Timing belt on my Audi 90 coupe 1988 broke have re-installed a new one but it is not running properly could you please go through the re-timing stages for me and which marks I need to use to re-time, thank you.
There wil be a mark on your camshaft, alternator, igniton coil and driveshaft and on the motor block for each one of them, set them over there and then put the timing belt on, still i would take it to a mechanic for this, because if you do this wrong you might break off a valve inside one or more of the cylinders and that would be more expensive then to have it done right the first time.
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How long does it run? Sure you only changed the serpentine belt? The car would actual even run without the serpentine (or also called accessory belt) since the belt only drives fairly non essential components (AC compressor, alternator, fan, power steering pump. etc).
Check the attached links,instruction and guides, Good luck
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Very possibly OK! These engines are listed as an interference design but they rarely have damage. Most engines will have damage to the valves due to the pistons running into them, On this engine, the risk comes from the valves getting out of time and running into each other. Unless the engine was turning very high revs when the belt broke, the valves are probably OK. You must be very careful not to bend the valves when you are installing the new belt however, because when you're turning the cams to their proper timing, you have to make sure you do it in such a way that they don't hit during that process. You may also find that the belt didn't even break, rather just became derailed. The timing belt tensioners on these engines were faulty and have been updated by chrysler. They are a pain to do and there is a new timing cover to install that fits the new tensioner.
Although a KIA manual will state that this is an interference engine, it is not. I know because I have replaced a shredded timing belt on my used 2000 Sportage to take it home and it ran great. Just recently, the timing idler pulley bolt broke while I was driving causing the belt to come off. I replaced the tensioner pulley and drilled out and re-tapped the idler bolt hole and installed the new idler and the belt (it was only 2 months old at the time) and it runs great again. THESE ARE NOT INTERFERENCE ENGINES!!!! you don't have to tear down the top end of the engine to inspect for any damage and it is very simple to install a timing belt on this motor as long as it is done properly.
If timing belt broke when the engine was running then a belt wont fix your problem as when the belt brakes the valves stop straight away and the crankshaft will still turn over at least 4to6 times adn in that time could AND would bend a couple of valves at least.if
not a lot more problems BUT if you still go ahead with fitting the belt then all the casings are marked to fit the belt and the keyway in crankshaft is always at 12 oclock to start with.. Ron
Danger, Danger, Make sure that timing belt was placed correctly as proper operation is impossible if a mistake was made, also engine destruction can occur if you run a valve into a piston. If you do not have a sevice manual, check with an auto parts store and purchase one. I have had one case where a haynes manual demonstrated fitting a new belt that was 180 degrees off. If there is any question remaining a local audi (not dealership) specialist may give you a hand.
HI,AT WHAT SPEED DID THIS HAPPEN,IF AT IDLE OR VERY LOW SPEED,HAVE A NEW BELT FITTED IF IT RUNS NORMALLY YOU ARE LUCKY,IF IT RUN ROUGH WITH BAD MISFIRE OR NOT STARTING AT ALL THE VALVES ARE BENT,PLEASE LET ME KNOW,ANDY.