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Assuming the crank hasn't been moved you might need to turn it to top dead centre on cylinder one *before* fitting the head. (Pistons at each end at their highest points).
The timing mark on each cam is a 'dot' on the face of the cog. There will also be marked links on the chain itself that should be lined up with those dots. If you can't see the dots try looking at the back of the cog as it might have been fitted the wrong way round.
Some of the TDCi engines have lock pin holes fitted to each cog to trap it at top dead centre. You can use these as an extra reference method. (See Photo). The drill bits show the lock pin locations.
what damage was incurred when the belt broke if any. why are you changing the cams? if the damage has been rectified and you just want to change the cams find the timing marks on the relevant locations (ie) crankshaft and engine timing mark then the cams should only fit one way as there should be a locating dowl in the cams with timing marks on toothed cog
hi from uk the cambelt/timing belt comes as a kit ie timing belt and tensioner cost £50 here in uk ? it is not too difficult diy job approx 2hours the engine must 1st be set to TDC number 1 firing then at this setting the cam cog mark is a hole drilling in the web of cog and should line up at 12 oclock upwards and using a mirror look thro drill hole and you will see a vertical notch/groove behind on font engineface this is correct mark the crank cog mark lines up with aother mark on engine front face at approx 12 30 pm oclock ? if now set you slacken tensioner bolts and push t/pully away to left from belt ? then remove belt next remove complete tensioner assy after undoing bolts then fit new tensioner push t/pully to left from belt run and lock bolt/s recheck t/marks then fit new belt from c/shaft in anticlockwise rotation when fitted release tensioner bolt and allow to tension belt push t/pully onto belt and lock up tensioner bolts20=27 Nm rotate engine manually for four turns then recheck marks ? should still aligne then re assemble torque crank bolt to =140-150 Nm A LITTLE HINT ? b4 you remove the water pump belt ? slacken thefour 10 mm headed bolts (spanner size) that secure w/pump pully to pump it will be easier to halt rotation of pully if you holt belt tight by hand this pully has to come off to remove c/belt covers same for power steer belt which is also driven from the w/pump pully the power steer pump slide adjuster has a 12 mm bolt you slacken and best done with open end spanner ? after slackening the pump mounting bolts/nuts underneath pump hope you can follow this info/tips wish you good luck from uk
hi from uk to retime cambelt is as follows = the crank cog has a mark which lines up with corresponding mark on front of engine block mark is approx 12-30 o/clock this is TDC No 1 the the cam cog has a small drilled hole in one of the webs just below the cog teeth ? this hole has to be at 12-o/clock position and then using a small mirror if you look through this hole you will see a vertical notch on the front of block this is theTDC mark for cam you then fit belt anticlockwise from c/shaft to cam then round tensioner then release tensionor to tension belt and then lock it up torque both bolts 20 - 27Nm rotate engine manually 4 complete turns clockwise then recheck marks ok /re align ? then re assemble crank pully bolt torque is 140 -150 Nm may i just inform you? that your engine is what is known as interferance that is to say in event of c/belt failure there is more than likely valves to piston contact however this can also occure too if miss timed belt fitted and engine has tried to start ? a compression test on cylinders will confirm if this has happened or not ? hope this helps
hi from uk the cambelt timing marks at TDC are as follows--the crank gear mark is lined up with mark on front of engineblock at approx 10-30 am position the marks are clear as you look ? the cam coghas a dot/pop mark just below teeth this mark is at top ie 12-0'clock position now on cam cog you will also see s hole drilledon the cog web also at 12-o/clock if you look thro this hole (use a mirror ?) the hole lines up to a grooved vertical line at the rear which is on front of engine at this point you fit belt fron crank pully anti clockwise round cam cig then reset tensioner when marks are rechecked with belt fitted/tensioned ? turn engine manually two full rotations clockwise then recheck all mark line up again ? then re assemble ? c/shaft pully bolt tightens to=170-180 Nm hope you notice that the new belt is marked as to its rotation with arrows hope this helps ?best wishes from uk
the cambelt timing marks for clio 1.4 are = the crankshaft cog alignes withmark at 6 o/clock position at TDC No 1 cyl and the cam cog alignes with mark on cyl head at rear of cog at 12 o/clock position belt is fitted anti clockwise from crank then w/pump and then cam cog hope this helps ?
I assume you are talking about valve timing not igntion timing. If that is the case your water pump maybe run by the timing belt. If it is you would need to completely disassemble the timing cover and set the number one cylinder to TDC (top dead center) on the Compression stroke not the exhaust stroke. Once you do that line the timing marks up on cam gears with marks on the side of the head. Then install a new timing belt and tensioner. It is a good idea to always change the pump and belt together. I would suggest buying a manual for your specific vehicle for specific torque specs and exact locations of components and procedures.
hi from uk the cambelt timing marks you req are as follows the crank cog has a dot indent on it and it has to align with same mark on the engine front at approx 12-30 pm position? it is clearly visible then the cam cog you will see a small drilled hole on the cog between the outer toothed and the centre securing bolt ? this hole in cog has to be positioned at top 12 o'clock position then look through this hole and you will see it lines up with a V indent on cyl head this too is clearly visible and advise setting this up b4 fitting c/head for ease ? with these marks set up the engine is at T D C number 1 firing just a note! if you arefitting new belt? it is advisable to replace the tensioner too ! as a kit here in uk belt+tensioner costs £50 if you wish? i can scan and e mail full instructions on cambelt+tensioner strip+renewal proceedure plus detailed diagram of belt set up and relevent marks and tensioner proceedure if you send an e mail address best wishes from n/west uk
hi from uk the camshaft marks at TDC should be both cams at 12o/clock positions in line with pointer on on rear of cams on engine? the crankshaft at TDC marks lined up at approx 11 o/clock thebalance shaft/cog must also aligne with marks on cog and engine these are at 9 o/clock position ? the oil pump cog also is market to aligne with engine mark on engine at approx 11 o/clock all above is prior to fitting new belt+tensioner hope this helps ? best wishes from n/west uk
hi from uk the marks i assume are the timing belt marks ?? to st up turn engine to T D C number 1 cyl fire check the cam cog and view the hole in the cg is at top and the vertical line mark on cam bearing cap are lined up along with the crank mark which should line up with the point on engine this mark is approx at 11 o clock position when viewed if not rotate engineanother rev till both marks line up release tensioner (renew it !) fit new belt from crank anticlockwise to cam then round tensioner push tensioner against belt firmly and torque 43-55 Nm turn engine by hand till marks re aligne ok ?check tension ? ok ? torque crank pully bolt 170-180 Nm reassemble engine hope this helps ?