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There should be no reason to 'adjust' the timing belt: it is either fitted and working or not fitted..therefore having to replace one? If you do have to replace one, it is not a job for the faint hearted! You will also have to make sure you have a spare car for back-up.. e.g: if you plan to do this job and get driving in short time think again... You need as much room, both visual and physical around the plastic timing cover, you need to ensure the timing cogs are pre marked (with dots) showing what is called TDC (top dead centre) ENSURE THESE DOTS LINE UP PERFECTLY BEFORE REMOVAL AND AFTER RE-FITTING NEW BELT.. apart from that crucial bit.. it's simply a matter of cleanliness and patience.. remember to loosen the belt tensioner prior and re-tighten after fitting new belt.. DO NOT OVER TIGHTEN!
I have the same problem with my 94 LS, its getting fixed now. The camshaft sensor is telling the computer that the timing is off, meaning your timing belt is either jumping or missing teeth, or it may be going bad. It is a very big job, so I suggest replacing the belt, water pump, tensioner, and maybe the seals and pulleys as well. Are you at a lost of power, has you car ever cut off at a stop red light or when driving?
I had a 2.4 L engine in a caravan and replace the water pump that was controlled by the timing belt.
I was having the same problem, I called my bother in law to help. The crank shaft has to stay perfectly timing on the low end. The cam shaft marks are set exactly one half of a tooth apart. So when looking at it, The left side cam gear mark is a half a tooth higher then the right side. Then you have to try and slip on the belt . That is the easy part. When letting go of the timing belt tensioner the marks should line up perfectly across from each other. You have to take off the belt again and make sure you keep correct tension on the crank shaft so the mark is not moving when you are putting on the belt. There is a web site call Alldata.com. The web site cost a few dollars but it willl give you a detail instructions on how to time the engine with pictures to guide you. This is the same web site the pro's use.
I hope this has been helpful.
Oh, by the way you are lucky because the engine is not an interferrence type , so you can not damage the valves at least. Since you know the oil pump is out of time , check all the spark plugs again , they are probably oil soaked .
By now you probably have the cam/timing belt changed on the vehicle... Here goes anyway: I changed the belt on my 1372cc (identical engine - except for the Turbo and a few odds & ends) just over a week ago by following this simple process:
Disconnect the battery negative terminal Remove the timing belt cover Loosen the alternator drive belt nut, tilt towards engine and remove the belt Remove the crankshaft pulley nut (size 36) - do this by selecting top gear and have an assistant press hard on the brake pedal - remove the pulley -the timing belt is now exposed. Using paint or tippex, simply mark the camshaft sprocket as it lies with the inside timing belt cover, do the same on the crankshaft sprocket & the auxiliary shaft sprocket. Loosen the tensioner nut - remove the timing belt. Check that all pulleys are still in alignment according to your markings and refit the new belt by starting on the crankshaft sprocket (the thin white line across the new belt must align with the factory marking on the crankshaft pulley) and over the auxiliary sprocket and finally over the camshaft sprocket - tension the belt with the tensioner and tighten the tensioner nut. Rotate the engine clockwise by hand making sure the camshaft sprocket rotates twice, check the tension on the belt and make sure the tensioner nut is fully tightened and the belt is secure. Refit the crankshaft pulley, making sure the nut is tightened and refit the alternator belt, timing cover and reconnect the battery.
The same procedure is applicable on the 999cc/1108cc FIRE models as well as the 1301cc Turbo.
If the belt has broken, the valves will be bent. This is an interference engine and there is no escaping it, the head will have to come off. It is not an easy job, belt access is poor, and there is a balance belt as well. Unless you have a lot of experience and tools, I would not recommend attempting this at home.
If your caddy is the 1.9 diesel
The mark you are looking for is on the flywheel. Remove the plastic
plug in top of the bell housing to reveal a small arrow. Rotate engine
until the flywheel TDC mark lines up with this arrow