Results 1 to 12 of 12

Thread: Torque wrench questions

  1. #1
    Join Date
    Oct 2004
    Location
    Cape Cod, MA
    Age
    66
    Posts
    2,601

    Torque wrench questions

    My 1/2" torque wrench click type. It is made by Great Neck. Measures from 10 -150 lbs. (1) If I use an extention short or long will that change the set measured tq rate ? (2) If I use oil on the threads or antiseize on the threads will that change the tq rate ?
    2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
    2003 marauder black 28,000 miles all stock. Garage Queen.
    2004 marauder red daily driver.

  2. #2
    Join Date
    Oct 2004
    Age
    54
    Posts
    372
    An extension won't change the applied torque - your wrench will still apply the torque at which it is set. Keep in mind that that's the tubular extension that keeps the axis of the bolt to be torqued in the same place as it was before.

    Something like a long crowfoot wrench are also called extensions, and they would further multiply the torque, causing you to have to adjust. Maybe someone else can explain that better.

    Adding never seize won't change the torque applied, but because it reduces the friction, it will cause a much higher bolt stretch and thus higher clamping load for the same torque. That is, you'll still be applying X ft lbs to the bolt, but you will be applying more force to the threads at that torque with the lubricant applied - so in many cases, the applied torque should be reduced.

  3. #3
    Join Date
    Oct 2004
    Location
    Cape Cod, MA
    Age
    66
    Posts
    2,601
    Makes sence to me. I just don't understand when the guy at the tire shops uses the impact wrenches & diffenant torque sticks to vary lb rates. Why is that application any different than us using extentins on a torque wrench ? It must be due to the tq setting appplied pressure reguardless of leverage.

    For my understanding 12 in lbs=1 ft lb ?
    Last edited by burt ragio; 07-10-2009 at 07:36 AM. Reason: q
    2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
    2003 marauder black 28,000 miles all stock. Garage Queen.
    2004 marauder red daily driver.

  4. #4
    Join Date
    Nov 2003
    Location
    Horntown, VA
    Age
    65
    Posts
    4,810
    The torque sticks are manufactured to yield/twist at a specified torque range. The tech running the impact can see/feel this and stop the gun at the right range.
    The socket extensions of the straight solid type won't effect the torque setting on your wrench.
    Your math is correct.
    SOLD '03 300A Black - "805" of 7838
    Plate - "EVILMERC"

    I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them.

    Gillom Rogers: [Books is giving Gillom a shooting lesson] Mr. Books, How is it you've killed so many men? My spread wasn't much bigger than yours.
    John Bernard Books: First of all,friend, there's no one up there shooting back at you. Second, I found most men aren't willing, they bat an eye, or draw a breath before they shoot. I won't.

  5. #5
    Join Date
    Feb 2005
    Location
    Parkton, MD
    Age
    57
    Posts
    1,552
    Also, if you want an accurate torque reading, do not rely on the wrench for values within 10% of their minimum and maximum rating. Maybe this rule does not apply to auto, but we used it when we were elbow deep inside a warhead.
    Just another clown on a bike...

    As good as any man, better than none.

    Former owner of a highly modified and very fast Marauder.


    "You CAN fit a square peg into a round hole, all you need is a big enough hammer." -Original

  6. #6
    Join Date
    Feb 2006
    Location
    Niagara Falls, NY
    Age
    39
    Posts
    467
    http://www.specialpatrolgroup.co.uk/...ue/torque.html

    this is for adding a linear extension to the torque wrench.


    You can add an extension perpendicular to the torque wrench and not have to adjust/ compensated the desired torque setting.
    2003 Mercury Marauder "It's seriously been broken more than it's been driven"
    Build date:6/18/02
    Adopted: 4/1/06
    #1548
    Stuff. Plus an Eaton M112 awaiting install. 63k

    2008 Lincoln Navigator L 225k
    1993 Ford Crown Vic HPP "Tank Of Justice III" (TOJ 3) 194k WAP PI swap, J-Mod, Steeda under drives, and stuff 29mpg/578miles per tank

  7. #7
    Are the torque specs you are looking at rated with the threads dry or with lubricant? Generally, using any kind of friction modifier will reduce the torque requirement. As I recall from published articles and from data supplied by ARP and from other sources, using 30 wt oil reduces the torque requirement to something like 80 - 85% and using antisieze can reduce this as to low as 65%. So be careful or you will overstress the fastener.

    Mitch

  8. #8
    Join Date
    Oct 2004
    Location
    Cape Cod, MA
    Age
    66
    Posts
    2,601
    Wow great info. I never realized oil & anti sieze would change specs by such a large percentage.
    I need to change my spark plugs. I understand they are to be tq. at 11 in lbs. Anti sieze is also used. Who makes a torque wrench that would cover these perimeters ? Do most people just use a plain rachet & exercise exteame caution ? Our aluminum heads are not cheap.
    2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
    2003 marauder black 28,000 miles all stock. Garage Queen.
    2004 marauder red daily driver.

  9. #9
    Join Date
    Feb 2006
    Location
    Niagara Falls, NY
    Age
    39
    Posts
    467
    you can get a decent wrench at harbour freight. but, if you're going to be using one alot, i'd recommend a Craftsman or Snap-on wrench.
    2003 Mercury Marauder "It's seriously been broken more than it's been driven"
    Build date:6/18/02
    Adopted: 4/1/06
    #1548
    Stuff. Plus an Eaton M112 awaiting install. 63k

    2008 Lincoln Navigator L 225k
    1993 Ford Crown Vic HPP "Tank Of Justice III" (TOJ 3) 194k WAP PI swap, J-Mod, Steeda under drives, and stuff 29mpg/578miles per tank

  10. #10
    Join Date
    Oct 2004
    Location
    Cape Cod, MA
    Age
    66
    Posts
    2,601
    Would you have a model number ?
    2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
    2003 marauder black 28,000 miles all stock. Garage Queen.
    2004 marauder red daily driver.

  11. #11
    Join Date
    Dec 2002
    Location
    Arizona
    Posts
    2,301
    If you go down to Sears and join the Craftsman Club they'll send you flyers on special sale prices on all kinds of Craftsman stuff. I got all 3 of my Craftsman torque wrenches on sale thru them,matter of fact I was just at Sears the other day and got some tools on sale to replace some of what got stolen during my recent move.You can never have enough tools.
    Member #462
    2004 DTR II
    2005 H-D E Glide Classic
    2009 Super Glide Custom

    "Come See a Fat Old Man Sometime"
    http://www.youtube.com/watch?v=IlB7bz0TrZM

  12. #12
    Join Date
    Dec 2006
    Location
    Southern Maryland
    Age
    40
    Posts
    3,507
    I use the cheapie great neck torque wrenches as well. If the sears and HF stuff are also made in china, there is probably no real difference in accuracy.
    Steve H., Charles County, MD www.carfap.com
    1994 Lincoln Town Car. 98-02 front brakes, P71 steering and sway bars, Eaton swap build underway using TorkTech 4.6 2v intake kit.
    2011 Infiniti M37x
    2004 F250, v10 6 speed manual. ex-US Forest Service truck
    2000 BMW M5
    1976 Jeep DJ5 (postal)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Torque Wrench(s)
    By Shora in forum Shop Talk
    Replies: 29
    Last Post: 04-21-2009, 12:47 PM
  2. This team should invest in a torque wrench!
    By justbob in forum The Lounge
    Replies: 2
    Last Post: 11-09-2008, 02:42 PM
  3. torque with no torque wrench ?
    By burt ragio in forum Community Discussion
    Replies: 12
    Last Post: 04-02-2007, 11:37 AM
  4. Torque Converter Questions
    By Ross in forum Shop Talk
    Replies: 6
    Last Post: 10-31-2005, 09:31 AM
  5. Torque Converter Questions
    By Dan in forum Shop Talk
    Replies: 18
    Last Post: 02-09-2005, 06:21 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •