Question about 1994 Chevrolet Camaro

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Out of timing on the distruber. need to know where rotor button would set on compression stroke, on 350 lt1 engine

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If im not mistaking, the rotor button should point to #1 cylinder. if its just barely out of time, a simple little trick might work-put distributor cap back on w/wires n everything and loosen the bolt holding the dist. shaft, just enough to twist it clockwise about 2 or 3 millimeters-not a whole lot. but if the dis. turns counter-clock, twist it counter then. but remember- not more than 5 millimeters- barely twist!!!!

Posted on Nov 07, 2010

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Pull the #1 plug(drivers side front) bump it around till compression stroke,use a small probe of some sort to feel when the piston is top dead center,then the rotor is to point to the #1 plug wire(just follow the wire to the cap)

Posted on Nov 07, 2010

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How to install the distributor. 350 vortec/5.7


Get #1 cylinder at top dead center on the compression stroke. With the rotor button on the distributor. Insert the distributor in the hole with the button pointing to #3 cylinder. As it goes down the button will turn. When it is all the way down the button should be pointing to #1 cylinder. Adjust as necessary. Once back together, you'l still need to time it with a timing light.

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If you know the engine's number one cylinder location, you need to put it at TDC of the compression stroke, then you lower the distributor in so that the rotor ends up pointing to the #1 spark plug wire tower on the distributor cap. As you drop it down, the gear on the dist. shaft will mesh with another gear and turn slightly. You want it ending up pointing directly to #1. Get it seated, then you can start the engine and set the timing according to specs with a timing light.

To find TDC of the compression stroke (as opposed to TDC of the exhaust stroke), pull the #1 spark plug out. Put a socket and wrench on the crankshaft pulley and turn it in its normal direction (clockwise), with your finger over the spark plug hole. As the number one piston is rising on its compression stroke, you can feel the pressure build up under your finger. You won't feel any pressure as the piston rises on the exhaust stroke, only on the compression stroke. So when you feel pressure, you know the piston is rising on its compression stroke, and you can turn the crank on around until the piston is at top of its travel-the notch on the crank pulley will now line up with the zero degrees mark on the pointer scale beside the pulley. There, TDC of compression stroke. Now drop in the distributor so the rotor tip lines up with the #1 spark plug tower on the dist. cap.

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Okay, you have to set the number 1 cylinder at TDC of its
compression stroke, and then drop in the distributor so the rotor is pointing to the #1 spark plug wire tower. This should start the car, then you could set the timing to spec with a timing light.

There are two TDC's of a cylinder- the compression stroke and the exhaust stroke. To find the compression stroke, take out the #1 cylinder spark plug. Put your finger over the hole. Now either turn the engine over by hand (with a socket on the crankshaft pulley-turn clockwise), OR have a helper bump the starter over in as short bursts as possible. As soon as you feel pressure on your finger- stop turning- the piston in #1 is rising on its compression stroke. Now check the timing pointer or scale by the crank pulley. Turn the engine slowly on over until the notch or mark on the crank pulley is right on the zero degrees mark on the scale. This is TDC of compression stroke-the piston is at top of travel in the cylinder. Put the distributor in so the rotor will be pointing to the #1 spark plug wire.

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You have to retime it. You put number one cylinder at top dead center (TDC) of compression stroke, then drop in the distributor so the rotor is pointing to number one tower on the distributor cap.
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Right, so you have two TDC's-the exhaust stroke and the compression stroke Top Dead Center-and both occurr when the crank hits the zero mark on the timing scale.
Always set timing with the number one cylinder at TDC on the compression stroke. How do you know which is which? If you have a distributor, the rotor will be pointing to number one cylinder tower, when at TDC of the compression stroke. If you are on the exhaust stroke's TDC, the rotor will be pointing just opposite of number one .
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