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Home >> Porsche >> 2019 >> 718 Boxster Base, Automatic DCT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (13 Engine - Crank Drive, Pistons 2.5L -- 982 - BOXSTER/CAYMAN) >> WM, 135955 - Replacing Crankshaft Sealing Ring - Flywheel Side >> Installing Crankshaft Sealing Ring

Installing Crankshaft Sealing Ring

WARNING: This page is about a different variant/trim than selected.

NOTIFICATION 

Incorrect tool 

Information 

Component overview of insertion tool for crankshaft sealing ring: 

G14944614Courtesy of PORSCHE CARS NORTH AMERICA, INC.

with

  1. Hexagon-head bolt for fitting the crankshaft sealing ring
  2. Sleeve of > 9699 - insertion tool 
  3. Guide pin for guiding > 9699/3 - assembly aid 
  4. Cheese head bolts for securing the insertion tool
  5. >9699/3 - Assembly aid 
  1. Prepare insertion tool for fitting the new crankshaft sealing ring.
    1. 1.1 If not already installed, install > 9699/3 - assembly aid  in > 9699 - insertion tool  .
      1. 1.1.1 Unscrew hexagon-head bolt from > 9699 - insertion tool  and remove assembly aid.
      2. 1.1.2 > 9699/3 - Assembly aid  must be inserted into > 9699 - insertion tool  .
      3. 1.1.3 > 9699/3 - Assembly aid  must be secured in > 9699 - insertion tool  using a hexagon-head bolt.
    2. 1.2 Remove any small burred spots or damaged areas on the insertion tool using a suitable tool, e.g. a needle-point file.
      1. 1.2.1 Then clean off insertion tool using a suitable tool, e.g. an oilstone or polishing cloth.
        WARNING: Caustic fluids 
        • Danger of chemical burns 
          • → Wear personal protective gear.
          • → Ensure that there is good ventilation.
          • → Avoid contact with caustic fluid.
          • → If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.
      2. 1.2.2 Remove dirt on the insertion tool using a clean, lint-free cloth soaked in solvent naphtha or acetone.
    3. 1.3 Fit support sleeve -1-  on insertion tool.
      1. 1.3.1 Fit support sleeve -1-  on > 9699/3 - assembly aid  with the collar facing out.
      2. 1.3.2 Unscrew hexagon-head bolt as far as required until the support sleeve -1-  is flush -arrow-  with the > 9699/3 - assembly aid  .
    G14944615Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fitting support sleeve on insertion tool

    CAUTION: Damage to the sealing lip. 
    • Leaks 
      • → The crankshaft flange and tools must be perfectly clean and free of grease.
      • → The sealing ring must be fitted dry, i.e. no oil, grease or other lubricants can be used.
      • → The crankcase bore must not be oiled.
      • → The sealing ring can only be positioned on the assembly tool using the supporting sleeve.
      • → The new crankshaft sealing ring (PTFE) is supplied on a supporting sleeve as a spare part.
      • → Do not remove the sealing ring from the supporting sleeve.
  2. Slide new crankshaft sealing ring -1-  onto support sleeve -2-  on the > 9699/3 - assembly aid  of the insertion tool.
    G14944616Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Crankshaft sealing ring with support sleeve on

  3. Fit insertion tool on crankshaft flange.
    1. 3.1 Fit insertion tool on the crankshaft flange and screw in cheese head bolts -arrows-  on the crankshaft flange.
    2. 3.2 Tighten cheese head bolts -arrows-  on the insertion tool.
    G14944617Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Securing insertion tool to crankshaft flange

    Information 

    After pulling in the crankshaft sealing ring, leave the insertion tool fitted on the flange of the crankshaft for about 3 minutes so that the sealing lip of the crankshaft sealing ring can settle into position.

  4. Pull in new crankshaft sealing ring.
    1. 4.1 Screw hexagon-head bolt in clockwise as far as it will go, thereby pulling the new crankshaft sealing ring into the crankshaft housing. > Inserting crankshaft sealing ring 
    G14944618Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Inserting crankshaft sealing ring

    Information 

    After pulling in the crankshaft sealing ring, leave the insertion tool fitted on the flange of the crankshaft for about 3 minutes so that the sealing lip of the crankshaft sealing ring can settle into position.

  5. Remove insertion tool about 3 minutes at the earliest after inserting the crankshaft sealing ring.
    1. 5.1 Unscrew hexagon-head bolt anti-clockwise until the cheese head bolts are still just visible.
    2. 5.2 Unscrew both cheese head bolts from the crankshaft flange and remove insertion tool.
    3. 5.3 Leave support sleeve -1-  on the > 9699/3 - assembly aid  to protect the edges of the tool.

      To replace the support sleeve -1-  if necessary, carefully lever it off at the ventilation bore -arrow-  using a suitable tool.

    G14944619Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Support sleeve on

  6. Check that the crankshaft sealing ring is seated correctly.
    1. 6.1 Measure the distance from the edge of the crankshaft flange to the crankshaft sealing ring at four positions offset by 90° all around the crankshaft flange.

      The distance between the edge of the crankshaft flange and the crankshaft sealing ring must be > Dimension 7 mm +/- 0.3 mm  .

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