63 throttle rod question

[Jon R.]

Hello,

I hope someone can answer this question. Below is a picture of a 1963 engine that I saw on the internet that has what appears to be a second throttle rod parallel to and below the 'normal' one. This second rod appears to attach to the lower hole in the main throttle linkage on the carburetor. Does anyone know what this is? Is it related to some specific options?
Thanks,
Jon

[Eric V.]

Re: 63 throttle rod question

Jon,
The lower throttle rod is for the Powerglide kickdown linkage. The photo is apparently of a 300hp/powerglide optioned car. You can see the details in the '63-'64 Corvette Tech Info Manual & Judging Guide (pg 138).
E. Vrem

[Michael H.]

Re: 63 throttle rod question

Hello,

Below is a picture of a 1963 engine that I saw on the internet Jon

Someone should tell the owner of that pic/car that he has the wrong throttle return spring. (should be black, not white) Plus a few other incorrect items.

The carburetor will not return to idle properly with the white spring.

[Richard M.]

Re: 63 throttle rod question

Jon, You must have been visiting my website. Yes, it's a 300hp Powerglide, and yes that's the kickdown lever connected to the 3460S AFB.

Michael.......actually, it works just fine. I bought the correct reproduction black spring long ago and that one did not return properly. I ended up putting the one you see on it so it works.

So what else do you see that's wrong? I know of a few things......... let's have some fun.

[Jon R.]

Re: 63 throttle rod question

All, Thanks for the responses - my car is a manual transmission, that is why I did not know what the other lever was!

Richard, Yes, I did see the picture on your website. Good eye! I was a little hesitant to post the picture without the credit, but since it was just for reference, I went ahead. I did not intend to bring up any negatives! Nice car by the way!

Jon

[Richard M.]

Re: 63 throttle rod question

Not a problem Jon. That's expected.

Thanks for the nice comment. The car sold yesterday.

Rich

[Michael H.]

Re: 63 throttle rod question

Michael.......actually, it works just fine. I bought the correct reproduction black spring long ago and that one did not return properly. I ended up putting the one you see on it so it works.

So what else do you see that's wrong? I know of a few things......... let's have some fun.

Oop's, sorry Richard. I didn't know the car belonged to a member. Do you still want to know what the items are? If so, I'll let others see if they can find all of the incorrect items first.

[Richard M.]

Re: 63 throttle rod question

Ok, go for it. But I must tell you I know what they are.

[Stuart F.]

Re: 63 throttle rod question

Hose clamp on the PCV connection and cotter pin in the throttle linkage rod at the carburetor (most use spring as retainer, but many use pin and that may be acceptable?)

Stu Fox

[Stuart F.]

Re: 63 throttle rod question

Also, the fuel line connection at the carb looks suspect. I'm not that familiar with the L-75 engine, rather I am an L-76 man.

Stu Fox

[Richard M.]

Re: 63 throttle rod question

Also, the fuel line connection at the carb looks suspect. I'm not that familiar with the L-75 engine, rather I am an L-76 man.

Stu Fox

Actually it's the original pipe, from the GF90 to the carb. The 45 deg fitting is however not original, correct though. New pump to carb line, home made with new fittings.

I always use a cotter pin in addition to the spring for safety.......PCV hose clamp. I hated to add that but wanted it tight and couldn't find a period correct one. Originals didn't use clamps there. Hard to see it with the air cleaner on.

Hmmmm, you missed the chrome 90 deg fitting on the other end of the filter though. Chrome only on L76 and above.

[Stuart F.]

Re: 63 throttle rod question

Richard;

My screen is not that clear - or is it my 70 year old eyes are not that great anymore. Whatever. Was fun though.

Stu Fox

[Glen S.]

Re: 63 throttle rod question

I believe the grooves in the hex on the fuel filter would be considered as incorrect also.

[Dan H.]

Re: 63 throttle rod question

Is that a 'star' washer I see under the nut for the fuel filter? Gee Michael, what should it be?

[Richard M.]

Re: 63 throttle rod question

I believe the grooves in the hex on the fuel filter would be considered as incorrect also.

Right.......The nos service replacements had the grooves. That's what that is.

Also, you all didn't notice the extra vacuum port at the rear carb brass fitting for the aftermarket A/C.......
and the missing valve cover screw reinforcements. They're on it now though.

..............As I briefly mentioned, the car has been sold. It will be headed overseas in a few weeks to a new home. We've had much fun with it for the last 2+ years. Over 3500 miles of driving while restoring. I must say I have learned much here on the TDB to help with it's restoration. Thanks to all who have helped.

Rich