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Thread: '99 3.1L M Pushrod Question

  1. #1

    '99 3.1L M Pushrod Question

    Had a delay in reassembling my Monte Carlo's 3.1 from it's oil and coolant dilemma.
    But now, so far I've got both heads on and removed and cleaned the lifters and
    reinstalled them in their original locations. I had previously cleaned and stored the
    pushrods and rocker assemblies (needle bearing style) in their original order.
    When I went to install the first rocker/pushrod, I noticed a couple of the pushrod tips had lost their chrome coating and had flashrust.
    Should I replace all the pushrods or is this normal?
    TIA for any helpful replies.
    jogasz28
    ______________

    '68 RS Camaro,
    Project '69 Camaro in the works
    '95 Monte Carlo Z34 loaded,
    '99 Monte Carlo LS

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  3. #2
    They weren't chrome plated, they just get ultra polished in use, and yes, if left laying around stripped of lube they will corrode. You should have soaked them in some oil and put them in a plastic bag for long term storage. You can use them, but I would take a little ultra fine steel wool and buff the ends off, then blow out the rod with a shot of WD-40 to make sure none of the steel wool is left in the oil hole.
    Last edited by 86FieroSEv6; 08-31-2010 at 11:43 PM.

    If you ain't rock and roll, you must be driving a Honda

  4. #3
    Accelerating uphill in OD Azrael's Avatar
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    I don't think any were ever chromed. The very ends will get very polished from metal to metal contact against the rocker/lifter.
    1995 Grand Am SE

  5. #4
    Quote Originally Posted by 86FieroSEv6 View Post
    They weren't chrome plated, they just get ultra polished in use, and yes, if left laying around stripped of lube they will corrode. You should have soaked them in some oil and put them in a plastic bag for long term storage. You can use them, but I would take a little ultra fine steel wool and buff the ends off, then blow out the rod with a shot of WD-40 to make sure none of the steel wool is left in the oil hole.
    Thanks for the replies.
    I had drilled holes in a 2X6 and put the rocker arms and pushrods in order so they'd go back in original place.

    Question: Do the rocker arm (needle bearing style) bolts need a threadlocker or is oil on the threads good enough before torquing?
    jogasz28
    ______________

    '68 RS Camaro,
    Project '69 Camaro in the works
    '95 Monte Carlo Z34 loaded,
    '99 Monte Carlo LS

  6. #5
    Lightly oiled threads, a wipe with a oily cloth will do, the holes must be clean . . . really clean, and follow the torque spec.

    If you ain't rock and roll, you must be driving a Honda

  7. #6
    I don't have a Metric die set to chase the threads, so I've used round brushes, Q-Tpis and Brake Parts Cleaner to
    clean the heads female threads. The Rocker Arm were cleaned with wire brush and Brake Parts Cleaner. I then soaked
    each of the Rocker Arms in a bowl of oil/Break-in additive, pivoting the bolt back and forth 'til I had no more
    small bubles coming out of the needle bearings. I figured that would prevent a dry start.
    The Rocker bolts were coated with oil from the dip, so i wiped each off before installing. I also used assembly lube on each
    end of the pushrod and on the rocker where it contacts the valve.
    Right now they are all torqued to where the pivot base(?) meets the head. I've still got to do the torque/degree turn
    on each.
    Sound good enough? All the rocker bolts threaded in with the same slight resistance.
    Again, thanks to all for the replies and guidance,
    jogasz28
    ______________

    '68 RS Camaro,
    Project '69 Camaro in the works
    '95 Monte Carlo Z34 loaded,
    '99 Monte Carlo LS

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