Question about 1991 Chevrolet Caprice

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Distributor cap how do i time my distributor with out the lite

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  • Mr BrokRench
    Mr BrokRench May 11, 2010

    Hello king1987...i don't see many caprice owners these days... i owned one that had the 9C1 Police Package.
    Could you please tell what engine you have? You are wanting to set ignition timing "by ear" without useing an inductive timing light?

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  • Chevrolet Master
  • 6,982 Answers

You cannot get it precise, but you can either put a vacuum gauge on the manifold and advance the timing to the highest vacuum reading, then backing off a little, or, if it's an automatic, run the engine (in drive) up against the brake (called powerbraking) , advancing distributor in small increments till you hear the engine begin to detonate, then backing off a bit.(don't permit anyone to stand in front of the car if using this method!!!) Both ways will get you in the "ballpark" 'till you can get a light on it.

Posted on May 15, 2009

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The timing is not adjustable and it is computer controlled, but the distributor must still be clocked in properly and static timed, and here is how it is done.

There is a mark or notch on the distributor housing that the rotor should be pointing to when the engine is on top dead center. This static timing is all that matters and the computer will be able to control the timing as long as the ignition rotor is in that position when the engine is at top dead center.

1. Place the engine at top dead center.

2. Look under the distributor cap and find where the number one terminal runs under the distributor cap, and where that position on the distributor cap corresponds with the distributor housing, and it should match up to a mark or a notch on the distributor housing.

3. With the engine on top dead center the ignition rotor should be pointing to the mark or notch that is on the distributor housing, if it is not then loosen up the distributor and turn the distributor until the ignition rotor is pointing to the mark or notch on the distributor housing, the engine should now be static timed.

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What is the correct procedure to check and correct the distributor timing.


The distributor is driven directly by the camshaft. The end of the camshaft contains a set of grooves that engage the distributor shaft. These grooves prevent the distributor from being incorrectly installed.


REMOVAL & INSTALLATION

  1. Using masking tape, remove the spark plug wires from the cap and number them for installation as they are removed.
From 1988-onwards, all Honda Civic series models were fuel injected.
  1. Disconnect the vacuum hoses, the primary wire and the high tension wire. If equipped with fuel injection, remove the four prong connector from the crank angle sensor.
  2. Remove the hold-down bolt(s) and pull the distributor from the head.

0900c15280061815.jpg
Fig. : Distributor mounting-1988-91 vehicles


0900c15280061816.jpg
Fig. : Distributor mounting -1992-95 vehicles


0900c15280061817.jpg
Fig. : Pulling the distributor from where it mates to the camshaft at the right side of the valve cover
On CRX with fuel injection, there are three bolts.
  1. Crank the engine until No. 1 piston is at TDC of its compression stroke.
  2. Using a new O-ring, install it on the distributor housing.
  3. On the all models, the distributor drive gear remains engaged when the distributor is removed. To install, align the distributor and turn the shaft until the drive locks and the distributor seats in the cylinder head.
  4. Loosely install the hold-down bolt(s). Tighten the bolt(s) temporarily and replace the cap.
  5. Connect all wires and hoses.
  6. Start the engine and adjust the ignition timing.


0900c15280061819.jpg
Fig. : Remove the distributor vacuum hoses, being careful not to get them confused. If necessary, label the hoses as performed in spark plug wire removal


0900c1528006181c.jpg
Fig. : Unplugging the four-prong connector from the crank angle sensor. Notice the secure snap-connection and water-resistant O-ring seal around the inner circumference


Hope helped with this (remember rated this help) Good luck.

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Engine sluggish


By all means tweak the distributor and adjust the idle to get your vacuum up to where it should be. At the same time have you checked the timing with a timing lite? If you have and it is bang on you may want to consider taking a look at your timing chain in the near future as it may be stretched a little. But before you do that, check your compression. hope that this helps and that you take the time to rate this information.

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take cap off unbolt distributor lift enough to turn rotor place back dont bolt litely just enough to hold distributor down without it poping up on you
place cap back on
now you need manual start and kill switch up in engine compartment turn vehicle over with manual starter switch if runs rough turn distributor till sounds good now time it with radar gun tighten bolts the rest of the way

now for what i described this has a margin of error going 1 to 3 notches to time in either direction from front to back or back to front turning of the distributor rotar
i hope i had made some sense heree695f1c.jpg
or counter clockwise the lifting distributor and turning rotor one tooth to engine crank this is timeing

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