Treatment:
1. Open the compressor outlet or the engine inlet straight pipe (rubber hose), and watch whether the inlet and wall adhere to the oil. If yes, please check whether the supercharger return pipe is unblocked. If the trouble is caused by oil accumulation in the middle support, the return pipe should be dredge after loading.
2. If smooth, it is due to the impeller end seal ring or oil ring damage caused, should be disassembled supercharger repair.
Phenomenon three: oil consumption, exhaust smoke blue or black smoke, and power decline.
This article by Guilin New Ronghuang machinery Co., LTD