Chain track"> BMW 5 Series - <em style="font-style: normal">Chain track</em> - Crankshaft drive
BMW 5 Series Owners & Service Manuals

BMW 5 Series: Chain track

Crankshaft drive
Comparison between chain track of B58 engine and B58TU engine

  1. Chain track, two-part timing chain drive B58 engine
  2. Chain track, single-part timing chain drive B58TU engine
  1. 6-cylinder engine
  2. Upper timing chain
  3. Timing chain
  4. Lower timing chain
  5. Drive chain, oil vacuum pump

The way the combined oil vacuum pump is driven via a separate drive chain from the crankshaft has not changed compared with the Bx8 engines. Only the change of the chain tracks has changed: The drive chain of the oil vacuum pump is now in front of the timing chain.

Dropping the second timing chain offers the following benefits:

  • Improved acoustics
  • Lower space requirement
  • Reduced weight

Chain tensioner

Crankshaft drive
Chain tensioner, Bx8TU engine

  1. Tensioning rail
  2. Sealing sleeve
  3. Chain tensioner with screw thread

Due to the cylinder head manufacturing process, the chain tensioner now has a sealing sleeve with a height of 12.5 mm instead of a sealing ring. The spring force of the chain tensioner lies between 40 Nm (extended) and 90 Nm (retracted).

    READ NEXT:

     Valve gear

    VANOS VANOS B58 engine VANOS B58TU engine Following the changeover from a two-part chain drive to a single-part chain drive, the camshaft sprockets on the VANOS now need 46 teeth instead of the

     Vacuum Supply

    Vacuum pump Oil vacuum pump, B58/B58TU engine B58 engine, tandem oil pump with integrated vacuum pump B58TU engine, oil pump Vacuum pump Oil pump Vehicles with a gasoline engine and "traditio

     Cooling System

    SEE MORE:

     Climate control

    Automatic climate control Temperature. Climate control operation. Maximum cooling. AUTO program. Recirculated-air mode. Air flow, manual. Air distribution, manual. SYNC program. Defrost and defog window. Rear window defroster. Active seat ventilation. Seat heating. Opening the Climate men

     Quick search

    Concept Depending on the equipment, Points of Interest and addresses can be searched for by entering a sequence of letters or by searching in the navigation data stored in the vehicle. All entries are displayed that include this text string. General information It is possible to search simultaneous

    © 2019-2025 Copyright www.bmw5g30.com