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  1. #1

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    intake and valvetraine torque specs?

    i can't find my haynes manual, and i need the torque specs for the rocker studs, rocker nuts, and the upper and lower intake manifold bolts
    Dan

    1990 Turbo Grand Prix - 5 speed, yellow tops - ~100,000 miles
    1982 Oldsmobile Cutlass Supreme - posi - 103,000 miles
    1997 Grand Prix GTP - stock - 110,000 miles
    1996 Suzuki GSX-R1100WT - 1300 big bore - ~30,000 miles

  2. #2
    Forum Moderator mfewtrail's Avatar
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    1990 3.1:

    Lower intake manifold bolts - tighten to 15ft-lbs in sequence, then tighten them to 24 ft-lbs.
    Upper intake manifold - 16 ft-lbs, there is no sequence for these.
    Rocker arm studs - 47 ft-lbs
    Rocker arm nuts - 18 ft-lbs
    Rocker cover/valve cover bolts(just in case you want to torque those too) 89in-lbs(note this is in inch-lbs!)

    Here's a picture for the lower intake manifold torque sequence: http://home.windstream.net/mfewtrail/images/intman.jpg

  3. #3

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    thanks. bonus thanks for the pic.u
    Dan

    1990 Turbo Grand Prix - 5 speed, yellow tops - ~100,000 miles
    1982 Oldsmobile Cutlass Supreme - posi - 103,000 miles
    1997 Grand Prix GTP - stock - 110,000 miles
    1996 Suzuki GSX-R1100WT - 1300 big bore - ~30,000 miles

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