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RE: GT6 Gearbox Insulation

To: triumphs@autox.team.net
Subject: RE: GT6 Gearbox Insulation
From: burdekij@bvsd.k12.co.us (Jane Burdekin)
Date: Tue, 17 Sep 1996 15:58:24 -0700
Dave, Peter, and Richard,

Thank you for the info on the trans tunnel cover insulation.  Can't wait to
dig into the headliner too.  I will look into getting some thing to
insulate with soon.  In the meantime it hasn't been too hot here 70's, and
I am enjoying listening to the engine since it hasn't run for so many
years.  I am hearing mostly good things only a couple of noises I don't
like.  Its quite exciting, only 106 more miles to 500.

Jane B.
Boulder CO

>>I have a question for the list.  My '67 GT6 is newly running, and I got a
>>new transmission tunnel cover.
>>Jane
>>'67 GT6
>Boulder Colorado USA

>Jane,
>   At one time I had this oily bag of asbestos covering my gearbox also (BTW
>a not so oily version is under the headliner insulating the roof). Since it
>get very hot in Texas and the GT is a warm car, I had to do something to
>keep from cooking in the Summer.  I went to a heating supply company (should
>be a lot of them in CO) and bought something called "Boiler Wrap".
>    Boiler Wrap kind of looks similar to black wetsuit material but about 1
>inch thick. A sheet of this stuff is enough to do several cars and was
>fairly cheap ($10-$15). I cut it with a razor blade into pieces that lined
>the entire inside of the cover. It is held in place by contact cement. This
>was done close to 5 years ago and when replacing the gearbox last February
>it had not deteriated at all.
>   One thing to look out for is to leave room to provide access to the
>fasteners holding the slave cylinder on. I made a square that was not glued
>in this area that can be removed from the engine side in case I ever had to
>remove the slave for repair work.
>   Good luck with your car and hope you make it to Dallas for the next
>Nationals in 97.
>Regards,
>Richard Ceraldi
>71 GT6 MKIII KF166L
>Austin, TX
Jane, the new cover will work, but the material you remember from the
     old part was there for noise attentuation and to reduce cockpit
     temperatures...the GT-6 (particularly the Mark I) is not known to be
     very well ventilated and is warm on cool days...you can help both of
     these problems by adding appropriate soundproofing material on the
     inside of the tunnel cover (side toward the transmission)...not the
     location of the exhaust pipes, under the tunnel, and select a material
     that will reflect and sustain relatively high heats!
     Congratulations on your "running" GT-6!

     Pete McHugh
     The material that you describe on the inside of the trans cover is
insulation
from engine heat and noise. As GT6's get very hot on the inside durring summer
you may wish to add this to your new trans cover.

As to what old material was (??) I replace mine some time back with plane old
house hold insulation. Being the old material was in plastic bags I did the
same with the new insulation. I wrapped it in new plastic with the foil side
faceing the trans then stapled the bags to the trans cover (I used my old
cardboard cover).

Hope this helps some

Dave Eaton





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