Distributors and Distributor Caps
Chevy Silverado
Chevy 305
Prime Numbers

Where is the number one on the rotor cap?

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2009-01-04 22:47:44
2009-01-04 22:47:44

# 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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On number one terminal, put engine at tdc on 1. If engine/rotor hasn't moved, leave rotor alone.

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Number one cylinder is located driver's side front of engine. With the # 1 piston at TDC on the compression stroke, the rotor will be pointing at #1 plug on cap.Number one cylinder is located driver's side front of engine. With the # 1 piston at TDC on the compression stroke, the rotor will be pointing at #1 plug on cap.

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As on any automobile engine, the rotor turns in a 360 degree circle. When the piston for the number one cylinder is at top dead center on the compression stroke the rotor should point to the number one spark plug tower of the distributor cap.

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Standard is that it is pointing at the number one position on the distributor cap.

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You need to find TDC then remove cap and see where rotor button is pointing.

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there is no hard fast rule here. but typically with the cap off and number one cylinder at TDC on compression stroke. the rotor will point at number one cylinder on the engine.

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all you should have to do is take the distributor cap off, and there it is. answer take the distributor cap off, pull the old rotor off, put the new one on, put the cap back on.

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It's the distributor rotor that you are looking for & it's under the distributor cap. Remove the distributor cap and there you will find the rotor.

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If you will remove the #1 plug, (driver's side front of engine), then turn that cylinder to top dead center, (TDC), on the compression stroke, you can then remove the distributor cap and look at the rotor. The rotor will now be pointing to the #1 plug position. GET THE NUMBER ONE CYLINDER TOP DEAD AND THE ROTOR IN THE DISTRIBUTOR SHOULD BE PIONTING AT IT

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It is inside the distributor, under the cap and rotor.It is inside the distributor, under the cap and rotor.

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It is inside the distributor, under the cap and rotor.It is inside the distributor, under the cap and rotor.

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It is the sensor in the distributor under the cap and rotor.It is the sensor in the distributor under the cap and rotor.

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Failed coil wire, failed rotor, failed capFailed coil wire, failed rotor, failed cap

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I have never heard of this - I don't think that there should ever be oil inside the cap and rotor of any car. If you have oil in the cap or rotor you probably have yourself a messed up situation requiring it necessary to replace both the cap and the rotor.

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Not if all you are doing is replacing the rotor and/or distributor cap. If you are trying to find the correct way to wire the spark plugs then yes it is very important.

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for this task you will need either a compression tester or a "bullet".(go for the tester)also you'll need your firing order. *bring the number one piston to top dead center on a compression stroke.(use the tester for this) *remove the distributor cap and look at which way the rotor is pointing because that will be your number one spot.(also note the rotors rotation pattern either clockwise or counter clockwise) *put the distributor cap back on remembering which way the rotor was pointing.that particular point on the cap will be where you place the number one sparkplug wire. *connect that number one wire to the number one cilynder *now simply follow the pattern and re-attached the wires following the firing order and rotation of the rotor. *(after attaching the number one wire attached the next corresepondend wire next to the number one spot going in the direction that the rotor is turning.) is easier to do than to explain.you'll see.

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A '99 Intrepid doesn't use a distributor, so no cap and rotor.

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the rotor should be pointing towards the number one plug position on the distributor cap, and the engine should be on compression stroke. If its not the motor will be 180 degrees out

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IT SHOULD POINT TO THE NUMBER ONE SPARK PLUG WIRE SET FOR THE CAP. IF YOU MEAN WHICH ONE IS THAT ON THE CAP, GET A CHILTONS MANUAL FROM YOUR LOCAL AUTOPARTS STORE OR LIBRARY(ZEROX THE PAGES THERE) AND FIND THE FIRING ORDER AND IT WILL SHOW YOU THE CAP PICTURE AND WHERE THE NUMBER ONE SHOULD BE ON IT.

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Under the rotor inside the distributor capUnder the rotor inside the distributor cap

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Unscrew the screws holding the cap and lift it up and away from the distributor. Pull the rotor straight up and install the new one.

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Ignition rotor and cap? Remove distributor cap usually clips or screws Rotor should lift off - replace in same position should have a "key" slot to insure proper position Install new distributor cap and transfer wires one at a time to insure proper placement


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