# 1 piston is on the driver's side front plug. Turn the engine over until that piston is at top dead center, (TDC) on the compression stroke. Now look inside the distributor. The rotor will be pointing at #1. At about 11 o' clock on the distibutor. www.boxwrench.com NEW ANSWER: The first answer is right, and if the Distributor is in correctly when you
look stright down on the cap #1 will be at 5oclock on the cap.
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The # 1 position faces to the REAR and slightly towards the drivers side on the Ford 400 cubic inch V8 engine distributor cap
Remove # 1 Spark Plug Rotate Engine Until #1 Is At Top Dead Center. Both Exh & Intake Valves Closed. Remove Cap, Check Rotor Button. It Will Be Pointing Where # One Goes. If You Are Not This Far Into A Problem. The Number One Cylinder Is The First One On Your Right Facing The Engine. Follow The Wire This Is Where It Is In The Cap.
There should be a # 1 mark on the distributor cap The distributor cap is installed with the # 1 position facing the engine , slightly towards drivers side The distributor rotor rotates COUNTER CLOCKWISE and the spark plug firing order is ( 1 - 5 - 4 - 2 - 6 - 3 - 7 - 8 )
first of all you need to know what kind of engine you are working on
On the distributor shaft, there is a painted mark, aline this with the two holes in the distributor shaft, located just below the gear. Mark the outside of the distributor where the rotor is pointed. On the inside of the distributor, you will find two cast marks, one stamped with an 8 and the other with a 6. For V-8's rotate the rotor until it is aligned with the 8. Now mark this location on the outside of the distributor. They should be about 45 degrees apart. The first mark is the direction the rotor should be pointing when you begin to install the distributor. When the distributor is fully seated, the rotor should be pointed to the 8 and the second mark. Snug the distributor into place and place the distributor cap on and tighten the screws for the cap. The plug wire post should be perpendicular to the center line of the engine.