Throttle Lever Movement

[CatGuy]

I replaced the steering column on my '26 Roadster with a column that was for a '26 - '27, however the throttle linkage on the column was for the Vaporizer Carburetor and I have the NH Holley. I was very careful to line up the eyelet (for lack of a better word) on the steering column in the proper place. However, to me it seems like the throttle lever doesn't go down as far as it used to. I have disconnected the carb rod at the steering column and worked the rod separately from the 'eyelet' and they work in parallel, meaning that the the travel for the carb appears to be complete. Here is a picture of the throttle lever as far as it will go. I have not been able to road test it yet. Shouldn't it go farther?

[Humblej]

The throttle lever should have full movement on the quadrant. If your carb has full movement then I would suspect the "eyelet" is too long for your nh setup.

[CatGuy]

The throttle lever should have full movement on the quadrant. If your carb has full movement then I would suspect the "eyelet" is too long for your nh setup.

Did they make different 'eyelets' (and what is that called?). It's the same one that I started with. Even with it disconnected, I can't get the carb rod to go any farther in a way that would make the throttle lever go lower.

[Mark Nunn]

With your throttle lever down as far as it will go, is the "eyelet" hitting the steering shaft? What is stopping movement at that position? My "eyelet" hits the steering shaft with the throttle lever at the bottom of the quadrant. I have a '26 with a Ford NH. My throttle valve never opens completely (close enough for me, though).

[speedytinc]

There is an early(long) throttle lever & a late (short) The length of the throttle lever on the rod & carb should be about the same length.
You may have put an early, long throttle lever on.
Is your throttle rod going thru the motor or did you put an aftermarket throttle adapter over engine setup on?

[Norman Kling]

When you push the throttle lever all the way up, is the valve in the carburetor all the way closed to idle? is the idle screw against the stop at the carburetor and when the engine is running does it idle at a very slow speed as it should? That is the point at which it should be correct. Next, with the engine off,pull the quadrant lever all the way as far as it will go. Does the carburetor valve open all the way? If so, one or both of the eyelets either on the column or the carburetor is wrong. Note some carburetors have a different length at the carburetor. If it is shorter it would open the valve with less movement of the rod in the column. If the carburetor valve is correct at idle but does not open completely when the lever is down as far as it will go, then the rod is hitting something along the line. Either something between the steering column and the block, or something inside the block. Sometimes if not bent just right it will scrape inside the block or valve cover.
Norm

[CatGuy]

With your throttle lever down as far as it will go, is the "eyelet" hitting the steering shaft? What is stopping movement at that position? My "eyelet" hits the steering shaft with the throttle lever at the bottom of the quadrant. I have a '26 with a Ford NH. My throttle valve never opens completely (close enough for me, though).

I'll have to check and see if it's hitting the steering shaft. I doubt that it is, but I'll check. I assume that the throttle plate is stopping the movement.

[CatGuy]

There is an early(long) throttle lever & a late (short) The length of the throttle lever on the rod & carb should be about the same length.
You may have put an early, long throttle lever on.
Is your throttle rod going thru the motor or did you put an aftermarket throttle adapter over engine setup on?

It goes through the motor.

[CatGuy]

When you push the throttle lever all the way up, is the valve in the carburetor all the way closed to idle? is the idle screw against the stop at the carburetor and when the engine is running does it idle at a very slow speed as it should? That is the point at which it should be correct. Next, with the engine off,pull the quadrant lever all the way as far as it will go. Does the carburetor valve open all the way? If so, one or both of the eyelets either on the column or the carburetor is wrong. Note some carburetors have a different length at the carburetor. If it is shorter it would open the valve with less movement of the rod in the column. If the carburetor valve is correct at idle but does not open completely when the lever is down as far as it will go, then the rod is hitting something along the line. Either something between the steering column and the block, or something inside the block. Sometimes if not bent just right it will scrape inside the block or valve cover.
Norm

I haven't had it running since I replaced the column. I may be able to find time this weekend to do that. The car is in such a bad place in the garage that I'll have to climb over it to see if the throttle plate is opening all the way. (I need a bigger shop)

[CatGuy]

Here it is with the throttle lever all the way down, throttle plate fully open.