Workshop Manuals Factory service & repair Aston Martin
01 00 Introduction02 01 Body system03 02 Frame and mounting04 03 Engine05 04 Suspension06 05 Driveline07 06 Brake system08 07 Transmission09 08 Clutch10 09 Exhaust11 10 Fuel12 11 Steering13 12 Climate control14 13 Information, gauge and warning15 14 Power supply16 15 Vehicle entertainment17 16 Vacuum distribution18 17 Lighting19 18 Electric distribution and electronic control20 19 Electronic features21 20 Appendix and glossary
Aston Martin DB9 Factory Workshop Manual (Issue 2, 2005)04 · 03 Engine
04 · Engine

Bearing Caps

Make
Aston Martin
Model
DB9 Factory Workshop Manual
Year
Issue 2, 2005
Section
Engine Structure › Bearing Caps
03 EngineBearing Caps
  1. Place the camshafts in position, with the timing marks in the positions shown.

The positions shown allow the camshafts to lay at their lowest in the journals.

Diagram showing camshaft positioning with 15° timing marks indicated on both left and right sides.
  1. Work on one cylinder head at a time.
  2. Install all camshaft bearing caps, except the two thrust camshaft bearing caps (No.1 and No. 8 cap) at the front of each camshaft. Loosely secure each cam cap.

Bearing Caps

The bearing caps are numbered and correspond with numbers stamped on the cylinder head adjacent to the journal.

  1. Test install No.1 and No. 8 bearing caps over their thrust flanges. If the bolt holes do not perfectly align, move the camshafts forward or rearward as required until the bearing caps locate correctly. Loosely secure the bearing caps.
  2. Torque down the camshafts.

13.1 Progressively ‘nip’ down all bolts in the sequence shown. Ensure the camshaft bearing caps pull down evenly into contact with the cylinder head.

13.2 In the sequence shown, torque the camshaft bearing caps to 8-12 Nm.

Diagram of cylinder head showing camshaft bearing cap tightening sequence numbered 1 through 28, with an arrow indicating Engine Front.
  1. Repeat from step 10. for the second cylinder head.
  2. Install the timing chains. Perform the camshaft timing procedure
  3. (Refer to ‘Valve Train (03.09)’, page 3-10-1).
  4. Install the timing cover (Refer to ‘Timing Cover’, page 3-11-3).

Parts & tools for this job For 2005 Aston Martin DB9

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.