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Thread: Tightening the damper bolt?

  1. #1
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,398

    Arrow Tightening the damper bolt?

    The harmonic damper bolt must be torqued to 200 ft-lbs during installation. Getting it loose can also be a challenge. Most people use a pry-bar to anchor the flexplate or flywheel while the damper bolt is removed/replaced. Member MJ McCarroll came up with another idea to keep the crankshaft from turning. Some scrap metal and a few minutes with a welder is all it takes. Thanks MJ!


  2. #2
    Join Date
    Mar 2000
    Location
    Windham, ME
    Posts
    2,490

    Default

    My solution for in-truck torquing was very similar - a piece of 1" bar stock with 2 holes drilled in it, bolted to 2 of the dampener bolt holes and allowed to rest against either the ground or the passenger side frame rail. I had to use a couple washers with each bolt to clear the center bolt's washer.
    Phil

    '90 Jeep Wrangler, 4.2l, AX15, Dana 30 & 35 with 3.07s (for now!) 4" Rough Country lift, 33x10.5x15 BFG KM2s

    '91 F350 XLT Lariat crew cab, 2WD SRW, 7.3l IDI, ZF S5-42, 3.55 LSD.

  3. #3
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,294

    Default

    Well after many years of doing the 6.2/6.5 engines I still use the 1/2" impact gun.

    Bust it down until the bolt/washer touch the dampener and are snug then give the wrench about 2 seconds at full power.

    Never ever had one give any issues.

    I use the impact to remove it too.

    Now if one is not really well comfy with the impact, the little ditty that Jim posted is just the ticket.

    Actually there are few places that I use the torque wrench on these engines.

    Main bolts, Rod nuts and head bolts are about it.

    Everything else gets hit with the air impact, ZZIPPP ZIPPPPPPPP.

    Can't go wrong with the torque wrench though.

    Missy
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

  4. #4
    Join Date
    Mar 2000
    Location
    Windham, ME
    Posts
    2,490

    Default

    Can't beat the impact gun, when you have access to air. That's not always the case with me LOL
    Phil

    '90 Jeep Wrangler, 4.2l, AX15, Dana 30 & 35 with 3.07s (for now!) 4" Rough Country lift, 33x10.5x15 BFG KM2s

    '91 F350 XLT Lariat crew cab, 2WD SRW, 7.3l IDI, ZF S5-42, 3.55 LSD.

  5. #5
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,294

    Default

    There are reasons not to use one for sure.

    It takes a FEEL to really use one in soo many places and not get into trouble.

    I have seen guys use them for rods, mains and head bolts, AHHHHHHHHHHH NOOOOOOOOO not gonna happen.

    There are some places that are sacred and should only see the torque wrench and proper numbers all the way.

    Stuff like the Ballancer bolt, flywheel bolts and many other places, I just give them a Buzzzzzz and have never had an issue with them.

    I love air to take stuff apart though

    Missy
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

  6. #6
    Join Date
    Feb 2008
    Location
    Northeast CT
    Posts
    111

    Default

    Will this gun do it... ?
    Attached Images Attached Images
    1886 M1008 CUCV
    GM4 Turbo,DB24911 turned up.
    Raptor 100 lp.
    NV4500(the way they should have come)
    5 inch Redneckmaster Ex
    Autometer Fullsweeps
    Serp Belt conversion. HO WP. Dmax Fan

    Previuosly owned:
    2000 K3500 6.5TD
    1993 K3500 6.5TD
    1983 K5 6.2
    1998 GMC Suburban 2500 6.5TD
    1991 GMC Jimmy 6.2
    1989 GMC Vandura 2500 Hi Top 6.2
    1983 GMC K2500 6.2
    1999 Ford Suerduty 350 7.3PS
    1983 Ford E-350 6.9
    1982 VW Rabbit Diesel

  7. #7
    Join Date
    Feb 2008
    Location
    Northeast CT
    Posts
    111

    Default

    Seriously though I am skittzy so I bought the proper tool. Mac Tools HB installer has the right adapter for the 6.xx
    Attached Images Attached Images
    1886 M1008 CUCV
    GM4 Turbo,DB24911 turned up.
    Raptor 100 lp.
    NV4500(the way they should have come)
    5 inch Redneckmaster Ex
    Autometer Fullsweeps
    Serp Belt conversion. HO WP. Dmax Fan

    Previuosly owned:
    2000 K3500 6.5TD
    1993 K3500 6.5TD
    1983 K5 6.2
    1998 GMC Suburban 2500 6.5TD
    1991 GMC Jimmy 6.2
    1989 GMC Vandura 2500 Hi Top 6.2
    1983 GMC K2500 6.2
    1999 Ford Suerduty 350 7.3PS
    1983 Ford E-350 6.9
    1982 VW Rabbit Diesel

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