sure its burning engine oil along with fuel, the piston rings is defective, since you replaced engine oil the additive that the owner has put with the oil to prevent blowby is gone thats why it starts burning oil.....

Apr 14, 2010 | 2005 Mazda 6

1 Answer

Constant smoke when driven at higher speed

hi this could be attributed to a couple of things, first, piston ring or engine bores, these could be warn and upon allot more pressure being put on the engines the oil is slowly seeping past the oil rings/compression rings on the pistons causing burning of the oil hence smoke at higher speeds, second, valve seat guides, these have a small oil seal on them and also the seat itself should be at such a low tolerance that it should'nt let oil through into the bore, obviously if they have warn they will allow oil to seep through and burn in the bore, and also the seat oil seals tend to go hard over a period of time then they crack and also let oil seep into the bore, you can find out if the piston rings have warn by getting the engine pressure checked, and to find out if the oil seals on the seats have worn or gone hard this will a case of removing the rocker cover to check them, obviously this should be done by a garage or dealer...hope this helped

Feb 22, 2010 | 2004 Jaguar X-Type

1 Answer

Emits smoke little blue when stats and stops after

So upon startup the car has a little smoking going out the tailpipe? Then it goes away after the car warms up a little? You probably have stuck piston rings and are burning oil at first until the car warms up and the rings seal better. What kind of oil are you using? What weight is it? I don't know what is in the car, but if it is conventional oil at 10w-30, try changing it to synthetic and using 5w-30. I don't know what that car comes with from factory or calls for, but in my experience I've stopped oil burning in a piston engine with thinner, synthetic oil. This helps to unstick the rings allowing them to seal better AND the thinner oil doesn't collect on the rings so much, keeping it from burning or going out the tailpipe. Also, synthetic doesn't burn and carbonize like convention oil (dinosaur juice) does.

I really hope I understood your problem and helped you with it. If not, please clarify. Good luck!

Jan 31, 2010 | 2006 Hyundai Accent

3 Answers

How do you know if a piston ring has gone on a Ford Puma?

You cannot see a broken piston ring without taking the engine apart. If there is a broken piston ring you may or may not hear or see any evidence of it. If the piston itself is broken you will hear, see and maybe smell it with burning oil.

Jul 19, 2009 | 2001 Ford Focus

2 Answers

Oil consuption

Try to determine how much is leaking by putting a plastic pan under car overnight..
Typical leak sources are pan gasket, oil plug, oil pressure sender.

If burning oil, it will be obvious at startup and/or from the rear while driving especially during hard acceleration. Have some drive behind you to observe. They'll see obvious bluish smoke.

If burning is most responsible, and not much is leaking, you may have worn valves or piston rings.
Both fairly expensive to repair. As a temporary cheap solution, add oil additive (such as STP or Rislone) to reduce burning (it may slow the leak a bit too).

Jul 30, 2008 | 1998 Mazda Protege

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