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Mike
Mike, Technician
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Experience:  Technican - Business owner and Diagnostics for 34 years +..
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audi q7 timing chain marks 3.7

This answer was rated:

audi q7 timing chain marks 3.7

Hello and Welcome to justanswer

I will give all the info you need as follows , inc the written instructions :

Valve timing procedures

 

  • NOTE: If reusing timing chains: Mark direction of rotation on chains.

 

  • Removal/installation of timing chain requires:
      • Engine removal.
      • Transmission removal.
  • Engine at TDC on No.1 cylinder Fig.19614.1.

 

NOTE: Ground tooth on crankshaft sprocket aligned with rear main bearing joint Fig.19614.2.

 

  • Fit camshaft locking tool Fig.19614.3. If not, turn crankshaft 360°.
  • Ensure intermediate shaft sprocket timing marks aligned Fig.19614.4.
  • Remove tensioner(s) to ease timing chain removal/installation.
  • Reset lower timing chain tensioner:
        • Release locking mechanism Fig.19614.5. Use screwdriver.
        • Push tensioner rail Fig.19614.6 against chain tensioner Fig.19614.7.
        • Tighten tensioner bolts Fig.19614.8. Tightening torque: 8 Nm.
    • NOTE: Lower timing chain tensioner bolts Fig.19614.8 MUST only be used once.

 

NOTE: Renew intermediate shaft sprocket bolt.

 

  • Models with mechanical vacuum pump:
      • Ensure high-pressure fuel pump sprocket timing mark at 12 o'clock position Fig.19614.9.
      • Fit high-pressure fuel pump sprocket locking tool Fig.19614.10.
  • Models without mechanical vacuum pump:
      • Ensure notch on high-pressure fuel pump sprocket at 12 o'clock position Fig.19614.11.
      • Fit high-pressure fuel pump sprocket locking tool Fig.19614.12.
  • Set inlet camshaft position actuator as follows:
      • Turn inlet camshaft position (CMP) sensor reluctor fully clockwise as far as stop Fig.19614.13.
  • Fit inlet camshaft sprocket with chain. Align sprocket with hole in camshaft Fig.19614.14.
  • Tighten inlet camshaft position actuator bolt finger tight. Fit new bolt.

 

NOTE: Inlet camshaft position actuator marked 24E.

 

  • Fit exhaust camshaft sprocket with chain. Align sprocket with hole in camshaft Fig.19614.15.
  • Replace camshaft adjuster, if not locked in position.
  • Tighten exhaust camshaft sprocket bolt finger tight. Fit new bolt.

 

NOTE: Exhaust camshaft sprocket marked 32A.

 

  • Ensure timing marks on both camshaft adjusters and on camshaft carrier aligned Fig.19614.16 & Fig.19614.17.
  • Ensure 8 links between timing marks on camshaft sprockets Fig.19614.18.
  • Install tensioner after timing chain installation.
  • Remove high-pressure fuel pump sprocket locking tool Fig.19614.10 or Fig.19614.12.
  • Remove camshaft locking tool Fig.19614.3.
  • Tighten bolt of each camshaft sprocket to 60 Nm + 90° Fig.19614.19.
  • Camshaft rotation can be prevented using 27 mm spanner on hexagon.

 

NOTE: DO NOT use camshaft locking tool to prevent camshaft rotation Fig.19614.3.

 

  • Turn the crankshaft two turns clockwise to No.1 cylinder at TDC Fig.19614.1.
  • Fit locking tool to camshafts Fig.19614.3.
  • Ensure timing marks aligned Fig.19614.16 & Fig.19614.17.

 

 

By all means get back to me if you need ..

Meantime -- Please click on the OK service ( or higher ) rating for me at this point now, Thank you for that... and you can get back to me anytime if you need / wish..

Best Rgds, MIKE.


Please note, you are rating my "answer" - my help to you - not the "system" which can experience delays etc which are not under my personal control - Thank you .

Mike and 2 other Audi Specialists are ready to help you
Customer: replied 4 years ago.

WE REPLACED THE HEAD GASKET WE USED YOUR TIMING MARKS WE DID NOT PULL THE ENGIINE RUNS SMOOTH THEN SURGES CK ENGINE LIGHT COMES ON CODE PO 366 NEED HELP

Customer: replied 4 years ago.
ANY INFORMATION ON WHY CODE PO 366 NO LIGHTS WERE ON BEFORE
Hi again..

OK - Code P0366 is for the cam shaft sensor..

Either, a wiring fault -connections or the sensor itself faulty.

Check the wiring to it doe damage - and indeed that it is connected.. and connected correctly before replacing the sensor.

I hope that helps you further -

Best Rgds, MIKE.
Customer: replied 4 years ago.


THE VOLTAGE TO THE CAM SENSORS ARE WITH IN SPECS IS IT POSSIBLE THE TIMING IS STILL OFF RUNS SMOOTH THEN RUNS ROUGH GIVE IT GAS AND IT RUNS SMOOTH

HI again..

I very much doubt - dont see how the timing is off , not if you have followed the above instructions fully and to the letter. If you havn't , you will have to re check it.

Other than that , you may have voltage to the sensor, but if its faulty in itself for whatever reason, it will need replacing.

Im afraid I don't have any other test data or anything on the Q7...

Best Rgds,... MIKE.

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