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TR4/4A Heat shield for tranny cover

TR4eh

Senior Member
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Would you recommend putting some of the aluminum faced heat shield material on the underside of a plastic transmission cover? Seems to be a good idea to me, but looking for advice from someone who's done it. Does it help reduce heat and noise, and does it last?

Thanks,

Cliff
 

BigGreen

Jedi Warrior
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Depends on the space you have between the transmission and the cover
The airflow must not be blocked completely, also use oil resistant glue
 

TR3driver

Great Pumpkin - R.I.P
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I put mine on the carpet side as well (although my trans cover is steel, not cardboard) and it made a big difference. Before, the tunnel would get so hot on long trips that I couldn't lay my leg against it. Now, even in ridiculously hot weather (over 100F), it just gets warm.

The stuff I used had felt mated to the foil, and I didn't want the felt to get soaked with oil (fire hazard).

PS That was over 10 years ago, and the insulation was still in good enough shape that I moved it from the wrecked TR3A to the current TR3 (rather than cutting new).
 

charleyf

Jedi Knight
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I did my TR 4s with Dynamat and put it inside the car. I did the rest of the firewall and floors as well. It sure cuts down on heat and noise. Now I can listen to the exhaust note rather than the road noise.
Charley
 
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