Question about Cars & Trucks
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Posted on Jan 02, 2017
Fit them to the crank shaft, that gives you the rough positions. Given you have changed the valves in order and properly sprung you can set the bottom pully to the top(12 0'clock) position, noting which piston is at the top of its stroke, or vary it slightly so its at stroke, Check your head against the block and turn the cam so the inlet valve for that chamber is open. do the same with the next piston in your firing sequence, turning the camshaft accordingly, to ensure the inlet valve opens fully. Fit the gasket and tighten the nuts down lightly, set up the timingmarks by eye,fit the belt and by turning the bottom pully you should find there is no resistance between the piston heads and the valve seats, thats why you don't tighten the head down as not to damage the valves if not firing in line. You should be ok though, tighten the head down slowly checking the pistons and valve contact is not an issue, turning the engine with the socket a full revolution with every turn of the bolts. Once fully tightned, before torquing, turn the engine FULLY to ensure there is NO piston/valve contact, then fit all ancillaries, set timing using a standard strobe and the distributer. Hope this helps, it should do, Regards Dave
Posted on Jul 17, 2009
sorry my pet hate hate ,renault electrics ,this is a dealer only job because the vehicle uses advanced encrypted software that not even the dealer has ,its connected via the internet to the factory direct .So pay your money and take your chances
Posted on Jan 17, 2010
SOURCE: WHEN TO CHANGE TIMING BELT
The Renault schedule for timing belts on the Scenic is 72,000 miles or 5 years. This applies to both the petrol and DCI models as both have timing belts not chains.
However, please be aware that it is common knowledge in the trade not to let the interval go past 40,000 miles because these engines are renowned for snapping belts at any time after 40k resulting in serious engine damage.
Haynes (who are renowned for their service manuals on many models) recommend a maximum interval of 36,000 miles between belts on this model which is exactly half that of what Renault say!
This information from Haynes is backed up by experience and reports from the trade on the common and unfortunate experiences of customers experiencing belt breakage at 45 k and below.
Hope this helps. Please do leave a vote for the solution. Thanks.
Posted on Sep 24, 2010
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