Home ReviewsRefund
Home/Audi/A4/Audi A4 B6 (2000-2006)/Repair manual/Mechanical/Valve Dimensions
Contents Wiring diagrams Section: Mechanical All sections

Valve Dimensions Audi A4 B6

Mechanical 12 illustrations ~250 words
WARNINGSodium-filled exhaust valves must not be scrapped without first being properly treated. Using a metal saw, the valves must be cut in half between the shaft center and valve plate. They must not come into contact with water while being cut. After cutting open valves, throw not more than 10 at a time into a bucket of water. Then step back. A sudden chemical reaction will occur during which the sodium filling is consumed. Valves that have been treated in this manner can then be disposed of as normal scrap metal.

Note. Valves must not be refaced. Only hand-lapping is permitted.

Scheme 272

Scheme 272
Scheme 272

Scheme 273

Scheme 273
Scheme 273

Scheme 274

Scheme 274: Engaging Piston Ring Ends
Scheme 274: Engaging Piston Ring Ends

Scheme 275

Scheme 275
Scheme 275
  1. Check whether the piston rings at the camshafts are installed and whether the piston ring ends are engaged with each other.
  2. If necessary, engage the ends of the installed piston rings (arrows), as depicted in the illustration.

Scheme 276

Scheme 276: Special tools and equipment
Scheme 276: Special tools and equipment
  1. VW387 dial gauge holder
  2. Dial gauge

Scheme 277

Scheme 277: Test sequence
Scheme 277: Test sequence
  1. Camshafts removing, see «CAMSHAFTS AND CAMSHAFT ADJUSTERS, REMOVING AND INSTALLING»(ref-197058-S08890454852005101100000)
  2. Remove hydraulic valve lifters.
  3. Insert camshafts into cylinder head and install guide frame.
  4. Secure dial indicator to cylinder head using VW387 dial gauge holder.
  5. Press camshaft to be checked against dial indicator by hand.
  6. Set dial indicator to -0-.
  7. Press camshaft away from dial indicator.
  8. Read clearance.
NewWear limit
0.08 to 0.16 mm0.20 mm

CAMSHAFT AXIAL PLAY SPECIFICATIONS

Scheme 278

Scheme 278: Special tools and equipment
Scheme 278: Special tools and equipment

Scheme 279

Scheme 279
Scheme 279
  1. VW681 extractor lever
  2. T10053 assembly tool

Scheme 280

Scheme 280: Removing
Scheme 280: Removing
  1. Toothed (timing) belt removing, see «TOOTHED BELT, REMOVING AND INSTALLING»(ref-197058-S27623366062005101100000)
  2. Mark installed position of camshaft gears for reinstallation.
  3. Remove camshaft gears. NOTE: In case of leaks of one shaft seal, replace sealing rings at both cylinder heads. Be careful not to damage seating surface when pressing out sealing rings.
  4. Remove camshaft sealing rings using VW681 extractor lever.
  5. Clean seating surfaces.

Scheme 281

Scheme 281: Installing
Scheme 281: Installing
  1. Press in sealing ring for camshaft gear flush to housing using T10053 assembly tool and bolt -1-.
  2. Install toothed belt (adjust timing). See «INSTALLING (ADJUSTING VALVE TIMING)»(ref-197058-S24630182892005101100000) .

Scheme 282

Scheme 282: Special tools and equipment
Scheme 282: Special tools and equipment

Scheme 283

Scheme 283
Scheme 283
  1. T10055 extractor
  2. T40029 locating pin
  3. Drill with plastic brush attachment
  4. Protective glasses
  5. Sealants See Parts catalog

More articles — 3.0L 6-CYL 5V Engine Controls - Engine Code(s): Avk