Taming daigraph of fiat strata 1.6 16v

I do not know 4jb1 but what I can suggest is that, first check the direction on which the cams move to. Then move no.1 piston up.If it's a twin cam ,turn the camshaft of inlets and make sure that the knob of the cam is on top of the inlet valve on no.4.the outlet cam knob is on top of no4 outlet valve.Now make sure that when engine turns immediately the inlet will open at no 4.At no 1 piston everything will be already set.Then put your timing chain or belt.Turn the engine slowly with your hand after tighten the tensioner clockwise direction to check if it is running free

no 1 piston tdc
the cam lobes for no 1 piston should in such a position so that a slight turn of the cam shaft one way makes the exhaust start to close and the inlet start to open or the other way the inlet start to close and the exhaust start to open
this is known as valve rock or valve overlap and occurs when the cam shaft is properly timed to the tdc position of the piston
for a twin cam engine the cam lobes position will be the same operation just that the inlet cam rock will be for the inlet cam and the exhaust cam rock will be for the exhaust cam

you should have bought a Chilton or Haynes manual. most cars and trucks are all different and have a set way to set them. if you broke the chain or belt and bent a valve. you will need to do expensive repairs pulling the heads to change valves. not sure what car you have or why you pulled the timing off. so I cant be sure what to tell you.

If the engine is an interference type, you will have some valve and piston damage. Typically the timing marks are on the crank shaft and the cam shaft, under the timing cover.

XL500 XL250 XR600 XR90 All much the same Piston has to be top dead centre on compression stroke there is a mark on fly wheel as well, make sure you don't move it after setting it up. line cam up with valve case there are two horizontal lines on both sides of cam sprocket they face towards you then line it up with the top of engine case horizontal very important make sure the cam lobes are facing up so they won't be putting pressure on valves when tightened down if everything lined up and nothings moved put top on and bolt down. I forgot you got to loosen chain tensioner then retighten after bolted down, then turn engine over slowly couple of times to make sure every thing good and nothing catching or hitting then check valve clearance ex 0.08mm inlet 0.05

when setting up the valve timing it is always done on the exhaust stoke.. Place the piston on TDC and set the valve timing so that the exhaust valve is just closing and the inlet is just opening. Rocking the crank a bit before tdc to a bit after tdc will produce a movement where the exhaust starts to close as the inlet starts to open. This is known as valve rock or valve overlap. The cam modification is of no consequence as the as all that is modified is the valve duration , not when they open or close. With the cam now timed to the crank turn the crank 180 degrees and set the ignition timing to the degrees advanced recommended ( 10-12 degrees bftdc is recommended for starting). Place the HT leads in the correct firing order and when running use a timing light to adjust ignition timing. If you are fitting a new cam then you must bedding in grease and when the motor starts it has to be run at around 2.000rpms for around 10 minutes to set (harden) the cam lobes or else they will wear off very quickly.

timing marks ? bottom pulley with crank keyway pointing upwards and cam ? sorry just cannot remember offhand but this is a valve free engine ,with no1 at TDC the inlet and exhaust valves are pointing up and out on the no1 then if i remember rightly the mark on camshaft gear is pointing directly in line with the right side of the head ? or is that the peugeot ,if i had a memory ? Sorry just cannjot remember but a 94 has a distributor on the back of the cam and the rotor arm will pointing at the no1 plug lead on the cap .

you are in a bit of a bind. Turning the engine over will result in bent valves so do not touch the crank shaft. you have to loose off all the rockers/ cam followers even to the point of removing the cam shaft. having done that remove no1 cylinder spark plug and by the use of a thin piece of wire turn the crank until the piston reaches top dead center. find this by rocking the crank back and forward until the piston dose'n move up or down check for the crank timing mark next replace the cam shaft and position the cam lobes for no1 piston in such a position that the inlet and exhaust valves move slightly up or down when the cam is moved slightly left or right. this is called valve over lap and with the piston on top dead center means that you now have valve timing for the engine. Cam timing marks can be dot on gear to shiny link on chain or if using a belt a dot on tooth lineing up with mould mark or join on head before starting up do a compression check to prove that there are no bent valves. if you are not mechanically minded enough to attempt the valve timing method it may be cheaper in the long term to let a qualified person do the job

opel frontera 2.0 petrol engine i presume,well to be honest i cannot remember but it only has one cam so take the top cover off and look at the valves on no1 cylinder with the piston at the top both inlet and outlet will be pointing upwards and outtwards inlet to the left and exhaust to the right then look for a mark ,i think they have a white paint mark on the timing belt or is that a renault problem is i do so many i cannot remember them all ,or does the pin hole mark line to the left level of the block head or is that the fiat i think it is ,maybe its at the top in line with the crank keyway ,just check the valves that will show you where it should be