Question about BMW Cars & Trucks
On any engine you should find timing marks on the end of camshaft which line up with Mark on the crankshaft. TDC is top dead center which is when the first most piston is on it's compression stroke. When you move the crank to TDC the firstmost or number one piston will be on the compression stroke. Turning the camshaft to align with the timing mark on crankshaft will put the engine in proper valve timing.
Posted on May 12, 2019
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.
Posted on Apr 06, 2009
Testimonial: "worked perfect"
SOURCE: timing zx2 escort TDC ?
The cams have a notch in the back of them (facing driver's side) in which fits a flat piece of steel to lock the cams in place. The notches are not exactly centered on the camshaft, meaning that it's impossible to set them 180 degrees out, because then the flat piece of steel that is supposed to be inserted to lock the cams in place simply won't fit because the top of the cylinder head will get in the way. I highly recommend getting a Hayne's or Chiltons manual if you don't already have one. It should explain this process under the Timing Belt Replacement instructions. The cam lock tool (that flat piece of steel) can be purchased at ZXturner.com:
Posted on Jun 29, 2008
The keyway and or the dot on the crank should be line at 12 oclock. You will see a point on the oil pump housing to go by. On the camshaft the pointer will be at 12 oclock also. Use the O on the camshaft to the top at mark. Be sure to look at the dist. roter to make sure that it is pointing at the #1 spark plug wire. I could get 180 out of time. If you do it right it should start up right away. then you can use a timing light to finish it.
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Posted on Dec 13, 2008
SOURCE: 1999 Plymouth Breeze 2.0 SOHC
When changing the timing belt you need to place the cam shaft a TDC( clock wise), then rotate the crankshaft to TDC (clockwise), then back off the crankshaft (counter clockwise) THREE TEETH then back (clockwise) 1/2 tooth before TDC place your timing belt arround the crankshaft- water pump- and camshaft finally putting arround the tensioner pulley, holding 25 flbs of torque on the tensioner pulley to get the correct tension then push up on the hydrolic tensioner and tighten and you should have it.... rotate the crankshaft twice, if the camshaft pulley ends back on TDC then you have it correct.
Posted on Aug 26, 2009
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