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Old Oct 5, 2009 | 09:46 PM
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Default Couple questions

Couple of questions, hopefully some easy answers.

Is this the aftermarket cover for a car that was once a rear exhaust and than transfered to a side exhaust? Im trying to confirm or deny what type of exhaust the car originally came with.


Is this the correct throttle cable and setup for a 69 4 barrel big block?
I know the carb is not correct and the setup currently does not have enough pedal movement to open the carburator all the way. It only opens it about 50%.
I wanted to make sure this was all correct and it was just a problem with the current carb possibly. If it is correct is there a way to adjust
thanks
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Old Oct 5, 2009 | 10:17 PM
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The rear cover is for a side exhaust car.
What your car came with, who knows.
The covers can be bought as aftermarket.
Not much help, but hope it helps.
Terry
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Old Oct 5, 2009 | 10:24 PM
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Many years ago,(1975 to be exact), I replaced my Quadrajet with a Holley. I had to buy a new clamp/bracket that attaches at the back of the carb like in your picture. You may have the wrong bracket for your carb and that may be why the carb will only open half way. But first, did you try loosening the nut on the clamp and moving the cable jacket back toward the firewall? From the pic, I can see that your cable is set as far forward as it will go, which would cause the carb to not open all the way. Try adjustment first before checking in an Eckler's catalog to see if you have the correct clamp/bracket. I'll bet the adjustment will help you a great deal. Good luck.
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Old Oct 5, 2009 | 10:32 PM
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Originally Posted by Duane4238
Many years ago,(1975 to be exact), I replaced my Quadrajet with a Holley. I had to buy a new clamp/bracket that attaches at the back of the carb like in your picture. You may have the wrong bracket for your carb and that may be why the carb will only open half way. But first, did you try loosening the nut on the clamp and moving the cable jacket back toward the firewall? From the pic, I can see that your cable is set as far forward as it will go, which would cause the carb to not open all the way. Try adjustment first before checking in an Eckler's catalog to see if you have the correct clamp/bracket. I'll bet the adjustment will help you a great deal. Good luck.
When you say to adjust the cable bracket, are you talking about the metal piece on the throttle cable or the plastic part that is near the end of the cable? I might just be not understanding how the throttle cable is normally adjusted. The metal piece you see that the clamp is clamped onto doesnt seem to move. I figure I can only move it a half inch more.
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Old Oct 5, 2009 | 11:34 PM
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The metal piece you refer to that the clamp is clamped onto is actually part of the throttle cable. Loosen the rusty looking hex head bolt in the right side of your picture. Then slide the whole cable to the right (toward the firewall). You actually will have more than a 1/2" to move it because that metal sleeve that's part of the cable doesn't have to be exactly in the middle of that clamp. It can go a little more to the right which will also give you more open throttle. Also, you'll notice that when you make this adjustment, your gas pedal height will change. The pedal will actually gain some height. You might get a little more rearward movement of the whole cable if you then loosen the back nut on the carb stud that holds the bracket onto the carb, and see if you can rotate the bracket rearward maybe an 1/8" or a 1/16". That may not seem like much, but it may be all you need to get the carb to wide open throttle. Good luck and keep me posted as to how it turns out.
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Old Oct 6, 2009 | 08:37 PM
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Ahh, wow that doesnt give much adjustment though. I have the original carb IM going to have rebuilt this weekend I believe. I hope putting it back on will help with the throttle issue. It does seems currently wrong, my floor pedal movement is very little. Seems like im trying to push it through the floor.
Ill keep everyone updated.
jim
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Old Oct 7, 2009 | 02:37 PM
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Just wondering if your original carb that is being rebuilt is a Rochester Quadrajet (similar to what's on there now) or a Holley? You could have the wrong bracket if the original was a Holley. They used a different bracket for the Holley than the Quadrajet.
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Old Oct 7, 2009 | 04:13 PM
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Originally Posted by Duane4238
...You may have the wrong bracket for your carb...


Throttle cable and attachment looks okay.

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Old Oct 7, 2009 | 04:23 PM
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Hi X454,
I believe the valance panel your picture shows has been modified from a rear exhaust valance panel to a side exhaust valance panel.
There is a list of things to check to verify an original side exhaust car starting with the VIN number since the option was only available for part of the 69 model year.
Here's a picture of a more typical valance and quarter panel for a side exhaust car. Notice the way the quarter panel and valance wrap into a flange that is joined with two bolts on the back side. The 2 screws on the bottom of your valance are the first clue.
Original side exhaust cars are pretty special... I wish I had one!
Regards,
Alan

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Old Oct 7, 2009 | 05:25 PM
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The original carb I was told was given to me and is a rochester. It was taken off the car due to a fuel leak at the inlet.

On the side pipe issue, what is the cut off date, I looked up my VIN on c3 registary and it says my estimated born date was march 15. If I find a build sheet int he future that sure would help decipher some stuff no doubt. :P
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Old Oct 7, 2009 | 08:01 PM
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Originally Posted by Alan 71
Hi X454,
I believe the valance panel your picture shows has been modified from a rear exhaust valance panel to a side exhaust valance panel.
I'm not sure, Alan. I think the rear valance panel joined directly above the exhaust tip on rear exhaust cars. That means that the rear clip of the car had a cutout for 'half the pipe'. The pipe cars did not have this feature. This would be very hard to overcome in order to fake a pipe car. I think I have it right.
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Old Oct 7, 2009 | 08:43 PM
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Originally Posted by xpoc454
On the side pipe issue, what is the cut off date, I looked up my VIN on c3 registary and it says my estimated born date was march 15. If I find a build sheet int he future that sure would help decipher some stuff no doubt. :P
Here is a picture of the outside of the left rear valance on my original side exhaust car.



And a picture of the inside. Haven't cleaned in there yet.



My build date was approx. April 7th. Don't know when they stopped putting them on, probably shortly after the strike was over. Your build date would be okay.

Other things to look for are insulation between the body and both the top and outside of the frame rails. Also look for absence of the center exhaust pipe hanger above the transmission mount and threads in the holes of the frame for grounding strap attachment. If it is absent, then there should be spacer plate between the transmission mount and the bottom of the transmission. Look to see if the front side fender has been trimmed for side exhaust clearance, and look to see if the front of the rear wheel well has been cut to expose the rear end of the main frame rail.
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Old Oct 8, 2009 | 04:34 PM
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Hi Mike,
FR's, ( Good Pictures FR), 'inside' picture, shows what I would expect to see in a side-exhaust car's valance panel/ quarter panel. His list of other things to check is right on too.
X454's picture shows the seam where I would expect it to be, but I believe it shows the configuration of the fiberglass joint that isn't typical. I'd be curious to see a view from 'inside'. Please, X454!?
Regards,
Alan
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Old Oct 8, 2009 | 08:57 PM
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Here is a picture of inside drivers side of mine.
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Old Oct 9, 2009 | 10:16 AM
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Like Alan said, yours is not original factory. Could have been dealer installed. I have seen replacement panels that are like yours, as well as the more obvious ones that just fill in the tailpipe opening.
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Old Oct 9, 2009 | 10:33 AM
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Originally Posted by Alan 71
Hi Mike,
FR's, ( Good Pictures FR), 'inside' picture, shows what I would expect to see in a side-exhaust car's valance panel/ quarter panel. His list of other things to check is right on too.
X454's picture shows the seam where I would expect it to be, but I believe it shows the configuration of the fiberglass joint that isn't typical. I'd be curious to see a view from 'inside'. Please, X454!?
Regards,
Alan
Yup, agreed. Thanks, very clear now!
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