Question about Cars & Trucks
Posted by Anonymous on
First of all, always make sure you have enough oil in your engine, check often, because it sounds like you are leaking and/or burning oil. Some rods will knock for a while before your engine in ruined, but when you combine knocking with smoking, you are generally describing a dying engine. Baby your engine and see if you can keep it going for a while so you can save up for a rebuilt engine or a new car. If you look and oil is leaking around the top of your engine, you may be burning oil because your valve gasket leaks onto an engine that gets really hot and burns it. If you see it leaking, you need a new valve gasket which is usually less than a hundred bucks if you do it yourself. On some simple engines it is not hard to do, I just did one the other day. It is unlikely your clutch has anything to do with it. Good luck.
Posted on Apr 02, 2015
In some cases, gasoline problems cause the irregular combustion that leads to knocking sounds in an engine. This can occur because of problems with gasoline octane. Gasoline's octane ratings signifies the amount of compression the fuel can handle before spontaneous ignition. When this spontaneous ignition happens instead of the normal ignition, knocking may occur and can cause damage to the engine. The lowest octane gases are typically the least capable of withstanding compression and are more likely to ignite this way.
Sometimes the sound of engine knocking is caused by something other than the typical combustion process problems. For example, some types of mechanical issues may cause these knocking sounds. Such mechanical issues can include defects in the crankshaft bearings, broken flywheels, and water pump bearings that are worn out.
Posted on Apr 02, 2015
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Posted on Jan 02, 2017
Sounds to me like a very common problem has occured to your neighbor. If this is a SOHC engine, one of the valve seats in the number 4 cylinder has fallen out. I'm sure it has damaged the head and the piston. Stop trying to run it or you might blow a hole in the cylinder wall or break a rod or both.
Posted on Aug 07, 2009
Hi, this could be because the cam timing is a notch or 2 out. The fact that it quiets down when the engine heats up is because the timing is retarded as the engine reaches operating temperature. You will have to look at the cam timing and make sure that they have done it correctly. If that is fine it might be that they have dropped something, like a bolt or nut into the valve cover when it was removed.
Posted on Jan 17, 2010
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I have toyota corona 3s engine it smokes black and fuel consuption is high we have changed the engine oil and cylinderhead gassecate but still black smoke is comming what should i do
Posted on Mar 29, 2010
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