1. F4r 730 Timing Guidelines

Cheers lads, thats the positive attitude i wanted to hear. Yes i would usually do all my own work myself; have changed suspension, exhausts and radiators on a few cars, not to mention servicing all my own regularly. Only thing i havn't really tried yet is clutch and belt changes. I have the next 3 months off college and was considering giving the cambelt and auxiliary belt a go. What are the exact specialist tools i would need for changing a cambelt?

I have a large selection of handtools already, but as i've never tried it before, none for changing a cambelt. I presume the best way to go about it would be to take the upper engine mount off, bumper and headlight off and drivers side arch liner off?

Although not strictly necessary, I did as it greatly improves access. You need the tool to lock the cams in position. I got mine from ebay, for a one off use it is fine, if you were doing it everyday you'd want the Renault one as it is stronger.

Ideally you would also loosen the cam pulleys too but you need the cam immobilising tool (80+ quid from Renault) and most people don't do this. See the different procedures in the manual. Do a search on here for the aux detensioning tool. I used a 1/2' to 3/8' adapter with the side filed off. Access to the cam cover is poor and I couldn't get a ratchet in there.

I jacked the engine up and down and used my ratchet spanners with an attachment that allows you to put a socket on them. A 1/4' inch ratchet might fit. What order is it one in exactly?

Take the blanking caps off the end of the cams and rotate the engine from the crank pulley until they are nearly aligned for the tool to go in. Then push the pin in. You can also remove a spark plug and check it is at TDC.

I applied pressue to the pin as I turned the crank the last little bit and it slotted in easily. Just by turning the crank, it will be clear. If the timing is already out they won't line up. In this case just make sure you pin the crank correctly as above and line the cams up when you put the new belt on.

Special tools. Crankshaft timing pin – Renault No.Mot.1054. Camshaft setting bar – Renault No.Mot.1496. Camshaft adjusting wrench – Renault No.Mot.799-01. Camshaft locking tool – Renault No.Mot.1509/01.

Special precautions. Disconnect battery earth lead. DO NOT turn crankshaft or camshaft when timing belt removed. Remove spark 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.

Repair times – hrs. 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. Raise and support front of vehicle. 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. Support engine. Remove:. RH engine mounting. Blanking plugs from rear of camshafts. Blanking plug from cylinder block 1.

Turn crankshaft clockwise until grooves in rear of camshafts are just before horizontally aligned position. NOTE: Grooves located below cylinder head upper face. Insert timing pin through hole in cylinder block and into crankshaft 2. Tool No.Mot.1054. Turn crankshaft slightly clockwise until timing pin locates in crankshaft 3.

Tool No.Mot.1054. NOTE: Ensure timing pin not inserted into crankshaft web balance hole 3. Ensure grooves in rear of camshafts horizontally aligned 4. Lock flywheel with large screwdriver. Slacken crankshaft pulley bolt 5. Fit setting bar to rear of camshafts 6. Tool No.Mot.1496.

Remove:. Crankshaft pulley bolt 5. Crankshaft pulley 7. Timing belt covers 8 & 9.

Slacken tensioner nut 10. Allow tensioner pulley to move away from belt. Remove:. Tensioner nut 10. Tensioner pulley 11. Guide pulleys (G1 & G2) 12. Timing belt.

NOTE: DO NOT allow crankshaft sprocket to fall off crankshaft. 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. Ensure timing pin located correctly in crankshaft 3. Ensure grooves in rear of camshafts horizontally aligned 4. If not: Turn camshafts. Use tool No.Mot.799-01.

Ensure setting bar fitted correctly 6. Ensure crankshaft keyway 13 located centrally between lugs on engine front housing 14. Fit new guide pulleys (G1 & G2) 12. Tighten bolts to 50 Nm. Fit new tensioner pulley 11.

Temporarily tighten nut to 7 Nm 10.NOTE: Ensure lug on rear of tensioner pulley located in groove in cylinder head. 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 is locked within inlet camshaft sprocket (it should not be possible to rotate VVT unit to the left or right 15 ). If not: Replace VVT unit. Fit timing belt in anti-clockwise direction, starting at crankshaft sprocket. Ensure belt is taut on non-tensioned side. Fit new crankshaft pulley 7.

Fit new crankshaft pulley bolt 5. Temporarily tighten crankshaft pulley bolt 5. Leave 2-3 mm clearance between bolt contact face and crankshaft pulley 7. Slacken tensioner nut 10. Turn tensioner pulley clockwise until tensioner marks aligned 16 & 17.

Use 6 mm Allen key 18. Temporarily tighten tensioner nut 10.

Tightening torque: 7 Nm. Mark camshaft sprockets and cylinder head with paint or chalk where indicated 19. Lock flywheel with large screwdriver. Temporarily tighten crankshaft pulley bolt 5. Tightening torque: 20 Nm. Remove timing pin 2. Remove setting bar 6.

Lock flywheel with large screwdriver. Tighten crankshaft pulley bolt 5. Tightening torque: 40 Nm + 110°. Crankshaft type B:.

Remove crankshaft sprocket. Degrease sprocket. Degrease end of crankshaft. NOTE: F4R engines with variable valve timing: Ensure inlet camshaft VVT unit is locked within inlet camshaft sprocket (it should not be possible to rotate VVT unit to the left or right 15 ). If not: Replace VVT unit. Fit camshaft locking tool 20. Tool No.Mot.1509/01.

Tighten camshaft locking tool nuts 21. Tightening torque: 80 Nm. F4P: Remove nut of each camshaft sprocket 22 & 23. F4R: Remove exhaust camshaft sprocket nut 24. NOTE: Replace camshaft stud if loosened when removing nut. F4R: Remove blanking plug from inlet camshaft sprocket 25.

F4R: Remove inlet camshaft sprocket bolt 26. Remove locking tool 20. Remove camshaft sprockets. Degrease ends of camshafts and camshaft sprockets. F4P: Install camshaft sprockets. Finger tighten nut of each camshaft sprocket 22 & 23. F4R: Install camshaft sprockets.

Finger tighten nut and bolt of each camshaft sprocket 24 & 26. Fit crankshaft sprocket. Fit timing belt. Slacken tensioner nut 10. Turn tensioner pulley clockwise until tensioner marks aligned 16 & 17.

Use 6 mm Allen key 18. Temporarily tighten tensioner nut 10. Tightening torque: 7 Nm. Fit camshaft locking tool 20. Tighten camshaft locking tool nuts 21. Tightening torque: 80 Nm.

F4r 730 Timing Guidelines

F4P: Temporarily tighten nuts of each camshaft sprocket 22 & 23. Tightening torque: 30 Nm.

F4R: Temporarily tighten nut and bolt of each camshaft sprocket 24 & 26. Tightening torque: 30 Nm. Remove locking tool 20. Remove setting bar 6.

Remove timing pin 2. Mark camshaft sprockets and cylinder head with paint or chalk where indicated 19. Turn crankshaft two turns clockwise until just before setting position 19. Insert timing pin through hole in cylinder block and into crankshaft 2. Turn crankshaft slightly clockwise.

Ensure timing pin located correctly in crankshaft 3. NOTE: Ensure timing pin not inserted into crankshaft web balance hole. Ensure setting position marks aligned 19. Ensure tensioner pulley marks aligned 16 & 17.

If not: Repeat tensioning procedure. Tighten tensioner nut 10. Tightening torque: 28 Nm. Fit setting bar 6.

Fit locking tool 20. Tighten camshaft locking tool nuts 21. Tightening torque: 80 Nm. F4P: Fit new nuts to camshaft sprockets 22 & 23.

Tightening torque: 30 Nm + 86°±6°. F4R: Fit new nut to exhaust camshaft sprocket 24. Tightening torque: 30 Nm + 86°±6°. F4R: Fit new bolt to inlet camshaft sprocket 26. Tightening torque: 100 Nm. F4R: Fit blanking plug to inlet camshaft sprocket 25.

Tightening torque: 25 Nm. Remove locking tool 20. Remove setting bar 6.

Remove timing pin 2. Fit new crankshaft pulley 7. Fit new crankshaft pulley bolt 5. Lock flywheel with large screwdriver.

Tighten crankshaft pulley bolt 5. Tightening torque: 40 Nm + 110°.

All engines:. Turn crankshaft two turns clockwise until just before setting position 19. Insert timing pin through hole in cylinder block and into crankshaft 2.

Turn crankshaft slightly clockwise. Ensure timing pin located correctly in crankshaft 3.NOTE: Ensure timing pin not inserted into crankshaft web balance hole. Ensure camshaft setting bar can be fitted easily 6. Ensure tensioner pulley marks aligned 16 & 17. If not: Repeat tensioning procedure. Tighten tensioner nut 10. Tightening torque: 28 Nm.

Remove:. Timing pin 2.

Setting bar 6. Refit blanking plug 1. 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. Install components in reverse order of removal.