Don't try this at home !

Discussion in 'General Motoring' started by none, Aug 1, 2003.

  1. none

    none Guest

    Just a friendly warning to anyone who is considering replacing
    the timing belt on their civic\prelude\accord. I read all of the posts
    regarding the dreaded crank pully bolt that is torqued to 3 million
    foot pounds and the various ways of dealing with it. Then I came
    accross this persons site
    http://www.spots.ab.ca/~blanchas/54pontiac/honda.html which seemed to
    offer a reasonable way of dealing with it and so I thought I would
    give this method a shot.
    So, I collected all of the necessary parts: two large bolts
    that fit snug into the crank pully holes and one fatassed steel bar to
    wedge in between them. Next, I pulled out a large Craftsman breaker
    bar, a 17 mm socket, a couple of extentions and started reefing on
    the bolt. I couldn't even budge it. Then, I pulled out the cheater bar
    which gave me a solid 3.5 to 4 feet of leverage (gotta love that
    Craftsman lifetime warranty). After about five minutes of wrestling
    with the breaker/cheater bar I heard a loud crunch (I wasn't sure if
    it was my spine or the bolt) and I was scared to look under the car.
    Turns out I busted the pully; one of those bolts busted right through
    it. Fortunatly, most of the pully remained intact and the car was
    still driveable.
    That bolt is on their FUC#ING tight. Seems the best solution
    for a DIYer like myself (and like most who read this group) is to have
    a garage loosen it. I'm gonna call around tomorrow and see if I can
    find some one to loosen it for me.


    Later,
    Curt ( 88 Civic SE )
     
    none, Aug 1, 2003
    #1
  2. none

    Sean Dinh Guest

    A couple of 5/8" bolt and an angle iron or C channel would do. Cut off the
    head of the bolts. Tighten them on a bar with spacing for the 2 holes.

    Which size bolts did you use?
     
    Sean Dinh, Aug 2, 2003
    #2
  3. none

    none Guest

    I'm not sure of the exact size bolt I used. I just went to my
    local hardware store and purchased the ones that were the tightest
    fit. The method you're describing sounds much better than the one I
    used. However, I don't really have the tools necessary to make the
    tool. It sounds as though you may need a machine shop to accurately
    drill a thick piece of channel iron (that is a brilliant idea though).
    FYI, I took it to a local garage and I gave the mechanic 5
    bucks to crack the bolt for me. Even the mechanic was surprised by the
    amount of power required to loosen the bolt. It took him approximately
    2 minutes using a heavy duty impact wrench. Interestingly enough, when
    the mechanic was loosening the bolt, the crank pulley didn't require
    any bracing. I just pulled up, and then he told me to crank my wheel
    all the way left. Next, he reached under the front wheel well and
    inserted the impact wrench into the service hole. It seems like air
    tools can make mechanical work much easier. It's too bad they are so
    dam expensive.

    Later,
    Curt
     
    none, Aug 3, 2003
    #3
  4. none

    Sean Dinh Guest

    I used a hand drill to drill the holes. It didn't need be exact.

    One reason I don't use impact wrench is because it could tear out the
    thread. Since I used the bar, I could tighten the pulley bolt with
    specified torque.
     
    Sean Dinh, Aug 3, 2003
    #4
  5. none

    BBFool Guest

    For anyone who may ever do this themselves, after trying many of the
    "cheap mans methods" (no impact wrench) I've found the best way is to
    remove the flywheel cover (2 10mm bolts on my civic) and wedge a
    crowbar etc into the flywheel teeth to hold the crank and allow as much
    torque as you want to be applied to that crank bolt. as far as why
    it's so tight, I believe it's from the heat of the system, I tightened
    it one day to 80 ft/lbs, and the next day, after driving the car only a
    couple hours, it took more than 130 to get it off (I had to ditch the
    torque wrench max 130, and get out the breaker bar). Good luck to all
    who attempt this in the future,
    BB
     
    BBFool, Aug 4, 2003
    #5
  6. none

    Rex B Guest

    Worked fine for me, almost exactly as you describe.
    Did you put washers under the bolt heads? Seems like I had to grind a flat on
    each washer so they would sit plat.

    On Fri, 01 Aug 2003 08:22:08 GMT, wrote:

    | Just a friendly warning to anyone who is considering replacing
    |the timing belt on their civic\prelude\accord. I read all of the posts
    |regarding the dreaded crank pully bolt that is torqued to 3 million
    |foot pounds and the various ways of dealing with it. Then I came
    |accross this persons site
    |http://www.spots.ab.ca/~blanchas/54pontiac/honda.html which seemed to
    |offer a reasonable way of dealing with it and so I thought I would
    |give this method a shot.
    | So, I collected all of the necessary parts: two large bolts
    |that fit snug into the crank pully holes and one fatassed steel bar to
    |wedge in between them. Next, I pulled out a large Craftsman breaker
    |bar, a 17 mm socket, a couple of extentions and started reefing on
    |the bolt. I couldn't even budge it. Then, I pulled out the cheater bar
    |which gave me a solid 3.5 to 4 feet of leverage (gotta love that
    |Craftsman lifetime warranty). After about five minutes of wrestling
    |with the breaker/cheater bar I heard a loud crunch (I wasn't sure if
    |it was my spine or the bolt) and I was scared to look under the car.
    |Turns out I busted the pully; one of those bolts busted right through
    |it. Fortunatly, most of the pully remained intact and the car was
    |still driveable.
    | That bolt is on their FUC#ING tight. Seems the best solution
    |for a DIYer like myself (and like most who read this group) is to have
    |a garage loosen it. I'm gonna call around tomorrow and see if I can
    |find some one to loosen it for me.
    |
    |
    |Later,
    |Curt ( 88 Civic SE )
     
    Rex B, Aug 4, 2003
    #6
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