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i need help setting valve lash - 3.1 MPFI

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  • #16
    Yup, thats correct. Did you measure pre lash on the exhaust pushrods like you did the intake? If its the same, then that is fine.
    Ben
    60DegreeV6.com
    WOT-Tech.com

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    • #17
      what's pre-lash? do you mean tightening the rocker arm nut until tension was felt on the pushrod? (before using the tq wrench). if so then yes...that's how i tightened all 12 of them (making sure the lifters were furthest down in their bores before doing so of course).
      '91 Cutlass Supreme sedan - 3.1 Intercooled Turbo / Getrag HM-282 5-speed - 13psi / lightly modded
      '98 Regal GS - 3800 Series II Supercharged/HM-4T65E-HD - 180* T-stat, otherwise stock


      GM W-body Forums

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      • #18
        Yeah, i just wanted to make sure you didnt just do the intake and assume the exhaust were the same.
        Ben
        60DegreeV6.com
        WOT-Tech.com

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        • #19
          cool thanks for the help everyone. i get paid Friday, and i should have this sucker back in the Cutty with my "new" '89 Getrag 282 sometime next week. in the meantime i need to get busy scrubbing down the timing cover, oil pan, valve covers, plenum blah blah....

          btw does anyone have god910's email address? (just PM me) i need to start buggin him about getting my TGP/5-speed memcal ready....
          '91 Cutlass Supreme sedan - 3.1 Intercooled Turbo / Getrag HM-282 5-speed - 13psi / lightly modded
          '98 Regal GS - 3800 Series II Supercharged/HM-4T65E-HD - 180* T-stat, otherwise stock


          GM W-body Forums

          Comment

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