Thanks guys, I'll pick one up this weekend. I was researching the net on anything that I could find as to how they get activated (opened/closed) but wasn’t able to dig up any info. What I did find out was that they were supposed to pull the heat out of the vehicle using the principles of Bernoulli…that’s when the air rushing over the rear deck is faster than that which travels under the car thus creating a low pressure in the area directly outside, and above the Astro vent which in turn moves the hot air out of the vehicle. Well as it turns out the gas crunch of the seventies forced the auto makers to reduce drag on future production models, they did this by way of wind tunnel testing; after which they soon found out that the low pressure they were hoping for wasn’t there, and discontinued the rear deck Astro vent due to its ineffectiveness.
However I have one, and I want it to work. One person said that they believe it to be activated when the defroster is turned on; which stands to reason since the air induced into the vehicle needs an evacuation point. I can’t test that yet, till I figure out why mine are staying open.
Tech tip: I was replacing the interior screws in the door panels last weekend, only to find out that the previous owner used a larger slotted head screw. He did so probably because the original screws had been over tightened. This worked, but further mushroomed the hole outward and I wanted to use the original looking screws with the button washer. Now my tech tip…I placed a ball peen hammer on the hole, and with another hammer gave it a couple of smacks, thus closing the diameter of the hole till the replacement screw fit.
Feel free to move these to a more appropriate place, but I have one other also.
The black tar holding the plastic protective layer in place to the door directly behind the door panel had lost its tack, and was all dried up and brittle, so in a pinch I used a bead of plumbers putty to re-adhere. It supposedly doesn’t dry out, discolor, stain, and had excellent adhesion till I was able to refit the door panel to permanently hold it in place.
______________
|IMG|http://www.C3VR.com/member_uploads/6101_6200/6137/DSC00001.JPG |/IMG|
seathree
I have a 69 roadster, and the the two vents in the rear deck stays open all the time. I can manually push in the actautor to operate the vent, however I'm not sure what actually activates this...mine stays open all the time. Is there a switch somewhere to control this?
