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Audi A4 B5 1.9 TDI AJM Engine: Bolt Tightening Torques - Crankshaft, Bearings, Flywheel, Camshaft

zmyar 12963 7
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  • #1 16232718
    zmyar
    Level 9  
    I am looking for information on the order and tightening torques of 1.9 TDI AJM engine bolts:
    - crankshaft bearings,
    - main bearing covers,
    - connecting rod foot bearings,
    - flywheel bolts,
    - camshaft bearings,
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    #2 16234850
    drdrug
    Level 18  
    Main bearing - new screws - 60 NM + 90 degrees
    Connecting rod bearing - new screws - 30 NM + 90 degrees
    Flywheel:
    60 NM + 90 degrees automatic machine
    Manual 60 NM + 180 degrees
    Camshaft wheel - 3 screws from 25 NM adjustment, central shaft screw 100 NM (I give some glue)
    Central shaft screw - a new 120 NM + 90 degree screw is provided (preferably for thread adhesive)
    Greetings ;-)
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  • #3 16237594
    zmyar
    Level 9  
    Thanks a lot. I have 2 more questions about:
    1. the order of tightening the crankshaft main bushings
    2. torques and sequence of tightening the camshaft bearings
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    #4 16241227
    drdrug
    Level 18  
    Screw on the first and last supports of the shaft, so that the shaft is in the axis and does not damage the sealants sometimes, then the order of tightening is neutral. It's best to screw them all to the end and then a dynamometer and protractor ;-)
    The moment of tightening the shaft bushings is 8NM + 90 degrees, screw them all with your hand and then just like the heads according to the picture below, just not immediately to the end, just a little bit every screw as in the picture, and as the shaft sits and all the bushings will only hurt a moment + degrees :-)
    Audi A4 B5 1.9 TDI AJM Engine: Bolt Tightening Torques - Crankshaft, Bearings, Flywheel, Camshaft
  • #5 16244899
    zmyar
    Level 9  
    Thanks for the advice. You wrote 8 Nm, I think it should be 80Nm?
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    #6 16244977
    moto-kord
    Level 28  
    He wrote well 8 NM + 90 degree camshaft bearing.
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    #7 16245412
    drdrug
    Level 18  
    Buddy where 80 Nm per bolt, probably 8 :D 8 Nm to be caught on the head 90 degrees in this case tightening :) I think you made a mistake with the fight. Regards
  • #8 16686836
    zmyar
    Level 9  
    Assembly completed, engine runs nicely. Thank you all for valuable tips and hints.
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Topic summary

The discussion focuses on the tightening torques and order for various bolts in the Audi A4 B5 1.9 TDI AJM engine. Key torque specifications include: main bearing screws at 60 NM + 90 degrees, connecting rod bearings at 30 NM + 90 degrees, flywheel bolts at 60 NM + 180 degrees (manual) or 60 NM + 90 degrees (automatic), and camshaft bearings at 8 NM + 90 degrees. The tightening sequence for the crankshaft main bushings should start with the first and last supports to ensure proper alignment. The assembly process was confirmed successful by the original poster after following the provided advice.
Summary generated by the language model.
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