Need help with Ford 2000 2cyl gas with Holley Carb rebui

Typo in Subject heading: should read "Need help with Ford 2000 [b:f26a7c5a10]3cyl[/b:f26a7c5a10] gas with Holley Carb"

I just rebuilt this Holley carb, including the throttle shaft and accel. plunger. I followed Rachel's instructions from J&D productions on you tube: sanded the new plunger down til it just fit in the cylinder, etc., but I left it pretty snug.
The butterfly works freely by hand. Engine starts up and runs pretty good at idle...
THE PROBLEM is: pulling the throttle gradually as you normally would to rev it up has no effect. Pulling it half way , or even two thirds has no effect: still idles. The throttle will only open if I pull it ALL THE WAY down, then it opens wide and I have to try to regulate it by pushing half way back to idle. Very tricky!

I have checked and oiled all the throttle/gov. linkage. The springs are connected on the horizontal throttle rod and the verticle gov. lever. I suspected the governor (though it was ok before I rebuilt the carb) but the Gov. seems to respond by pushing the lever back when the carb to gov. link rod is removed, when running.
I don't want to tear into the governor, especially if the problem is with my carb rebuild, of course. There is precious little info about these governors on the web!

QUESTON: Is it possible the accel. plunger in the carb could cause this behavior if it was sticking? Or can anyone suggest something else?

THANKS IN ADVANCE for helping me out!

Robert B.
Snellville, GA

This post was edited by ROBOB1 on 08/15/2021 at 04:02 pm.

Puzzled here.

Ford 2000, 2 cylinder?

Assuming that you mean 3 cylinder, sounds like you need to adjust the governor linkage,

You will need an Owner's Manual or Shop Manual to do this properly.

Dean

Thanks for your reply. Yep, that was a typo - it is a 3 cyl. Now, how do I edit that???

I've already gone through the linkage adjustments in the manual. They were pretty close to good. I'm afraid I'll have to take the carb back off and that I regret: the last guy to work on this carb stripped the in-line strainer threads and the aluminum (?) had a hairline crack. I got the leak stopped by using JB weld on the threads. I KNOW! I'll never take THAT fitting out again without buying another carb, but I was desperate.

Anyway, I don't really know how that "accel. pump" works: vacume? fuel pump pressure? but if I left it too snug....?

I wouldnt think that the rebuild did it, it sounds to me like your throttle / gov adjustment is out of whack. That stupid accelerator piston doesnt pump a shot of fuel like a downdraft/automotive carburetor does, it is part of the metering circuit.

It's the governor linkage. Go through the whole procedure for adjusting it. The accelerator pump on those is held up by vacuum against a spring. When vacuum drops as
in a load or opening the throttle the spring applies the shot of fuel.

(quoted from post at 14:51:24 08/15/21) Puzzled here.

Ford 2000, 2 cylinder?

Assuming that you mean 3 cylinder, sounds like you need to adjust the governor linkage,

You will need an Owner's Manual or Shop Manual to do this properly.

Dean

Click to expand...

...come to think of it, you're probably right. It's acting like the "tipping point" for the butterfly is off. Maybe the new butterfly shaft is slightly different from the old one and that is making the difference. Instead of just following the manual's adjustments, I may need to experiment with different settings until it works.

Thanks for your suggestion.

Thanks. Back to the shop to tinker with the linkage!

I looked at it a little before supper (spaghetti and Meatballs!) and I'm wondering about that "Governor Spring"? I'm still going to go through the linkage adj. from one end to the other, but this doesn't look right: it's the short vertical spring with the metal rod running through it and it seems a little loose - maybe not putting enough tension on the throttle shaft??? Doesn't look too hard to take off, but I won't know what I'm looking at when I do:
How does that rod attach to the inside of the spring?
Wish there was a short course on Flyball Governors
...now, back to my meatballs!