There are flats on the camshafts, which direction do the arrows point to fit the sprocket to the camshats
You must use a special tool which bolts onto the cylinder head. It is designed to hold the camshafts in the proper position. It goes over the flats on the camshafts to hold the camshafts in the correct position. This tool can be rented. Look on EBay or check with your local Snap On Tools, Mac Tools, or Matco Tools dealers to rent one. See the link below for photos of properly aligned timing marks for your engine.
1994 BMW M42 timing chain alignment marks Google Search
SOURCE: 318 timing chain setting m42 engine with out bmw tools
Remove the cam cover, remove the spark plugs, turn the engine to number 1 TDC, put a pencil in spark plug hole number one and twist the crank back and forth and make doubly sure you are at TDC. Now loosen the four bolts at the front of each cam sprocket, check TDC again with the pencil and rocking the crank, now take the pencil and lay it across the flats at the back of each cam. Twist the cams very carefully so that the pencil sits flat on each cam square. Snug up the sprocket bolts and use the pencil to check TDC again! Now check the cams again. Repeat the procedure until you have the cams flat and the engine at TDC.
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SOURCE: need a engine diagram of a 2004 330ci camshafts
Click this link below to get complete procedure for camshaft and sprockets assembly and dis-assembly.--------- http://technoanswers.blogspot.com/2011/06/2004-330ci-camshafts-and-sprockets.html --------- This should help.Thanks.Helpmech.
SOURCE: timing mark alignment for 92 bmw 325i 2.5L
your cams have a what looks like a square on them . find it and face them with the dimples on them up. then use a flat edged ruler to make sur you have them right. then turn no.1 cylinder top dead center. then take and put your chain on your exhaust sprocket and point the dimple up do the same with the intake. tighten down the torx bolts and recheck! it took me 3 times but its better than the $300+ tools and car runs great. if need be look up some of the e36 groups on line.
SOURCE: 99 bmw 528i dash indicator light,sprocket with ! in it and trans shifting and down shifting hard
That light is telling you to have transmission serviced. not sure if it is the fluid or sensors. that is what a scan tool is for.
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