Tanker forklift 4102 diesel engine overhaul the whole car pad (site www.wfhccyj.com www.wfliheqi.com) oil pan, oil pump, filter, filter, fuel filter, starter, generator, air filter, diesel filter, filter, main bearing, connecting rod bearing, thrust bearing, cylinder pad valve, valve seat the catheter, a row of black smoke, can consider to check the intake air inlet pipe is smooth, whether the deformation increased air resistance. Remove the air filter cover, remove the filter and clean up the maintenance of the re test machine, to observe whether the exhaust pipe still continue to smoke. If the smoke was reduced, the air filter is too dirty or have problems installing, affect the volume of