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  • stupid questions about engine building

    okay so no mater how much i research the torque specs and procedures for certain things i cant for the sake of all thats holy get a straight answer so ill ask you guys. 1) what are the torque specs on an oil pan. first im told you need to permatex the corners and torque each bolt to 20. then im told dont permatex and go to 40. then i read on alldata that you permatex near the sides and torque those to 20ish and the rest of the to 100. im confused. questions 2) how do you prime an oil pump? i heard shove vaseline in it somewhere or dump oil in it, but id think it would spill out as soon as you flip the engine over. 3) how do you adjust roller tip rockers? i was told by both neighbors that you tighten them till they just touch the tip of the rocker arm and give it a quarter turn.

    any help would be appreciated, i just cant seem to find straight answers and ive been looking on alldata, haynes manual, and a dozen or so car buddies and no consistencies.
    91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
    85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
    00 Tahoe Z71........Stock
    97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater

  • #2
    umm. what engine

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    • #3
      Originally posted by 1BADAIR View Post
      umm. what engine
      This.

      I'm assuming old school sbc.

      Oil pan torque/RTV use really depends on what kind of gasket you're using.

      Priming the oil pump - never used any sort of grease in it. Leave the intake off and get an actual oil pump primer and prime til you get oil to the top end.

      Rocker arms - You can do engine running or off. On would be loosen the rocker arm nut until you can hear noise, then tighten 90 degrees. Engine off would be wait til the intake valve starts to close, then set the exhaust. Then when the exhaust valve starts to open, set the intake. This assures you're on base circle of the cam.
      2015 Silverado

      Originally posted by JoeliusZ28
      If you need 6 and half grand to break your tires loose you shouldnt be attempting a holeshot.

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      • #4
        I'd be surprised to see more than 15 for an oil pan, but yeah... What engine?
        2000 Trans Am l 1967 Firebird

        sigpic

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        • #5
          sorry forgot 5.7L sbc

          its a 1 piece oil pan gasket.

          is the tool something i can rent from autozone or something?

          and the rocker arms if you did it with the vehicle running do you tighten them until the nut doesnt move anymore before you start it? which method is easier and/or more precise?
          Last edited by TylerT/AZ28; June 30th, 2012, 10:02 PM.
          91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
          85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
          00 Tahoe Z71........Stock
          97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater

          Comment


          • #6
            go to shbox.com and read valve lash adjustments.
            sigpic
            1998 Trans Am Convertible A4 - WS6 hood, WS6 air lid, WS6 rims, drilled/slotted rotors.

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            • #7
              have any old distributors? just take one apart and put a drill on the top side.

              some people say to turn the pushrod while trying to find 0. rocking the rocker slightly until no movement works better.

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              • #8
                before you put the oil pump in, dunk it in oil. Enough will remain inside so it will create suction when you prime the oil.
                When in doubt, Whip it out !

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                • #9
                  When it comes to adjusting the rockers, I'm a huge fan of doing it with the engine running. Dad and I tried to do adjustment on his LT1 while it was in the car and it's VERY subjective to find "zero lash" - if you do it with the engine running, you loosen the nut until you hear the rocker/pushrod clicking. Then you tighten until the clicking goes away. That's zero lash, then you do your preload (1/4th turn to 3/4th turn, depending on who you talk to)

                  On the flip side, if you're building the engine with it on an engine stand, we adjusted my rockers while the intake was off and we could see the pushrods touching the lifters. We followed the method where you do the intake valves all together, then turn it and do the exhaust valves all together. It was easy to do this method with it on the engine stand because you tighten the rocker nut until you see the pushrods apply pressure on the lifter - that's zero lash. Then do your preload. There's a writeup on rocker adjustment here:
                  http://shbox.com/1/4th_gen_tech2.html#adjust_valves
                  Last edited by meissen; July 1st, 2012, 08:18 AM.
                  - Brian Meissen
                  Owner, MiFBody.com
                  Administrator, LTxTech.com


                  1994 Camaro LT1 Transplant - 357ci LT1, cammed, stalled, and driven.
                  2022 Camaro LT1 - "Cherry Bomb 2"
                  Michigan FBody Meet & Greet Car Show 2022
                  June 4th, 2022 - 9am to 3pm!!!
                  The HUB Stadium, Auburn Hills, MI

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                  • #10
                    Originally posted by 1BADAIR View Post
                    have any old distributors? just take one apart and put a drill on the top side.

                    some people say to turn the pushrod while trying to find 0. rocking the rocker slightly until no movement works better.
                    im lost on what you mean by finding 0 and which pushrod?
                    91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
                    85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
                    00 Tahoe Z71........Stock
                    97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater

                    Comment


                    • #11
                      Originally posted by farmington View Post
                      before you put the oil pump in, dunk it in oil. Enough will remain inside so it will create suction when you prime the oil.
                      even if the engine is turned upside down it will keep some in it
                      91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
                      85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
                      00 Tahoe Z71........Stock
                      97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater

                      Comment


                      • #12
                        Pushrod is the tube that goes from your lifter that rides on the cam to the rocker arm that opens the valve.
                        Is your engine in the car or on a stand?
                        What kind of engine do you have SBC? carb or fuel injected?
                        Solid lifters or hydrolic lifters?
                        sigpic
                        1998 Trans Am Convertible A4 - WS6 hood, WS6 air lid, WS6 rims, drilled/slotted rotors.

                        Comment


                        • #13
                          tbi fuel injected 350. i know what a pushrod is i just didnt understand what was meant. hydraulic lifters, Lt1 cam from Brian, dart heads, roller tip rockers.
                          91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
                          85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
                          00 Tahoe Z71........Stock
                          97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater

                          Comment


                          • #14
                            So is the motor on the stand?Is the intake off?where you at in Clinton Twp?

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                            • #15
                              motors on the stand, intakes off, 16 and groesbeck
                              91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
                              85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
                              00 Tahoe Z71........Stock
                              97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater

                              Comment

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