See "Myth Busted!"
|If you have
SHOULD be an arrow stamped into both the flywheel and crankshaft.
(photos link to larger images)
These arrows point directly up when #1 cylinder is at TDC (top dead center). Regardless, mount the flywheel to the crankshaft so these 2 arrows coincide, and you've done it correctly. If done incorrectly, the arrows will be 180º opposite each other.
Replacement flywheels and/or crankshafts may not have the arrow marks. If not, then simply turn the crank so #1 & #4 cylinders are at TDC, and mount the flywheel so that the timing marks are on the passenger side of the engine (approx. 9 o'clock as viewed from the front of the engine).
*** NOTE: It has been rumored that some flywheels were incorrectly stamped with the timing marks in the wrong place. If you have one of these, then the timing marks will NEVER line up with the hole in the backing plate, and you'll need to add timing marks to the front of the engine (pulley & timing cover) to facilitate use of a timing light, or get another (correctly marked) flywheel (but also see "Balanced" below).
See: "Checking The Flywheel & Crank", below.
|Camshaft to crankshaft:||There are TWO ways to get this right, and dozens of ways to get it wrong. If you get it even slightly wrong, your engine will most likely not run, much less be time-able. If you get it 180º wrong (with respect to flywheel timing marks) the engine will run fine, but all your timing will have to be done using either #2 or #3 cylinder. The pictures should be self-evident. If you don't already know how to do it right, get a repair manual that explains the procedure (with pictures), or find someone who does know how.|
|Oil pump to camshaft:||The oil pump gear mates with the camshaft driving gear in just the right way, because the oil pump shaft determines the rotational position of the distributor shaft & rotor. I'm not going to re-explain this. The repair manuals do a good job. If you don't already have one, get a manual and read how to do it right.|
|Flywheel to crankshaft||This
is a simple fix, but potentially
not acceptable. See "Balanced"
If you've mounted your flywheel 180º off, use either #2 (or #3) cylinder to set your timing.
|Camshaft to crankshaft||You're up the creek, as there is no workaround for this. You'll have to remove the cam gear and/or chain, rotate the cam, and reassemble the gear/chain in the correct alignment to the crank gear.|
|Oil pump to camshaft||Remove
the distributor cap, loosen the
distributor body, rotate it into
the desired position, and note the position of the rotor.
Place the cap back on the distributor, and see which plug wire post most closely corresponds to the rotor position. Use THAT post for the #1 plug wire, then wire the other posts in the correct sequence.
Retime the ignition.