can I pin the crank

Discussion in 'SRT Hellcat Performance' started by Ray Hunsaker, Sep 26, 2015.

  1. Ray Hunsaker

    Ray Hunsaker Silver Member Hellcat Car Club Gold Supporting Member HCC Charter Member

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    can any body (that knows) help me find out that if I have my crank pulley pinned will that affect any warranty at all. I would do it for preventative for not spinning crank dampened pulley. I can't think it should.
     
  2. SRT_HC_707

    SRT_HC_707 SRT_HC_707 Staff Member

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    Just my .02. Don't touch it with a 10 foot pole. There is probably less than 1% motor failures. If it did fail you have a warranty to protect you.

    Having your crank pinned would only be a warranty issue if something failed that was related to that. The issue is that if the manufacture points to you and denies warranty it's YOUR headache to take legal action etc. to get to resolution. Probably safe to say that FCA has more cash than you do (I don't mean that as an insult).

    Leave it be... If you were to have an issue let FCA correct it.
     
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  3. StellasHC

    StellasHC Platinum Member

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    I'm going to say that if you drill into the factory crank, they will void your warranty. Wrong as that might be. I've seen a few dampers that have spun on the crank. Once it does that engine is junk.

    I'll be pinning mine this winter.
     
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  4. Gixer Jay

    Gixer Jay Silver Member

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    With all that said I would not pin it either with a factory warranty. However, I would be carrying my torque wrench in the car and checking the crank pulley bolt torque regularly. Its torqued to like 235 ft lbs. Just checking the torque would not void the warranty
     
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  5. SRT_HC_707

    SRT_HC_707 SRT_HC_707 Staff Member

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    I'm just speculating but I'd bet that if yours is torqued properly from the factory using the appropriate threadl ocker or whatever they use it will never be an issue. That's a lot of torque. You will need something to keep hold the crank from spinning while torquing. That's a butt load of torque!

    There has to be either an assembly or part defect causing the problem.
     
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  6. cole3986

    cole3986 Gold Member

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    That's crazy talk, check the crank pulley torque setting? How are you going to to that, with all the stuff in the way? and I hope you torque wrench goes that high not to mention the engine will turn before you hit that rating (if A8).
     
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  7. Gixer Jay

    Gixer Jay Silver Member

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    Get to it from the bottom side of the engine and use a Flywheel Lock. There are plenty of torque wrenchs out there that go that high. Snap-On, Mac, heck you can probably find one at Harbor Frieght although I'd be questionable about the accuracy and calibration

    Not crazy, but not for the average Joe technician either


    That's what I was thinking too. Maybe a few drops of red or blue loc-tight was left off in Mexico
     
    Last edited: Sep 26, 2015
  8. StellasHC

    StellasHC Platinum Member

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    Crank pulley bolt has a "diamond encrusted" washer to hold it tight/torqued....lol... Not lying.

    Ill pin mine... Not he first crank I ve pinned. 5 minute procedure.
     
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  9. bolivarshagnasty

    bolivarshagnasty Gold Member

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    Do you use a roll pin or a solid tapered pin?
     
  10. Ray Hunsaker

    Ray Hunsaker Silver Member Hellcat Car Club Gold Supporting Member HCC Charter Member

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    I'm sure the pinning won't be a big deal. but getting to it IS a big deal.
     
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  11. StellasHC

    StellasHC Platinum Member

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  12. Ray Hunsaker

    Ray Hunsaker Silver Member Hellcat Car Club Gold Supporting Member HCC Charter Member

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    I really think that downshifting with the a8 trans these things hit hard so Im thinking that might have somthing to do with it.
     
  13. FreightTrain

    FreightTrain Comfortably Numb

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    i was thinking same... is it happening to both A8s n M6s?
     
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  14. TallCool1

    TallCool1 Gold Member Hellcat Car Club Gold Supporting Member Nat'l Hellcat Tech Advisor HCC Charter Member

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    the snout pulley clutch and boost bypass valve (should) handle that.
     
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  15. cole3986

    cole3986 Gold Member

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    Hm.. I have a 3/8 and 1/2 torque wrenches, I know the 3/8 does go that high, maybe the 1/2" does. Do not have a flywheel lock, have to check to see if the there is a access plate like on the 727 to get at the flywheel/ring gear on the A8. Ok, half crazy talk ;););)
     

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