There should be no need to do anything with the distributor as part of a timing belt job, I've done it twice now on my '92 MPV V6. After you installed the belt with all the markings lined up, did you rotate the crankshaft, and if so, how many times? Don't forget that the crankshaft rotates TWO revolutions for every ONE revolution of the camshafts...so if your rotor is pointing exactly opposite from number one, give the crankshaft one more full revolution--all your markings should then be lined up and your rotor should be pointing at number one.
Yes the rotor should be pointing to the #1 cylinder when you are installing the distributor.
The easiest way to find it is to set #1 piston at TDC and see where the rotor is pointing, it should be pointing to number 1 terminal on the distributor cap.
Easiest way to find it is to set #1 piston at TDC and remove the distributor cap to see where the rotor is pointing. It should be pointing to #1 cylinder position in relation to the distributor cap.
#1 should be up for compression. Both valves would be closed. Addendum: The above answer is correct except for one thing; #1 MUST be at the top of the compression stroke if you want the engine to run, and the distributor MUST be pointing at #1 plug wire. Recognize that the distributor will turn slightly as it drops down into the cam gear, so make certain that you accommodate for that. You want the rotor to be pointing to the center of #1 when the distributor is in place.
Standard is that it is pointing at the number one position on the distributor cap.
A distributor is not hard to change as long as you follow some simple rules: (1) Set number one piston at Top Dead Center (TDC) before starting the job. (2) Make marks on the distributor and the engine so you will be able to match the two marks when re-installing the distributor. (3) DO NOT crank or manually rotate the engine while the distributor is out. The rest of the job is removing nuts or bolt and wires in order to pull the distributor out. NOTE: When pulling out and when re-installing the distributor, you will have to rotate it somewhat - just follow the "feel" as you go. PS: You don't want to forget the order of the plug wires to the distributor - it might be a good idea to tape and mark the wires as you pull them. You also want to observe which direction the rotor is pointing before you remove the distributor (an added precaution).
If you are setting the timing with a timing light then it don't matter where the rotor is pointing. But if you are putting the Distributor in then yes. When it is in, It must be pointing to #1 on cap so vaccume advance don't hit the thermostat housing when you adjust the timing with a light.
It depends on how you put the distributor in. If you're asking this question now it probably means that you didn't have the engine at TDC when you took out the old distributor and put in the new one... now you get to track down TDC on the engine (that's when #1 cylinder is at the top of the compression stroke) and find out where the distributor is pointing. Understand that the #1 piston will be at TDC on top of the compression stroke and on top of the exhaust stroke. You need to make sure it's the right TDC. At that point, wherever the distributor is pointing is #1. Unfortunately, not everyone makes sure the distributor is back to factory specs.
To find where number one spark plug wire connects to the distributor, remove the distriutor cap and set number one piston at Top Dead Center (TDC). At TDC, the rotor should be pointing to where number one spark plug wire connects.
Technically, #1 can be at any of the 8 points if the distributor has been replaced and the mechanic didn't install it the same as the factory. #1 on the distributor is wherever the rotor is pointing when #1 cylinder is mechanically ready to fire.
If you are installing the timing chain on a 2.7L, the number one cylinder will not be at TDC. That is normal.If you are installing the timing chain on a 2.7L, the number one cylinder will not be at TDC. That is normal.
make your own number one cylinder prong. Put your number one cylinder at top dead center on the compression stroke. The prong that your distributor rotor is know pointing at is you new number one on your cap. continuing installing your plug wires in the proper firing order in a counter clockwise direction from your new number 1 spark plug wire.