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Thread: some notes from a beginner, change rings or change pistons?

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  1. #1
    finished thevalve lapping today, hope i can get an engine stand tomorow

  2. #2
    got the engine stand !!!

    ok so i measured the crank main bearings oil clearence

    here are some pics:

    #5:0.0010-0.00009
    #4:didnt mesure
    #3:0.00007-0.00008
    #2:0.0001-0.00009
    #1:0.00007-0.00008

    #5




    #3




    #2




    #1




    is that with in the spec?

  3. #3
    Join Date
    Mar 2010
    Location
    Paris, TX
    Posts
    511
    Looks to tight of bearing clearance to me. Did you do it with the crank and bearing dry or oiled?
    99' Silverado RCSB Z71: 5.7L Iron LS1, 11.2:1, Custom EPS Cam, Ported 862's,Ported TB, E-Bay Cold Air, E-Bay Long Tubes, Dynomax X-Pipe Exhaust, Electric Fans, Innovative LC-1, Self Built 4L60E, Circle D Pro Single Disc, 4:10 ValueTrac


    http://www.ls1truck.com/forums/image.php?type=sigpic&userid=7887&dateline=1270435  715

  4. #4
    I thought so, but then agine they have some assembly lube, this is my first assembly so i have some mistakes

  5. #5
    I used the wrong one , i should use the green plastigauge, unfortunetly i dont have it!
    orderd it from summit and they sent me the wrong size

    guess i should count on my luck on this one!

  6. #6
    btw rotating assembly is in ,pistons, rods ,crank spin smoothly , cam is also in, oil pump is in

    will torque the connecting rod bolts tomorow, install lifters ,heads,oil pan , and take some pics ,

    hopefully, well tray to drop the motor tomorow and turn the engine

    wish me luck:thumbs:

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