Skip to content

How to Replace timing belt on VW Polo 6N 1.7 SDI

Replacement Interval Guide

  • Volkswagen recommend:
  • All models
  • →2000MY: Check condition and width every 10,000 miles or 12 months, whichever occurs first.
  • Lupo
  • →2000MY: Replacement every 40,000 miles.
  • 2001MY→: Replacement every 60,000 miles.
  • PoloAHG/AKU engines
  • →2000MY: Replacement every 40,000 miles.
  • 2001MY→: Replacement every 60,000 miles.
  • PoloAGD/ASX engines
  • Replacement every 60,000 miles.

NOTE: Volkswagen UK recommend the timing belt is replaced every 4 years if the replacement mileage is not reached.

  • The previous use and service history of the vehicle must always be taken into account.

Check For Engine Damage

CAUTION: This engine has been identified as an INTERFERENCE engine in which the possibility of valve-to-piston damage in the event of a timing belt failure is MOST LIKELY to occur. A compression check of all cylinders should be performed before removing the cylinder head.

Repair Times – hrs

Remove & install 2,50

Special Tools

  • Injection pump sprocket locking pin – No.2064.
  • Camshaft setting bar – No.2065A.
  • Two-pin wrench – No.3387.

Special Precautions

  • Disconnect battery earth lead.
  • DO NOT turn crankshaft or camshaft when timing belt removed.
  • Remove glow plugs to ease turning engine.
  • Turn engine in normal direction of rotation (unless otherwise stated).
  • DO NOT turn engine via camshaft or other sprockets.
  • Observe all tightening torques.
  • Check diesel injection pump timing after belt replacement.

Removal

How to Replace timing belt on VW Polo 6N 1.7 SDI
How to Replace timing belt on VW Polo 6N 1.7 SDI
  1. Support engine.
  2. Remove:
      • Insulation shield.
      • Air filter.
      • Auxiliary drive belt.
      • Lower engine steady bar.
      • Timing belt upper cover [1] .
      • Cylinder head cover.
      • Engine mounting.
      • Bracket [2] .
  3. Turn crankshaft to TDC on No.1 cylinder. Ensure flywheel timing marks aligned [3] .
  4. Fit setting bar No.2065A to rear of camshaft [4] . Centralise camshaft using feeler gauges.
  5. Lock injection pump sprocket [5] . Use tool No.2064.
  6. Slacken tensioner nut [6] . Turn tensioner anti-clockwise away from belt. Lightly tighten nut.
  7. Lower engine slightly.
  8. Remove:
      • Water pump pulley.
      • Crankshaft pulley bolts [7] .
      • Crankshaft pulley [8] .
      • Auxiliary drive belt tensioner.
      • Timing belt lower cover [9] .
      • Guide pulley [10] .
      • Timing belt.

    NOTE: Mark direction of rotation on belt with chalk if belt is to be reused.

Installation

IMPORTANT: Timing belt width must not be less than 21 mm.

  1. Ensure flywheel timing marks aligned [3] .
  2. Ensure camshaft setting bar fitted correctly [4] .
  3. Ensure locking pin located correctly in injection pump sprocket [5] .
  4. Slacken camshaft sprocket bolt 1/2 turn [11] .
  5. Loosen sprocket from taper using a drift through hole in timing belt rear cover. Sprocket should turn freely without tilting.
  6. Fit timing belt in anti-clockwise direction, starting at crankshaft sprocket. Ensure belt is taut between sprockets.
  7. Remove locking pin from injection pump sprocket [5] .
  8. Fit guide pulley [10] . Tighten bolt to 25 Nm.
  9. Slacken tensioner nut [6] .
  10. Turn automatic tensioner pulley clockwise until notch and raised mark on tensioner aligned [13] . Use tool No.3387 [12] .
  11. Tighten tensioner nut to 20 Nm [6] .
  12. Ensure flywheel timing marks aligned [3] .
  13. Tighten camshaft sprocket bolt to 45 Nm [11] .
  14. Remove camshaft setting bar [4] .
  15. Turn crankshaft two turns clockwise until timing marks aligned [3] .
  16. Ensure camshaft setting bar can be fitted [4] .
  17. Ensure locking pin can be inserted in injection pump sprocket [5] .
  18. Apply firm thumb pressure to belt. Tensioner marks should move out of alignment [13] .
  19. Release thumb pressure from belt. Tensioner marks should realign [13] . If not: Repeat tensioning procedure.
  20. Install:
      • Timing belt lower cover [9] .
      • Crankshaft pulley [8] .
  21. Tighten crankshaft pulley bolts [7] :
      • (A) Except Lupo – 25 Nm.
      • (B) Lupo – 10 Nm + 90°.
  22. Install components in reverse order of removal.

Related Cars

1 vote

Be First to Comment

Leave a Reply

Your email address will not be published. Required fields are marked *