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  • Timing chain munching the tensioner...

    It seems my timing chain is lightly grinding the timing chain tensioner. Didn't notice it doing this before the cam swap.
    I replaced the timing chain and tensioner when I did the cam swap.
    Do I need to go back in and change the gears too?

    I am mostly worried about the tensioner material clogging the oil pickup screen.

    Any ideas?
    1997 Chevrolet Camaro v6 - 13.8@104MPH
    1997 Dodge Viper GTS

  • #2
    maybe order one of those double rollers and ditch the tensioner all together. If you think the gears are bad i have a spare set of gears i'll give you. I know there good shape and about 40k on them.

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    • #3
      I might take you up on that... I am still diagnosing a bit more.
      Can you ditch the tensioner with a double roller? I have never heard of that...
      1997 Chevrolet Camaro v6 - 13.8@104MPH
      1997 Dodge Viper GTS

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      • #4
        Yes im pretty dang sure you can ditch the tensioner with a double roller. However you will have to remove your balance shaft. Check the pics in this link at the bottom of the page.

        http://www.3800performance.com/Merch...roduct_Count=2

        It even says "Single Roller Timing Chain with new GM cam chain tensioner (left) vs. Double Roller Timing Chain (right):"

        All the pics I find of the double roller do not have a tensioner installed. And i think the tensioner would not be wide enough to fit on both chains. The double rollers are alot tighter and do not stretch at all. All of the v8's Ive built i ditch the tensioner with a double roller. Im sure its no different in your case.

        Regardless if you would like to try different gears, i do have a spare set that i know are to be good when they were pulled. Just let me know and you can have them, just pay shipping.

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        • #5
          Ok on the same link i gave above, read this. I just found this:

          "The double row set is designed ONLY for engines with the balance shaft removed (which requires plugging an oil feed hole on the rear side of the engine) or disabled (by removing the balance shaft gear). This set has a much tighter fit, so the timing chain tensioner is no longer used. We have found many engines that have had aggressive cams with high load valve springs installed, typically have their timing chain tensioners break after a short period of time, causing cam timing to become inaccurate, and debris to fall into the engine. By eliminating the tensioner, another weak link has been removed."

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          • #6
            I don't really want to remove the balancer. Its a daily driven car. But that would definately eliminate the problem. Damn..

            I think I might jump on those gears. How much do you think for shipping?
            1997 Chevrolet Camaro v6 - 13.8@104MPH
            1997 Dodge Viper GTS

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            • #7
              what springs are you running? 130 lb?

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              • #8
                stock LS1.
                1997 Chevrolet Camaro v6 - 13.8@104MPH
                1997 Dodge Viper GTS

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                • #9
                  never heard of such a light spring chewing up a tensioner. maybe you just got a casting with inferior material, or a super hard chain.

                  the only sure way to get rid of it is the double roller, but you might try a new tensioner and chain if you want to avoid pulling the motor.

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                  • #10
                    Originally posted by AZ3.8Camaro:
                    I don't really want to remove the balancer. Its a daily driven car. But that would definately eliminate the problem. Damn..

                    I think I might jump on those gears. How much do you think for shipping?
                    You don't have to completely remove the balance shaft to use the double roller, just remove the balance shaft gear, and somehow keep the balance shaft from moving.
                    1995 Pontiac Firebird
                    2008 Chevrolet Silverado LT Crew Cab 4x4

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                    • #11
                      Originally posted by Mogobs30th:
                      </font><blockquote>quote:</font><hr />Originally posted by AZ3.8Camaro:
                      I don't really want to remove the balancer. Its a daily driven car. But that would definately eliminate the problem. Damn..

                      I think I might jump on those gears. How much do you think for shipping?
                      You don't have to completely remove the balance shaft to use the double roller, just remove the balance shaft gear, and somehow keep the balance shaft from moving. </font>[/QUOTE]I am worried about the shaking of the motor from not having a balance shaft.

                      I don't think taking th gear off would cause a problem with the shaft moving, if it rotates, it wouldn't matter and I don't think the gear controls the thrust on it.

                      It might be feasible. Anyone have an engine with no balance shaft? How bad is the shaking?
                      1997 Chevrolet Camaro v6 - 13.8@104MPH
                      1997 Dodge Viper GTS

                      Comment


                      • #12
                        Originally posted by AZ3.8Camaro:
                        </font><blockquote>quote:</font><hr />Originally posted by Mogobs30th:
                        </font><blockquote>quote:</font><hr />Originally posted by AZ3.8Camaro:
                        I don't really want to remove the balancer. Its a daily driven car. But that would definately eliminate the problem. Damn..

                        I think I might jump on those gears. How much do you think for shipping?
                        You don't have to completely remove the balance shaft to use the double roller, just remove the balance shaft gear, and somehow keep the balance shaft from moving. </font>[/QUOTE]I am worried about the shaking of the motor from not having a balance shaft.

                        I don't think taking th gear off would cause a problem with the shaft moving, if it rotates, it wouldn't matter and I don't think the gear controls the thrust on it.

                        It might be feasible. Anyone have an engine with no balance shaft? How bad is the shaking?
                        </font>[/QUOTE]I am guessing that you are not planning on removing the engine from the car, if that is the case, it is probably a better idea not to disengage the balance shaft, and get the single roller chain. Ususally, when people remove the balace shaft, they have also upgraded the internals, and had them balanced well enough that the vibrations that would have been created from balance shaft removal are minute. My guess why the balance shaft was installed in the first place was to save on time balancing bottom end parts to exacts in the first place. You can find most everything from either Intense, which I believe stock all the parts you need to do the single roller chain replacement, including cam gears and such.
                        1995 Pontiac Firebird
                        2008 Chevrolet Silverado LT Crew Cab 4x4

                        Comment


                        • #13
                          The balance shaft is there because the 90* v6 cannot be fully balanced by the crank no matter how well it is done. Its a fundamental design problem with the 90* v6, which is one of the worst naturally balanced motors ever.
                          1997 Chevrolet Camaro v6 - 13.8@104MPH
                          1997 Dodge Viper GTS

                          Comment


                          • #14
                            Some stuff I have found:

                            Tensioner:
                            http://www.clubgp.com/newforum/tm.asp?m=1923770
                            http://www.clubgp.com/newforum/tm.asp?m=1259664
                            http://www.clubgp.com/newforum/tm.asp?m=1874482
                            http://www.clubgp.com/newforum/tm.asp?m=2493014
                            http://www.clubgp.com/newforum/tm.asp?m=2269795

                            Balance shaft:
                            http://www.clubgp.com/newforum/tm.asp?m=2239499
                            http://www.clubgp.com/newforum/tm.asp?m=2369241

                            Wondering if this is the cause of my ticking as well.

                            Sounds like the stock tensioner is not lasting with cam upgrades. Guess I gotta look into the double roller also.
                            Matt
                            1998 Mystic Teal Camaro M5
                            Whisper Lid, Pacesetter Headers, Catco Cat, Dynomax Super Turbo, B&M Shifter, BMR STB, LSD, P&P Intakes, GT2 Cam, Comp OE Lifters, 1.7 Roller Rockers, Pushrods, SSM Heads, DHP PowrTuner.

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                            • #15
                              I am pretty sure I will bite the bullet here and install a double roller.
                              The pic of that engine damage got me scared.
                              I will get it done sometime, and post results.
                              I will especially keep you posted Matt, and let you know if it helps.

                              I won't remove the balancer, just the sprocket.
                              I should be ok just leaving it otherwise alone right?

                              Best price I can find is $149 plus $40 from ZZP.

                              [ September 22, 2005, 02:53 AM: Message edited by: AZ3.8Camaro ]
                              1997 Chevrolet Camaro v6 - 13.8@104MPH
                              1997 Dodge Viper GTS

                              Comment

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