Find car exhaust black smoke reasons

Car exhaust black smoke is generally caused by incomplete combustion, many reasons: injector clogging damaged spark plugs, intake air pressure sensor or air flow meter had stolen, or damaged, the oxygen sensor is damaged, the temperature sensor is damaged, the air filter clogging and so on.
Black smoke
The carbody performance: car engine shake, exhaust pipe is not normal sound, while the discharge of black smoke body acceleration feel powerless.

The cause of the malfunction: smoky phenomenon is more common in the carburetor car, this is due to the the carburetor models fuel injection quantity is not controlled by the computer, but by the foot throttle control, in some cases too much fuel the burning discharge car into the cylinders too late, thus causing the smoke we see.
The more produce black smoke Failure carburetor car black smoke reason is more complicated. Such as cold start, the spark plug is not good, want to make a half-day to start the motor, such a product mixture of the cylinder is not completely burned, will naturally have a smoke discharge; or vehicle ignition at the wrong time, in advance or after the mistake will resulting in smoky generated. EFI car black smoke very little, if it emitted smoke, it is mostly the fault is the cylinder body. Off tank "is a common one.
Approach: 1. Carburetor car now basically have been on the old, and should always check the carburetor and other parts of the aging, the carburetor cars is different from the EFI cars, to regular maintenance and calibration, develop good car habit. EFI car to check the tank every 30,000 km, check the spark plugs every 10,000 km, the problem must be promptly replaced.

Causes and solutions of car engine overhaul

Engine overhaul the upper abnormal sound is the ordinary Santana a more common fault phenomenon, most of the camshaft poor lubrication.

Ordinary Santana engine camshaft bearing, camshaft gap if it is too small, poor lubrication and accelerated wear; camshaft gap is too big, it is not easy to form the film will cause poor lubrication.

This happens, if a separate replacement camshaft watts cover, buy on the market, while Watts cover and cylinder head assembly - onwards. If you replace the whole cylinder head, you have to pay at least the cost of more than 3,000 yuan. Is there a simple method can guarantee the effective lubrication of the camshaft to avoid the abnormal sound of the engine upper as well as lower maintenance costs, and reduce the burden for the user?

The most simple and effective method is to cover the arc direction along the camshaft watt, open with a scraper or, according to the article - in the middle of channel width around the sump depth of about 0.15mm and corresponding camshafts hole, can improve the camshaft lubrication . The ordinary Santana engine several repaired using this method, the results have been very good, not only for the camshaft lubrication system parts do not have any side effects, but also easily exclude abnormal sound engine upper fault.

The ordinary Santana engine overhaul technical specifications, in camshaft gap rarely involved. Due to improper gap caused by the failure of the engine upper abnormal sound, you can open a sump solve the problem. For a camshaft tile covered with open sump for oil storage, to ensure reliable lubrication of the camshaft. If the gap is too small, you can speed up the process of the formation of lubricant film. If the gap is too large, the the oil channel can play a certain degree of cushioning and pressure relief role. This not only guarantees the quality of the repair, but a substantial cost savings for the user.

Note: be sure to confirm before processing oil Road, abnormal sound is indeed caused by improper camshaft gap. The first check valve clearance, hydraulic tappet and oil pressure.