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Home >> Porsche >> 2011 >> 911 Speedster >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 13 - Engine - CRANKGEAR, Pistons -- CARRERA (997) >> WM 134837 Disassembling And Assembling Crankshaft (Turbo Coupe, Turbo CABRIO, Gt2) >> Disassembling Crankshaft

Disassembling Crankshaft

CAUTION: Ingress of dirt
  • Danger of material damage due to blocked oil bores/oil ducts.

→ Absolute cleanliness is essential when working on the engine.

→ Lay removed engine parts on a clean base and make sure to cover them.

→ Use the cover for dust protection when fitting the engine NR.165  on the engine assembly support.

Component overview

Fig 1: Exploded View Of Crankshaft And Connecting Rod
G09816661Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Item Designation Qty. Removal Installation
1 Radial shaft seal 1   Replace
2 Bearing sleeve, bearing 8 1   Replace
3 Round seal 1   Replace
4 Radial shaft seal 1   Replace
5 Circlip 1    
6 Intermediate ring 1   Heat on a heating plate, push on as far as it will go.
7 Timing gear 1 Check toothing for wear, remove if necessary Note reference number, paired with intermediate shaft, only install together, heat on a heating plate, push on as far as it will go. The collar of the timing gear must point to bearing 7
8 Woodruff key 1   Replace
9 Connecting rod nut, M9 x 1.25 12   Replace, observe prescribed tightening torque.
10 Connecting rod 6   Note installation position, weight and classification or matching number for connecting-rod bearing cap.
11 Sputtered smooth bearing shell 6   Only fitted on rod side, two retaining lugs, replace.
12 Connecting-rod cap 6   Note matching number for connecting rod.
13 Smooth bearing shell 6   One locking lug, replace.
14 Connecting rod bolts 12 Check length of bolts. Replace if necessary.
15 Main bearing shells for bearings 2-7 12   Replace
16 Thrust bearing shells 2   Replace
17 Crankshaft 1 Clean carefully and visually inspect for damage.  
18 Roll pin, 6.0 x 16 1   Check that it is seated correctly, replace if necessary.
  1. Pull off roll pin (6 x 16) on crankshaft flange (flywheel side) using a vice-grip wrench.
  2. Fit special tool retainer plate P209a  on crankshaft flange (flywheel side) with three cheese head bolts.
    Fig 2: Identifying Crankshaft With Retainer Plate (P209 A)
    G09816662Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  3. Clamp crankshaft in a vice using the retainer plate P209a  (→ Crankshaft with retainer plate P209 a  ).
  4. Loosen connecting rod bolts (multiple-tooth collar nut) with a socket wrench insert. Take off connecting rod and connecting-rod bearing cap.
  5. Remove old connecting-rod bearing shells.

    Information 

    • Before assembly, make sure to check the elongation of the connecting rod bolts. If the dimension X (38.3 mm) is exceeded, the bolts must be replaced in accordance with the description for installation and removal. 
  6. Measure the length of the connecting rod bolts. To do this, determine the permitted length of the bolt using a depth gauge → Length of connecting rod bolt  .→ Nominal value: 38.3 mm 
    Fig 3: Identifying Length Of Connecting Rod Bolt
    G09816663Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  7. Remove circlip on the intermediate ring with circlip pliers.
    Fig 4: Removing Circlip On Crankshaft Bearing
    G09816664Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  8. Remove spacer ring and timing gear with a conventional puller.
  9. Raise Woodruff key with side cutters and remove it.
  10. Remove crankshaft from the retainer plate and clean it carefully (e.g. with solvent naphtha).
  11. Rinse out lubrication bores on the crankshaft several times with solvent naphtha and blow out with compressed air.
  12. Check bearings on crankshaft (main bearing and connecting-rod bearing) for signs of damage and wear.
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