torque wrench

Discussion in 'PSI Superchargers Tech Questions' started by bobt, Apr 18, 2019.

  1. bobt

    bobt Member

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    looking for a new torque wrench. what do you like, click style, digital, what brand ? thanks bob.
     
    #1
    bobt, Apr 18, 2019
  2. Mike Canter

    Mike Canter Top Dragster
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    I think a lot depends on what you are going to torque. For things like rocker arm stands the smaller SnapOn digital is great. For rods and mains you need the longer click stop SnapOn so you get more leverage when laying under the car same with the one for the heads you need the long SnapOn click stop
     
    #2
    Mike Canter, Apr 18, 2019
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  3. bobt

    bobt Member

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    do you ever get your wrench calibrated . who do you have do it?
     
    #3
    bobt, Apr 18, 2019
  4. Mike Canter

    Mike Canter Top Dragster
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    Usually the manufacturer. I know some of the tool trucks have a device for checking them.
     
    #4
    Mike Canter, Apr 18, 2019
  5. BEDNAR1320

    BEDNAR1320 Member

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    I have both a snap-on 1/2" and a 3/8" digital, love them both.
     
    #5
    BEDNAR1320, Apr 18, 2019
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  6. bobt

    bobt Member

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    thanks for the replies. still using my old Blackhawk but it hasn't been calibrated in over 40 years. think I'll have to chase down the snap-on truck next time he's in town.
     
    #6
    bobt, Apr 18, 2019
  7. aj481x

    aj481x Member

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    Calling the Snap On guy is like feeding a stray dog, once you do you can get rid of them. ;)
     
    #7
    aj481x, Apr 19, 2019
  8. BEDNAR1320

    BEDNAR1320 Member

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    Make sure your wallet is full, it won't be after you leave...….
     
    #8
    BEDNAR1320, Apr 19, 2019
  9. Mike Canter

    Mike Canter Top Dragster
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    You get what you pay for $$$ but how much do you spend on that motor.
     
    #9
    Mike Canter, Apr 19, 2019
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  10. BEDNAR1320

    BEDNAR1320 Member

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    That's why I have the Snap-ons………………...
     
    #10
    BEDNAR1320, Apr 19, 2019
  11. Unlimitedaero

    Unlimitedaero Member

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    Buy CDI torque wrenches, they make them for snap on and I believe they might own them now. Not cheap but cheaper than the tool guy or buy them used. I use a torque wrench calibrator and have it calibrated once a year by “Team Tourque”. It is about what your are doing .So,if you can stretch the bolts and measure them and have specs do it. If not, head nuts etc use a calibrated wrench
     
    #11
    Unlimitedaero, Apr 19, 2019
  12. bobt

    bobt Member

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    thanks i'll look at cdi
     
    #12
    bobt, Apr 19, 2019
  13. lucky devil

    lucky devil Member

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    Make sure when you buy any brand that it is already calibrated . I know it doesn’t make sense , but some brands add not calibrated ....go figure .
    I get mine (Snap on ) calibrated every two years
     
    #13
    lucky devil, Apr 20, 2019
  14. VaOutlaw

    VaOutlaw New Member

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    All my torque wrenches are Snap on ( click type , non digital ) and I have the dealer check them on the truck a couple times a year. Keep in mind as you get older it is harder to see the numbers on the wrench if you are not in a well lit area. I will probably switch over to the digital ones.
     
    #14
    VaOutlaw, Apr 21, 2019
  15. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    I have always liked the Matco torque wrenches over the Snap-On's.

    The Matco has a break over movement when you reach the torque value where the Snap-On has more of a solid click. Just for me it feels easier to stop on the desired torque value with the Matco.

    Not a fan of digital torque wrenches. Just a bad personal experience. Had a snap on go bad torquing heads years ago. Nothing like feeling the stud stretch instead of a click or beep.
     
    #15
    Will Hanna, Apr 23, 2019
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  16. mogenss

    mogenss Member

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    I do all my torque wrenches every year. The normal calibration points are minimum setting, 60 % and max setting.

    The only one that is more than 4% off are the snap on long handled 1/2 for mains and heads.

    Based on the calibrations I have done there is no correlation between price and the accuracy of the torque. But does the torque really have to be within the 5% or so considering lubrication, thread quality etc.
     
    #16
    mogenss, Apr 24, 2019
  17. Mike Canter

    Mike Canter Top Dragster
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    I think the most critical torque is on the rod bolts. You can probably be ok at 5% over but dangerous at 5% under. That’s not based on and scientific data just a WAG
     
    #17
    Mike Canter, Apr 24, 2019
  18. lucky devil

    lucky devil Member

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    I know of someone who was having on going issues with Rods and Head gaskets. He was using an old non -descript Torque Wrench that he would also use for turning over the motor (blown)..... an "investment" was made in a good calibrated torque wrench only to be used for its intended use and a long ratchet to turn the motor over.

    RESULT= Virtually eliminated his issues. :)
     
    #18
    lucky devil, Apr 24, 2019
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  19. bobt

    bobt Member

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    all good info. thanks all
     
    #19
    bobt, Apr 25, 2019

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