Question about 1987 Chevrolet S-10 Pickup

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Spark plug wire diagram for a 1987 S10 2.8

I trying to adjust the timing on my truck. I need to know how do I loosen the distributor in order to adjust the timing. And, do I need to disconnect anything else while making timing adjustment?

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  • corral3 Mar 04, 2009

    Thank You for the help. I take it I don't have to disconnect anything else? ie. vaccum line?

  • corral3 Mar 04, 2009

    Thank You Mr. kodiakgriz,

    I do have 2 more ?s for you if you don't mind.

    1. Where is spark plug one. (2.8 6cyl.)

    2. I looked into the dist.clamp wrench and foung that it's a closed end wrench. How do I wrap it around the bolt beneath the distributor?

  • todd jones
    todd jones Feb 27, 2014

    Before adjusting timing you must disconnect a wire in the passenger compartment.This is a tan wire located under glovebox near heater core.

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  • 23 Answers

On the driver side of the distributor is where your blot is it should be a nine sixteenths there is a special wrench you should use if you can. it makes it easier. that is all you need to loosen

Posted on Mar 04, 2009

  • Jesse Collmorgen Mar 04, 2009

    you do need to desconect the vacum line to the distributor.

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