Holley rebuild - shaft bushing question

[Donald H.]

I'm rebuilding a service dated List 3367. This is not a numbers matching carburetor and not an expensive carb, but I needed one for a project car.

The primary shaft was pretty loose. I measure about 0.014 play up and down on the throttle linkage end measured with a dial indicator. From what I can glean, this is way to much. I know that there are a few places I can send it and have the base reamed and brass bushing installed.

But I just took the shaft out today and I put two of the nylon strip bushings in the recessed area of the shaft on the throttle linkage side and that really tightened it up.

I know the nylon strip bushings are really supposed to be used on the secondary shaft.

Is it OK to use them on the primary or should I send it out to have it reamed and bushed?

Thanks,

Don Harris

[Mark M.]

Re: Holley rebuild - shaft bushing question

Don check with Carbjunkys in Georgia. They sell repair kits for shafts or can do it for you. 770-457-8570 and they sell on ebay.

[Donald H.]

[Mike M.]

Re: Holley rebuild - shaft bushing question

don: I installed the nylon strip bushings in a 3247 couple years ago. it tightened up the shaft and the carb functions properly. mike

[Donald H.]

Re: Holley rebuild - shaft bushing question

Thanks Mike, That's what I needed to know.

I was surprised how much the nylon bushings tightened it. I was just concerned about wear on the primary shaft.

The exploded view I have for the 4150/4160 shows the "ribbon bearings" on the secondary shaft only in the diagram. But in the parts listing (190) they are called "Throttle Shaft Bearing (Ribbon) Primary and Secondary".

Don

[Richard G.]

Re: Holley rebuild - shaft bushing question

If you haven't watched Herold's bushing install video you should. He shows how to do it and keep the bushings in line.

https://www.youtube.com/watch?v=R86zI4ii0nk

BTW I have Herold do my carbs and have have always been happy with the results.
The body coloring is spot on.
Rick