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Topic: At full throttle now

in Forum: C3 General Discussion


At full throttle now

Posted: 2/11/03 6:56pm Message 1 of 7
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BRADENTON, FL - USA
Joined: 8/4/2002
Posts: 669
Vette(s): 1972 convertible 350 auto trans, delux int, air, ps, pb, t/t wheel, pw, 79,000 org miles Rare one year only color
After installing a set of platnum plugs, i did a check of my gas pedal. When pressed to the floor i noticed that the carb was only opening about 70%. I always thought something was wrong as i never could hear the secoundaries openning. You know tht loud howl the Q-jets make. The pedal was hitting the carpet. I pulled the carpet back to find much to my surprise ..........more carpet. The PO installed new carpet right over the old carpet. I cut the carpet out under the pedal and with minor some adjustments the carb 100% opens like is should. I'm sure this will do wonders to my gas mileage. |wavey|

|UPDATED|2/11/2003 7:11:22 PM|/UPDATED|



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At full throttle now

Posted: 2/12/03 8:17pm Message 2 of 7
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Grand Blanc, MI - USA
Joined: 8/7/2002
Posts: 544
Vette(s): 1979, 350sb, as my kids affectionately call it "shit brown" Corvette purchased in 1996. 84,000+ miles. Not a show car, but I love her just the same.
Sorry Garry, but that's just too funny! |laugh| |laugh| |laugh| |laugh|
|smokin|


At full throttle now

Posted: 2/13/03 8:20am Message 3 of 7
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DOWNINGTOWN, PA - USA
Joined: 11/24/2001
Posts: 962
Vette(s): 1969 Monza Red Black Conv / Black Vinal hardtop 454/480 Tremec 5 Speed 308 Posi.Black Leather Interior, PS, PW, Air cond., tilt/tele,AM/FM Cass.-5 Pack CD, Hurst Shifter, side pipes 2004 Yellow convertible with black top and black interior
Dumb stuff like that does happen. Luckily you had to forsight to look for the obvious before spending a bunch of money on a mechanic.
When I first got my '69 I drove it for a couple weeks and kept wondering why it just did not perform the way I remembered my old '74 454 running. Since my wife will absolutely not sit in the driver's seat, it was difficult to check linkage travel. I finally got one of my club members to work with me for a couple minutes and sure enough the rod attached to the bottom of the gas pedal was bent and the secondarys were only cracking open. Once teh linkage was fixed, it acted like a whole new car and yep, gas mileage certainly changed in a downward direction but nowhere near as much as the fun meter went in an upward direction |biggrin|


At full throttle now

Posted: 2/15/03 5:57pm Message 4 of 7
Former Member
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BRADENTON, FL - USA
Joined: 8/4/2002
Posts: 669
Vette(s): 1972 convertible 350 auto trans, delux int, air, ps, pb, t/t wheel, pw, 79,000 org miles Rare one year only color
i just replaced my wife with a 2x4 holding the pedal down. just to check the pedal after which i brought the 2x4 back


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At full throttle now

Posted: 2/15/03 6:58pm Message 5 of 7
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Waterford, MI - USA
Joined: 9/13/2002
Posts: 1755
Vette(s): 1973 Red coupe
That’s too funny. I have heard that the pedal gets bent after time stopping it from get to full open. People do strange things. |cheers|


Brian - NCM Lifetime Member

73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, Seatbelt Plus 3point seatbelts, Pioneer CD player
Magnaflow Exhuast System

Dewitt radiator and dual electric fans
Borgeson Steering box
 


At full throttle now

Posted: 2/16/03 4:01pm Message 6 of 7
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ORLANDO, FL - USA
Joined: 12/11/2002
Posts: 459
Vette(s): 1980 L82 Dark Metallic Green Coupe, Gymkhana Suspension, AM/FM/CB, GM ZZ383....nice....
Gary,
How do I check mine (stock QJet). When I press the pedal to the floor, should I see the secondarys open? Mine don't. What should I see? |headscratch|


 
1980 L82 (5069 made), Dark Green Metalic (844 made)
Gymkhana Suspension, AM/FM/CB, Sporting a ZZ383......... 

At full throttle now

Posted: 2/16/03 4:31pm Message 7 of 7
Former Member
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BRADENTON, FL - USA
Joined: 8/4/2002
Posts: 669
Vette(s): 1972 convertible 350 auto trans, delux int, air, ps, pb, t/t wheel, pw, 79,000 org miles Rare one year only color
the top plates are vacumm operated and will only open when running. but its the lower throttle plates that need checking. Hold the pedal to the floor (you will need someone to do this or as i did a 2x4 against the front of the seat bottom). you then can open the top plates with your finger and see how far the throttle is openning. Or with the pedal to the floor move the throttle linkage back by hand and see if it can move any farther back. adjustments can be made on the cable hold bracket and then recheck. be sure there is nothing binding after you make any adjustments.


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in Forum: C3 General Discussion


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