Weifang Huakun diesel engine factory, Lin Jingli 13864600749 QQ 2636566799 main Weifang Diesel, diesel generator set and Weichai parts oil Weichai parts 4102 body < br />1. & nbsp; & nbsp; & nbsp; & nbsp; oil pump failure. />2. 
3. 
1. crankshaft and bearing lock.
2. the piston and the cylinder lock. />3. 
4. 
5. 
1. if there is a brush. />2.