What should the timing mark be on a flywheel?
You should see a mark U|C which is top dead center. Setting it on the BB which is 5 deg advanced (if I remember right) won’t make a noticeable difference. Some references say to set to the BB and some say U|C so pick your poison. Save a life, adopt a senior shelter pet. The three main causes of blindness: Cataracts, Politics, Religion.
How to find the right flywheel and flexplate for your car?
They will accept the same flywheel/flex plate as the early small block engine LSA, LSX (aftermarket), and the new LT1 & LT4 engines have 8 bolt crank flange pattern Early 4.8L & 6.0L LS engines have an extended crank flange that requires a specific flywheel/flex plate The second engine group to go over is the Ford produced V8s.
How big are the cracks on the flywheel?
The leak problem is solved but I found 2 cracks on the flywheel. The cracks are running in radial direction, approx 3/4 inch apart and approx 1/2 inch long and are on the disk surface. I can not tell the depth of them but they are clearly visible.
How big are the flywheels on a Chevy engine?
These bolt patterns became successively smaller with each generation. Gen I and Gen II Chevy engines featured two available diameters of flywheels / flex plates and two corresponding tooth counts of 153 and 168.
You should see a mark U|C which is top dead center. Setting it on the BB which is 5 deg advanced (if I remember right) won’t make a noticeable difference. Some references say to set to the BB and some say U|C so pick your poison. Save a life, adopt a senior shelter pet. The three main causes of blindness: Cataracts, Politics, Religion.
How can I tell if my engine is at TDC?
So, after you get the crankshaft (by flywheel indication or by checking actual piston location), check the camshaft sprocket to make sure the camshaft alignment mark is at the TDC position as well. This procedure can be performed by one person. However, it is much easier to perform with two people.
When does an OT scribe mark line up with a flywheel?
When the end of the dowel is at its highest point, the engine is at TDC for the #1 cylinder. If the engine is not in the car and the clutch housing is removed, the “OT” scribe mark on the flywheel will line up with a cast mark on the back of the upper crankcase section when the #1 cylinder is at TDC.
Where do you put the OT mark on a BMW flywheel?
Rotate the engine until the piston seems to be fully outwards; then rotate the engine back and forth a small amount until you are sure the piston is fully outwards. Then place the flywheel onto the crankshaft so the OT mark is in the timing hole, as you install the flywheel.
So, after you get the crankshaft (by flywheel indication or by checking actual piston location), check the camshaft sprocket to make sure the camshaft alignment mark is at the TDC position as well. This procedure can be performed by one person. However, it is much easier to perform with two people.
When the end of the dowel is at its highest point, the engine is at TDC for the #1 cylinder. If the engine is not in the car and the clutch housing is removed, the “OT” scribe mark on the flywheel will line up with a cast mark on the back of the upper crankcase section when the #1 cylinder is at TDC.
How can I Find my TDC without a timing tab?
When you feel pressure against your finger, the piston is coming up on the compression stroke. Insert a plastic straw about two inches into the spark plug hole. Don’t let go of the straw. Continue to slowly rotate the crankshaft clockwise. You will feel the top of the piston hit the straw and push it up.