2.5.1.1. Specifications of F.O. Feed Pump Outlet orifice dia. : φ 0.7mm F.O. grade : ISO 8217 Revolutions : 1000min F.O. temp. : 40 degC (104 degF) 2.5.1.2. Inspection of F.O. Feed Pump Pressure & delivery volume figures at conditions below: Conditions: (1) Check for the abnormal flaws and chipping on the bevel gear face. If found to be abnormal, replace the whole feed pump assembly. (2) Check for the abnormal flaws or wear on the face contacting with the pump case, pump cover, inner rotor and outer rotor. If wear exceeds 0.1mm, replace the whole feed pump assembly. (3) Check for the abnormal wear of the shaft and oil seal moving area.
If wear exceeds 0.05mm in depth, replace the whole feed pump assembly. (4) When no abnormality was found, just replace the molded ring and seal washer and re-assemble. (5) After install the fuel injection pump, operate the fuel injection pump to check that no oil leaks from each part. 19 YPD-MP2 YPD-MP4 Suction Head （ｋPａ） -10 Std. Delivery Pressure （MPａ） 0.4-0.5 0.6-0.7 Std. Delivery Volume （cm3/min） 500 600