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  •  » 67 Holiday project update

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    12/31/2019 2:02 PM  #1

    cgomate
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    Registered: 4/01/2013
    Posts: 129

    67 Holiday project update

    I took my daily driver (67 cpe, 289)  off the road just before Thanksgiving.  She now has a T5 transmission, 3.25 posi diff, new leaf springs and new carpet.  I also added sound deadener under the rear seats and behind the interior quarters.  I've got about 35 miles of test drives on it all, and I believe the car is ready to return to regular service.

    The insulation I added has definitely helped with interior noise.  So much so, that now i'm acutely aware of how much wind noise there is in the car.  The doors both got new weather stripping a few years ago, but clearly there's some gaps that need attention.  

    Does anyone have suggestions on how to best locate and eliminate as much of this as possible?


     

     

    12/31/2019 2:17 PM  #2

    RV6
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    From: Pine Junction, CO
    Registered: 3/01/2016
    Posts: 1,225

    Re: 67 Holiday project update

    Good job on the T5 swap. As for the windows it takes hours and hours to get them to seal and then something wears out and it has to be done again. I did mine 5 years ago and it was pretty quiet with the windows up. No so now. 

    Gary Zilik - Pine Junction, Colorado - 67 Coupe, 289-4V, T5
     

    12/31/2019 3:02 PM  #3

    josh-kebob
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    From: Madison, AL
    Registered: 4/06/2013
    Posts: 2,902

    Re: 67 Holiday project update

    cgomate wrote:

    I took my daily driver (67 cpe, 289)  off the road just before Thanksgiving.  She now has a T5 transmission, 3.25 posi diff, new leaf springs and new carpet.  I also added sound deadener under the rear seats and behind the interior quarters.  I've got about 35 miles of test drives on it all, and I believe the car is ready to return to regular service.

    The insulation I added has definitely helped with interior noise.  So much so, that now i'm acutely aware of how much wind noise there is in the car.  The doors both got new weather stripping a few years ago, but clearly there's some gaps that need attention.  

    Does anyone have suggestions on how to best locate and eliminate as much of this as possible?


     

    What sound deadener did you use?

     

    12/31/2019 3:29 PM  #4

    Redvert67
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    From: Coon Rapids, MN
    Registered: 4/01/2013
    Posts: 104

    Re: 67 Holiday project update

    My 67 convert has so much wind noise, it's actually quieter with the top down. Seriously, it is.

    It's easier to add horsepower than it is to lose weight.
     

    12/31/2019 4:29 PM  #5

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,779

    Re: 67 Holiday project update

    Wierd but I have a window whistle in my 68 convert that I have been chasing for years.
     Well you say "whats wierd about that" Well - - -  it only whistles when driving into a wind from a certain direction on the vehicle , of course with the top up.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    1/01/2020 2:30 PM  #6

    cman66
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    From: Ponchatoula, LA
    Registered: 1/06/2018
    Posts: 179

    Re: 67 Holiday project update

    I see no reason to drive a convertible with the top up.
    Alas my car is not operating. I count the beautiful days that slip by,
    simply by saying " it's a perfect day for a convertible" 
    Yesterday 60 deg F and crystal clear skies.
    Mrs. C just groans when I make the above quote.
    Cman66

     

    1/01/2020 6:03 PM  #7

    lowercasesteve
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    From: Auburn, Ca
    Registered: 4/01/2013
    Posts: 1,216

    Re: 67 Holiday project update

    cman66 wrote:

    I see no reason to drive a convertible with the top up.
    Alas my car is not operating. I count the beautiful days that slip by,
    simply by saying " it's a perfect day for a convertible" 
    Yesterday 60 deg F and crystal clear skies.
    Mrs. C just groans when I make the above quote.
    Cman66

    Back when I had my Honda S2000 the top was down when the temp was over 45 deg and not raining.  I loved it!  I sold it, after 160kl miles, when no one including my wife would ride in it because of the wind noise, and closeness to the ground.

    Original owner - 351w,T-5, 4whl disks, power R&P
     

    1/01/2020 8:00 PM  #8

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 11,729

    Re: 67 Holiday project update

    First thing is to make sure the door hinges are tight with zero play in them. MustangSteve hinge rebuild kits are the only real fix for worn hinges On a 68.  Even brand new reproduction hinges always have play in them. Then, door alignment with the quarters and cowl pillars is critical. Next, the door glass must be properly aligned.

    Then, and this is a very common mistake, make sure the stainless steel weatherstrip mounting plates that screw onto the roof structure have a strip of sealant or closed cell foam tape between them and the roof.  This gets ignored alot, and can make for alot of wind noise even though all the other weatherstripping is working at its best.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    1/01/2020 10:27 PM  #9

    cgomate
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    Registered: 4/01/2013
    Posts: 129

    Re: 67 Holiday project update

    I sound deadener I used was Noico 80 mil... found it on Amazon.  I seemed reasonably priced and was delivered quickly so my project kept moving along.  I also added an insulated separator board between the trunk and rear seat.

    The Noico stuff was easy to work with and not messy.  Of  course, since there was no sound deadener of any kind under the rear seat or behind the interior quarter panels before I installed it, the results are quite noticeable.

    As for the other recommendations, thanks...  I'll take a closer look at the doors, etc. this weekend.

     

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