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Mike
Mike, ASE Certified Technician
Category: Renault
Satisfied Customers: 38850
Experience:  34 years of vehicle repair / diagnostics
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HOW DO i LOCK THE FLYWHEEL ON MY x reg megan scenic 2l AUTOMATIC?

Customer Question

HOW DO i LOCK THE FLYWHEEL ON MY X REG MEGAN SCENIC 2L AUTOMATIC? i CAN'T FIND ANY WHERE TO LOCATE THE RING GEAR, THANKS GRAHAM.
Submitted: 2 years ago.
Category: Renault
Expert:  Mike replied 2 years ago.

Mike :

Hello and Welcome to justanswer..

Mike :

What is the Full reg of your vehilce ?

Mike :

Im not receiving any reply from you so while the system says you are on line - you may not be...To help you -and save time, I will give you the info you need - as follows :

Mike :

Removal

NOTE: If timing belt is excessively noisy between idle and 2000 rpm a modified timing belt, tensioner pulley and guide pulleys should be fitted. Refer to a Renault dealer.

WARNING: Engines with variable valve timing: Mark camshaft sprockets and camshaft adjusters with chalk or paint prior to timing belt removal to assist alignment on installation.

  1. Raise and support front of vehicle.
  2. Remove:
      • Engine top cover.
      • RH front wheel.
      • RH splash guard.
      • Auxiliary drive belt.NOTE: Auxiliary drive belt(s), tensioner pulley and guide pulley(s) MUST be replaced.
  3. Support engine.
  4. Remove:
      • RH engine mounting.
      • Blanking plugs from rear of camshafts.
  5. Turn crankshaft clockwise until grooves in rear of camshafts are just before horizontally aligned position.NOTE: Grooves located below cylinder head upper face.
  6. Insert timing pin through hole in cylinder block and into crankshaft Fig.11642.2. Tool No.Mot.1054.
  7. Turn crankshaft slightly clockwise until timing pin locates in crankshaft Fig.11642.3. Tool No.Mot.1054.NOTE: Ensure timing pin not inserted into crankshaft web balance hole Fig.11642.3.
  8. Ensure grooves in rear of camshafts horizontally aligned Fig.11642.4.
  9. Lock flywheel with large screwdriver. Slacken crankshaft pulley bolt Fig.11642.5.
  10. Fit setting bar to rear of camshafts Fig.11642.6. Tool No.Mot.1496.
  11. Remove:
  12. Slacken tensioner nut Fig.11642.10.
  13. Allow tensioner pulley to move away from belt.
  14. Remove: NOTE: DO NOT allow crankshaft sprocket to fall off crankshaft.

Mike :

Installation :

NOTE: Timing belt, tensioner pulley and guide pulleys MUST be replaced.

NOTE: There are two types of crankshaft fitted, type A and type B.

  1. Ensure timing pin located correctly in crankshaft Fig.11642.3.NOTE: Ensure timing pin not inserted into crankshaft web balance hole.
  2. Ensure grooves in rear of camshafts horizontally aligned Fig.11642.4. If not: Turn camshafts. Use tool No.Mot.799-01.
  3. Ensure setting bar fitted correctly Fig.11642.6.
  4. Ensure crankshaft keyway Fig.11642.13 located centrally between lugs on engine front housing Fig.11642.14.
  5. Fit new guide pulleys (G1 & G2) Fig.11642.12. Tighten bolts to 50 Nm.
  6. Fit new tensioner pulley Fig.11642.11. Temporarily tighten nut to 7 Nm Fig.11642.10.NOTE: Ensure lug on rear of tensioner pulley located in groove in cylinder head.
  7. Crankshaft type A:
      • Remove crankshaft sprocket. Degrease sprocket. Degrease end of crankshaft. Refit crankshaft sprocket.NOTE: F4R engines with variable valve timing: Ensure inlet camshaft VVT unit locked. If not: Replace VVT unit.
      • Fit timing belt in anti-clockwise direction, starting at crankshaft sprocket. Ensure belt is taut on non-tensioned side.
      • Temporarily tighten crankshaft pulley bolt Fig.11642.5. Leave 2-3 mm clearance between bolt contact face and crankshaft pulley Fig.11642.7.
      • Temporarily tighten tensioner nut Fig.11642.10. Tightening torque: 7 Nm.
      • Mark camshaft sprockets and cylinder head with paint or chalk where indicated Fig.11642.18.
      • Lock flywheel with large screwdriver. Temporarily tighten crankshaft pulley bolt Fig.11642.5. Tightening torque: 20 Nm.
      • Lock flywheel with large screwdriver. Tighten crankshaft pulley bolt Fig.11642.5. Tightening torque: 40 Nm + 110°.
  8. Crankshaft type B:
      • Remove crankshaft sprocket. Degrease sprocket. Degrease end of crankshaft.NOTE: Replace crankshaft sprocket if NOT fitted with integrated key.NOTE: F4R engines with variable valve timing: Ensure inlet camshaft VVT unit locked. If not: Replace VVT unit.
      • Fit camshaft locking tool Fig.11642.19. Tool No.Mot.1509/01.
      • Tighten camshaft locking tool nuts Fig.11642.20. Tightening torque: 80 Nm.
      • F4R: Remove exhaust camshaft sprocket nut Fig.11642.23.NOTE: Replace camshaft stud if loosened when removing nut.
      • F4R: Remove blanking plug from inlet camshaft sprocket Fig.11642.24.
      • Remove camshaft sprockets.
      • Degrease ends of camshafts and camshaft sprockets.
      • Fit crankshaft sprocket.
      • Fit timing belt.
      • Temporarily tighten tensioner nut Fig.11642.10. Tightening torque: 7 Nm.
      • Tighten camshaft locking tool nuts Fig.11642.20. Tightening torque: 80 Nm.
      • F4R: Temporarily tighten nut and bolt of each camshaft sprocket Fig.11642.23 & Fig.11642.25. Tightening torque: 30 Nm.
      • Mark camshaft sprockets and cylinder head with paint or chalk where indicated Fig.11642.18.
      • Turn crankshaft two turns clockwise until just before setting position Fig.11642.18.
      • Insert timing pin through hole in cylinder block and into crankshaft Fig.11642.2.
      • Turn crankshaft slightly clockwise. Ensure timing pin located correctly in crankshaft Fig.11642.3.NOTE: Ensure timing pin not inserted into crankshaft web balance hole.
      • Tighten tensioner nut Fig.11642.10. Tightening torque: 28 Nm.
      • Tighten camshaft locking tool nuts Fig.11642.20. Tightening torque: 80 Nm.
      • F4R: Fit new nut to exhaust camshaft sprocket Fig.11642.23. Tightening torque: 30 Nm + 86°±6°.
      • F4R: Fit new bolt to inlet camshaft sprocket Fig.11642.25. Tightening torque: 100 Nm.
      • F4R: Fit blanking plug to inlet camshaft sprocket Fig.11642.24. Tightening torque: 25 Nm.
      • Lock flywheel with large screwdriver. Tighten crankshaft pulley bolt Fig.11642.5. Tightening torque: 40 Nm + 110°.
  9. All engines:
  10. Turn crankshaft two turns clockwise until just before setting position Fig.11642.18.
  11. Insert timing pin through hole in cylinder block and into crankshaft Fig.11642.2.
  12. Turn crankshaft slightly clockwise. Ensure timing pin located correctly in crankshaft Fig.11642.3.NOTE: Ensure timing pin not inserted into crankshaft web balance hole.
  13. Ensure camshaft setting bar can be fitted easily Fig.11642.6.
  14. Ensure tensioner pulley marks aligned Fig.11642.15 & Fig.11642.16. If not: Repeat tensioning procedure.
  15. Tighten tensioner nut Fig.11642.10. Tightening torque: 28 Nm.
  16. Remove:
  17. Refit blanking plug Fig.11642.1.
  18. Fit new blanking plugs to rear of camshafts.NOTE: DO NOT start engine without auxiliary drive belt fitted as damage may occur to crankshaft pulley.
  19. Install components in reverse order of removal.
Mike :

I'm very pleased to have helped you again - ... let me know if I can help anymore...

Meantime >>> Please click the " Accept button" for me Now - Thank You ...

Please note , you need to press the Accept button even if you are a subscriber to justanswer - thank you .

Kind Rgds - MIKE

Mike :

... Please dont forget the Accept at this point, as thats how Im credited for helping you - thank you.

Customer :

yes all this info is in my timing belt Auto Data book I am myself a car mechanic, but what I needed to know, was how I could gain access to the ring gear, I had looked all round the gear box but could not see any access points, but as the wife needed the car back I had my mate to trailer it to Renault, I'l just have to bite the bulet and let them sort it. But thank you for trying to help, Cheers Customer.

Mike :

Hello again...

Expert:  Mike replied 2 years ago.
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Expert:  Mike replied 2 years ago.
Hello again,

I dont really know why you have had any trouble - the info I have given you - and therefore the info you had, clearly shows there is a blanking plug to be removed - and where it is - and where to insert the locking pin..

I have done endless amounts of these - the info is correct.

It would have saved a lot of time if you had said at the outset that you had info already - but in any event, that info as mentioned is correct...

I would therefore appreciate if you would click the accept smiley for me so that I am credited for my time at least spent helping you - Thank you .

Kind Rgds, MIKE.
Expert:  Mike replied 2 years ago.
Hello again,

I dont really know why you have had any trouble - the info I have given you - and therefore the info you had, clearly shows there is a blanking plug to be removed - and where it is - and where to insert the locking pin..

I have done endless amounts of these - the info is correct.

It would have saved a lot of time if you had said at the outset that you had info already - but in any event, that info as mentioned is correct...

I would therefore appreciate if you would click the accept smiley for me so that I am credited for my time at least spent helping you - Thank you .

Kind Rgds, MIKE.

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Mike
Mike
Renault Mechanic
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34 years of vehicle repair / diagnostics