Thread: new harmonic balancer, now got KR

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  1. #1 new harmonic balancer, now got KR 
    GTX Level Member Juanmiguel's Avatar
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    I replaced the harmonic balancer because I was getting some weird vibration comming from the engine under let's say 20 to 40% acceleration. If I went beyond that, the vibration would go away.

    Anyway I changed the balancer and retainer and it didn't quite solve the vibration issue completely. The problem now is that I've got lots of KR. Around 1 to 5 degrees that show up from 3k to 4k RPM when going WOT from a roll and past 5K RPM both from a roll and from a dig.

    I was running 20.5* of timming virtually knock free since the last time I tunned it in November. I'm not sure if this new KR happened because of the new balancer or not. I only happened to notice the KR because I tried a 3.0 pulley with the balancer change, but it gave me crazy KR, like 7* so I switched back to the 3.1 pulley but still had some KR to my surprise.

    I dropped the timming back to 19 and still seeing some of it. I did a crank CASE learn last night, but it doesn't seem to help either. Gonna check the plugs today or tomorrow to see how they look and I also checked for vacuum leaks and none were found.

    I'm kind of lost on this one. This car has historically had that werid KR issue always in which sometimes I get crazy KR no matter what timming or fueling I use and then for no apparent reason it goes away.

    I also can't hear the engine pinging when this KR shows up. I don't think I've ever heard it ping at all for that matter, I'm not sure how much KR you should have to actually hear it ping.
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  2. #2 Re: new harmonic balancer, now got KR 
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    New or used?
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  3. #3 Re: new harmonic balancer, now got KR 
    GTX Level Member Juanmiguel's Avatar
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    Nevermind, the intercooler didnt have enough water for the pump to move around lmao. I bet that will give you kr XD
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  4. #4 Re: new harmonic balancer, now got KR 
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    Ah, thats fun.

    Flow detect might be a good idea.
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  5. #5 Re: new harmonic balancer, now got KR 
    GTX Level Member Juanmiguel's Avatar
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    yup, the flojet pump is leaking. going to order a new one.
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  6. #6 Re: new harmonic balancer, now got KR 
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    buy bosch?

    Or is it too late?
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  7. #7 Re: new harmonic balancer, now got KR 
    GTX Level Member Juanmiguel's Avatar
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    Not late yet. Theres a brand new bosch up for sale here on the for sale section.
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  8. #8 Re: new harmonic balancer, now got KR 
    Turbo is the way to go. BillBoost37's Avatar
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    Meziere...and the flow detect instructions are in How to. With all the part numbers.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  9. #9 Re: new harmonic balancer, now got KR 
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    Johnson if you can find a cheap one
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