Lower Grill block that can open and close

[Patrick]

Originally Posted by Weather Spotter

I think I know how to make the one side be open unless I keep the actuator powered. I am not sure how I want to do the other side.
Ideas?

10-speed bike shift cable? Lawnmower throttle cable? Aircraft vernier throttle cable? Jetski Teleflex cable?

If you can find an old twist-shift bike cable and handle, maybe you can mount it to your gearshift.

[Weather Spotter]

Originally Posted by Patrick

10-speed bike shift cable? Lawnmower throttle cable? Aircraft vernier throttle cable? Jetski Teleflex cable?

If you can find an old twist-shift bike cable and handle, maybe you can mount it to your gearshift.

That is a funny idea. My stick would not work.

I have never had any luck fixing or reusing cables. I might look into it, but I think that the actuators are cheep (and I have them). The issue with then is that they have no holding force once the power is removed. I would think that running them powered up (but not moving) for more than a few min would burn them up.

So I need some sort of lock device or friction device that will keep the vanes at the position I set them (by hand or with the actuator). It will need to hold the force of the air pressure generated at 70 MPH and still be movable by the actuator (which has a very strong push/pull force).

If I went with a cable how would that stay in place once I set it? Could the same thing work on the actuator?

[BamZipPow]

You want a worm gear setup...kinda like a garage door opener or yer powered window setup. The motor has the worm gear...it rotates and turns a gear wheel. You can have limit switches so you don't over run the range of the vent.

[Weather Spotter]

that just might work, where might I find some of these? Do you have an idea on cost?

I am looking for something in the $20 or less range

[BamZipPow]

How about $9 fer a 5 RPM GEAR MOTOR, 12VDC...

[Weather Spotter]

and a worm drive track, say 6" long that will fit the motor?

How would you wire up the limits? I get the point of limits, but not how to wire them up (a diagram puts you into thanks range )!

[gone-ot]

MANUAL = a hood release cable from a Honda, etc.

[Weather Spotter]

Would that open and close? Can you run me through the hook up (cables and I do not like each other)?

[gone-ot]

...the cable would connect to the bottom of a flapper door (hinged horizontally along the top) located just behind the grill opening you want to control airflow through.

...pull the cable handle and the bottom of the flapper door is opened (via suitable bell-crank); push the cable handle back and the flapper door is closed.

...why have the flapper door open at the bottom rather than the top? So that road rocks and debris are deflected downward towards the pavement, not upward into the radiator.

[3-Wheeler]

Originally Posted by Old Tele man

MANUAL = a hood release cable from a Honda, etc.

Farm & Fleet used to carry manually adjusted choke cable kits. That might be an idea.

Jim.