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Home >> BMW >> 2021 >> X4 M Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System -- Repair (F98) >> 13 51 Fuel Injection Pump >> 13 51 059 Removing and installing both high pressure pumps >> Installing both the high pressure pumps

Installing both the high pressure pumps

Installing the high pressure pump for cylinders 4 to 6 

NOTE: RISK OF DAMAGE 
Damage to the engine. 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged. 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.
NOTE: TECHNICAL INFORMATION 
The high pressure pump is preloaded by the piston spring and must be removed by alternately unscrewing the screws without tilting.
Before installing the high pressure pump, the cam of the high pressure pump drive must be turned to bottom dead center.
If necessary, turn the engine in the direction of engine rotation on the central bolt of the crankshaft, otherwise there is a risk of piston breakage of the high pressure pump.
NOTE: RISK OF DAMAGE 
Damage to the engine. 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged. 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.
G14927575Courtesy of BMW OF NORTH AMERICA, INC.
G14192527Courtesy of BMW OF NORTH AMERICA, INC.
G14192529Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents.
G14192530Courtesy of BMW OF NORTH AMERICA, INC.
G14192531Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
Damage to the surface. 
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage. 
  • Do not use any metal-cutting tools.
G14192532Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents.
TIGHTENING TORQUES SPECIFICATION

High pressure pump to high pressure pump flange
M6x25
Replace screws.
Joining torque  12 Nm
Tightening torque  90°

Installing the high pressure pump of cylinders 1 to 3 

NOTE: RISK OF DAMAGE 
Damage to the engine. 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged. 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.
NOTE: TECHNICAL INFORMATION 
The high pressure pump is preloaded by the piston spring and must be removed by alternately unscrewing the screws without tilting.
Before installing the high pressure pump, the cam of the high pressure pump drive must be turned to bottom dead center.
If necessary, turn the engine in the direction of engine rotation on the central bolt of the crankshaft, otherwise there is a risk of piston breakage of the high pressure pump.
NOTE: RISK OF DAMAGE 
Damage to the engine. 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged. 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.
G14927575Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents.
G14192529Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents.
G14192531Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: RISK OF DAMAGE 
Damage to the surface. 
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage. 
  • Do not use any metal-cutting tools.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents.
G14192532Courtesy of BMW OF NORTH AMERICA, INC.
G14927573Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

High pressure pump to high pressure pump flange
M6x25
Replace screws.
Joining torque  12 Nm
Tightening torque  90°

Follow-up work