Question about Chevrolet El Camino

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I have already set the intake valves and exhaust valves,now I need to know the valve sittings on a 305 V8 Chevy small block engine.

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  • diandriver_2 May 26, 2011

    It's not the EGR valve sittings.



    I need to know the valve sittings on the valves right under the rocker arms on a 1978 El Camino - 305 V8 small block.

    Please reply; diandriver_20@tds.net

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  • Chevrolet Master
  • 11,800 Answers

Follow this

http://www.ehow.com/how_7512547_set-valves-305-chevy-engine.html

Once that is done there is nothing left to do, the hydraulic tappets will compensate for the gaps that will appear.

Posted on May 26, 2011

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  • Chevrolet Master
  • 17,970 Answers

We are assuming that you are talkin about EGR valve sitting in a 305 V8 engine (5.0L); if this its right, check the next image (click over pic for zoom)...

I have already set the - zjlimited_1286.jpg

Fig. 10: EGR valve mounting-5.0L and 5.7L engines, except 1996-98 models


zjlimited_1287.jpg

Fig. 12: Linear EGR valve mounting-1996-98 4.3L, 5.0L and 5.7L engines


Keep us updated.

Posted on May 25, 2011

  • ZJ Limited
    ZJ Limited May 26, 2011


    In the event of cylinder head removal or any operation that requires
    disturbing or removing the rocker arms, the rocker arms must be
    adjusted.




    1. Adjust the valves on V6 and V8 engines as follows:



      1. Crank the engine until the mark on the damper aligns with the TDC
        or 0 degree mark on the timing tab and the engine is in the No. 1 firing
        position. This can be determined by placing the fingers on the No. 1
        cylinder valves as the marks align. If the valves do not move, it is in
        the No. 1 firing position. If the valves move, it is in the No. 6 firing
        position (No. 4 on V6) and the crankcase should be rotated one more
        revolution to the No. 1 firing position.




      2. With the engine in the No. 1 firing position, the following valves can be adjusted:


        V8 - Exhaust: 1, 3, 4, 8

        V8 - Intake: 1, 2, 5, 7

        V6 - Exhaust: 1, 5, 6

        V6 - Intake: 1, 2, 3



        Back out the adjusting nut until lash is felt at the pushrod, then
        turn the adjusting nut in until all lash is removed. This can be
        determined by checking pushrod end-play while turning the adjusting nut.
        When all play has been removed, turn the adjusting nut in:

        1
        /
        2
        -1
        1
        /
        4
        additional turn (flat lifter)

        3
        /
        4
        -1
        1
        /
        4
        additional turn (roller lifter V8)

        3
        /
        4
        additional turn (roller lifter V6)



        Crank the engine 1 full revolution until the marks are again in
        alignment. This is the No. 6 firing position (No. 4 on V6). The
        following valves can now be adjusted:

        V8 - Exhaust: 2, 5, 6, 7

        V8 - Intake: 3, 4, 6, 8

        V6 - Exhaust: 2, 3, 4

        V6 - Intake: 4, 5, 6







    2. Reinstall the rocker arm covers using new gaskets or sealer.

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