75 Hood induction flap
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
75 Hood induction flap
How far should the flap in my hood open? I finally got the WOT switch working correctly so the solenoid in the hood operates the flap and the kickdown is working on the transmission.
At the moment, the flap in the hood moves a very small amount. I assumed it would go from closed ( vertical ) to fully open, ie pivot 90 degrees to the horizontal position.
Can any of you guys with this system go stick your foot on the throttle and let me know how far your flap opens.
Many thanks.
At the moment, the flap in the hood moves a very small amount. I assumed it would go from closed ( vertical ) to fully open, ie pivot 90 degrees to the horizontal position.
Can any of you guys with this system go stick your foot on the throttle and let me know how far your flap opens.
Many thanks.
Race Director
Joined: Jul 2004
Posts: 12,696
Likes: 329
From: Scottsdale Arizona
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
I had a '75 and I recall it opening all the way. Here's some other info:
http://books.google.com/books?id=5Ib...dZhkFkmKAW5Rlc
http://books.google.com/books?id=5Ib...dZhkFkmKAW5Rlc
Drifting
Joined: May 2006
Posts: 1,480
Likes: 2
From: Circleville Ohio
Vader Vette
On my test bench the little dude opened totally flat from the up right position.I say test bench because I oiled it up and put it in the drawer with all the other parts Ive taken off bumper stuff mostly. are you trying to get yours to work.I put A 12v red light in place of this little air dam so that when you get the four barrell to work the red light comes on its cool at night looks like fire.
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
Jud, great link..thanks.
Lon, thats what I thought should happen. Just before we replaced the switch I connected it to a 12v battery and could here the solenoid clicking and the flap would move a little. With the switch connected it does exactly the same.
I will take it off the hood, lube it all up and get it working...Looking forward to hearing that induction roar Ive heard about!
Sweet looking Vette you have BTW.
Lon, thats what I thought should happen. Just before we replaced the switch I connected it to a 12v battery and could here the solenoid clicking and the flap would move a little. With the switch connected it does exactly the same.
I will take it off the hood, lube it all up and get it working...Looking forward to hearing that induction roar Ive heard about!
Sweet looking Vette you have BTW.
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Melting Slicks
Joined: Mar 2002
Posts: 2,140
Likes: 7
From: Ohio
The switch is made with the gas pedal under the dash. Many times a short piece of hose over the plastic switch rod will make the system work. The thickness of a floor mat can stop it from working. I think the switch self adjusted the first time you floored it.
Last edited by LYLE; Jun 27, 2007 at 08:19 AM.
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
Lyle, that is indeed correct. We reset the switch before it was put back in and then pressed the throttle to the floor. This then sets the switch as you said so each time the throttle is floored, it will operate.
I better check at WOT Im getting full operation of the carb whilst I think about it.
I better check at WOT Im getting full operation of the carb whilst I think about it.