BMW Marine N54 Top Mount Single Precision Turbo Kit Instructions

BMW Marine N54 Top Mount Single Precision Turbo Kit

REMOVING AND INSTALLING OR REPLACING ALTERNATOR (N54, N54T, N55)[REP-REP-RAE9212N54-1231020 – V.7]

Repair instruction

Removing and installing or replacing alternator (N54, N54T, N55)

12 31 020 REP-REP-RAES9212N54-1231020-V.7

1231 020 Removing and installing or replacing alternator (N54, N54T, N55)

Necessary preliminary tasks

• Switch off the ignition.
• Disconnect battery negative lead.
• Remove charge air duct.
• Remove the alternator drive belt.

Note: In order to remove the alternator, it is necessary to remove the air-conditioning compressor for the air conditioning system.

In so doing

• Do not draw off air conditioning refrigerant.
• Do not detach refrigerant lines from A/C compressor.
• Do not remove A/C compressor; instead, remove from bracket only and place to one side.
• Remove A/C compressor from bracket.

Note:

For purposes of improved clarity, illustrations and description show A/C compressor removed.

• Release bolts a few turns until bracket () is loose. not remove bracket (1).
• Tightening torque 64 52 5AZ.
• Unlock connector (1) and remove.
• Remove protective cap and release nut underneath.

Tightening torque

12 42 1AZ	Type	Thread	Tightening specifications	Dimension
1AZ Alternator cable to alternator	N54 / N54T / N55	M8		19 Nm

• Remove the positive battery cable (2).
• Release screws.
• Remove bracket (1) and alternator (2).

Tightening torque

12 31 1AZ	Type	Thread	Tightening specifications	Dimension
1AZ Alternator to crankcase, top	N54 / N54T / N55	M8 x 85		19 Nm

• Assemble engine.

Documents / Resources

BMW Marine N54 Top Mount Single Precision Turbo Kit [pdf] Instructions N54 Top Mount Single Precision Turbo Kit, Single Precision Turbo Kit, Precision Turbo Kit, Precision Turbo, Turbo Kit