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All metal repairs and modifications have been completed. I removed the original heating pipes from the center tunnel and most of the factory metal strips that wraparound the harness or AC tubing. I'll replace everything with modern materials. Everything looks very clean. Just started with the seam sealer applications... 4164 is scheduled to leave for the body shop in two weeks.

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Looks amazing!! love to see the original yellow showing through!   What seam sealer are you using?  For the heater lines, what will you be using to go through the tunnel?

Hi there,

I used SEM 2 in 1 seam sealer based on what my body shop owner recommended. It is a spray on application which leaves a nice textured surface. Regarding the routing through the center tunnel. A slot was added towards the engine bay as shown in the picture. It was tricky to cut on the inside wall since it is a channel tube. A cover plate will be added later for aesthetics and rigidity with grommets, fittings or bungs. It will accommodate all new 10 AN heating hoses, AC hoses, brake and clutch hydraulic lines, etc. nothing but the coolant pipes will run underneath the car.

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Last edited by #4164

I suppose if there is a valve that shuts off the heating completely, it may not matter?  extra heating in the winter..

Unless you install shutoff valves in the engine compartment (which I installed as well for safety reasons) , the incoming pipe will heat up to the valve at the heater core located next to your gas pedal… this metal pipe is firmly connected to the tunnel in the center and it heats the tunnel up.., there is no air flowing.. just stagnant heat…

here in California, it does make a difference if your small cabin has an additional heat source…

Last edited by LeMans850i

Here is something I saved on heater tubes and shutoff valves. There is another good reason to have the valves, if the heater core springs a leak its know to fog up the inside glass and windshield making impossible to see.

The drawback is you have to crawl underneath to turn them on and off… And what usually happens it just gets forgotten to do it frequently to make it work properly. that’s why I went to electric… I had those Home Depot shut off valves on my car when I bought it…

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