I think my carb (Holley) may need the primary shaft rebushed, as it seems to have some slop (I can visually "see" the shaft move as I apply pressure).

Upon disassembly, I noticed the secondary shaft was already rebushed, with thin plastic/teflon? split bushings fitting around the shaft...


Where do I find a kit to do this? Should I just send it to a shop, or can it be done at home?

About how much should I expect this to cost?

Thanks

ttt

There's a shop around here that does it for around $50, you can mail the carb to them. They're good.

Carbs Unlimited (http://www.carbsunlimited.com/)

If you have a double Pumper,

Open the new Jegs Spring catalog.
It's Yellow with a Yellow truck on the cover.
Look at page 73 in the Manifolds & Carburetors section.
Bottom, right.

QuickFuel High Flow Throttle Shaft Conversion Kit

Jegs# 793-10-2 for 4150 style carbs $41.99.

It comes with new slabb milled shafts, button headed screws, and teflon bushing/inserts.
This will slightly increase the CFM wile tightning up the play.
The discription doesn't say anything about bushings but a friend where I work just got one.
The parts he recieved had bushings.

Tony, see if you can email Dave Ray regarding the procedure for the teflon bushing wrap. He gave me the instructions maybe 3 years ago, and I never saved them unfortunately. I do recall that the thin teflon sheet was a hobby shop item, and the procedure was quite straight forward.

Actually, I'll email Dave myself and see if he has the time to type it up again. That guy is a wizard.

Is it possibly the same procedure for a Q-Jet?

Here's what I got back from Dave. ( thnx Dave!)

Find sheet of .014/.015 teflon and cut bushings from it to fit the recesses
on the throttle shafts. Most Holleys don't use the teflon, but almost all
the shafts have cuts in them for it. It's tricky to get the teflon in
correctly, if you have issues, let me do them during the next Buffalo ice
age this winter.Don't worry, the places I want to go have varying levels of
snow and ice during the winter, and I'll have nothing better to do than
throttle shaft rebushing and shoveling snow.

*Mark the throttle plates with scribe lines along the shaft, so the plates
can be reinstalled in the same place. Use button head Allen screws, black
oxided, Lock-Tite. ALWAYS trim the expanded sections of stock shaft screws
off before removing them from rthe snafts, they are staked (mashed into a
mushroom) and if they aren't trimmed, they will kill the threads in the
shaft as they are taken out.


Doesn't seem really hard , does it?

So you just cut the teflon into 1/2" (or so) wide strips and wrap them around the shafts and slide them back in?

Gene,

Was That "I-man" or "Iman" you e-mailed??

If it was, just wondering how he's getting along, that's all..

pdq67

Thanks Gene...

I called Dave and went over the procedure again... He also told me about some of the Holley rebuild kits having the bushings too... I called a few local places, and so far I have found 0.010 and 0.020 sheets...

I'll have nothing better to do than
throttle shaft rebushing and shoveling snow.This had initially confused me, but its all clear now... If I can't get this done myself , and after things setle down, I might send it to him... Right now I am in no hurry, this is just for my other project...

You can get the bushings in the Holley kits. The biggest problem is not breaking the screws that hold the throttle blades in. Just be carefull. A Q-get is a different story you need the kit with tools to do it. If you have only one to do find a good carb shop that can do it.

You can get the bushings in the Holley kits.Mike, do these come in most kits? Is that the "rebuild" kit or the "Trick" kit? I don't know the difference in those... I have to rebuild, so I will be getting a kit anyway... I noticed that the rear shaft had the teflon bushings, but the primary didn't. Should they all be in the kit? I email Holley Tech last week, but they never replied...

The biggest problem is not breaking the screws that hold the throttle blades in. Just be carefullYeah, okay... So I did a real bone-head move that I wasn't going to mention to you guys (no beer involved, just late at night)... I broke two screws. I figured they were brass and would still come out with some screwdriver persuasion (I have big strong forearms :D )... Doh!

I had to file the ends of the screws to get the throttle shaft out of the baseplate... Now I get to try out my new drill press by drilling out the remnants of those screws... It never even occurred to me about indexing the butterflies for reinstallation...

I have rebuilt a few Holleys in the past, but nothing major in probably 10 years, and even then, I don't think I ever removed the throttle shafts...

Thank God I am in no hurry...

If the screws broke off from the top, you might be able to un screw then from the bottom.

Later
Steve

Sounds like I have the same problem, yet I get a small dribble of gas once and awhile, will this rebush with the teflon strips help? Thanks

The rebuild kits at the parts store have the teflon inserts. I have a 3310 that needs to be bushed. I was planning to have a machine shop drill and bush the baseplate for me, but if the teflon inserts really work, I may go that route.

PDQ, Dave is going well! He sold his place there in Whittier and is in the process of getting ready to move, hence the winter comment. It sounded like he was in a somewhat 'rough' neighboirhood. He didn't really say where he was going, but he does have some stuff in storage up near Reno, I think.

Anyway Ignitionman seems happy to be moving somewhere a bunch more quiet where English is the spoken language!