A smoky, and the reasons for exclusion method

The phenomenon is due to incomplete combustion of fuel arising. Smoky, accompanied decreased engine power, exhaust temperature is too high, the water temperature too high, resulting in the mechanical engine wear and reduce engine life. The causes of the phenomenon (leading causes of incomplete combustion many), and exclude the following manner.

(1) or high exhaust back pressure exhaust pipes blocked. This will cause the feed rate, so impact on air and fuel mixture ratio, resulting in excessive fuel. This situation: First, the exhaust pipe bends (especially the 90 �� bend) too much, should be minimized; Second, the internal muffler was too much ash obstruction, should be removed.

(2) into the air intake inadequate or blocked pipes. In order to investigate the reasons for, the following examination should be carried out: First, whether the air filter blocked the second is whether the leakage into the trachea (if this phenomenon, due to engine load increases with the more strident gas howling); 3 Turbocharger is whether the damage. Should check the exhaust supercharger round and round the damaged blade rotation is smooth and flexible in the cold for four is whether or not blocked.

(3) valve gap adjustment is not correct, Valve Seal Line bad contact. Gap should check valve, valve springs and valve seal situation.

(4) high-pressure pump oil in the cylinder uneven or too large. Uneven supply will have speed instability and intermittent smoky, should be adjusted to balance or within the specified scope.