Carburetor Bushing for throttle shaft - Page 2

R Bedell · #11 06-28-2009, 06:36 PM

Myron:

I am glad that the Ace Hardware in Joaquin TX carries that Hillman bushing.

In checking a 25 mile radius around my home, not one Ace Hardware stocks that bushing.

MBounds · #12 06-28-2009, 08:31 PM

Hi Roland..Joaquin, (Pop 900) isn't big enough for an Ace Hdw. But Center TX, 22 miles away is...and they had to order it...got it over nite from the Dallas Distribution Center...Actually, I bought a packet of 10 of 'em (the minimum order for the store).

Now, as for as Toledo Oh is concerned:

http://yellowpages.aol.com/search?qu...lTopBox.search

Me thinks someone didn't look too hard for an Ace Hdw in Toledo.

Myron B

clint · #13 06-28-2009, 08:57 PM

RPalmer

I picked the reamer up used on ebay, super cheap, it's always a gamble on used reamers however. Just search for hand reamers, 1/4" is a easy find. I always go overboard when making anything I turned all the OD dimensions first, I also made it about 4" long, then center drilled, drilled a .180 hole using a cobalt screw machine drill (short with no flex) then used a .215 drill, then reamed to size, then parted them off to .125" length, I also had to chuck them after this to put a small radii on the ID from the parting operation, so both sides of the ID, and OD got a small radius, all on the lathe without ever un-chucking (using collets so accuracy is in the .0000) . I need to pick up some more tools as well on ebay, it's still a great place for used reamers, taps, drills of odd ball sizes that work great for projects like drilling undersize for final ream, or for tapping as well you can be abit off.

I looked all around here I could find no bushing that could even be modified to work, that pretty much is the reason I decided to make my own. Now of course I left the cam at home, however I still have my carb off, I fixed my sons today, his just slid in as his shaft had worn the carb housing some, however with everything together it was still a tight fit with no side play at all. Both of the carburetors were missing the bushings.

I will get some pics, Clint

Matt G. · #14 06-28-2009, 09:48 PM

Quote:

Originally Posted by clint

Both of the carburetors were missing the bushings.

From the factory, no bushing was installed. All the bushings are installed after wear has occurred and not when new.

clint · #15 06-28-2009, 11:37 PM

Thanks, that sure makes more sense now why no bushings in these two, I have two more to do as well !! I do have to question why no bushing was installed from the factory, keep in mind I'm not questioning you, just why they went to the trouble to counter-bore the housing for a bushing, and aluminum is by far not the best "bushing material" as for the factory OEM with just the shaft going through the housing, however they did last a long time. I have read where a loose throttle shaft has ruined more motors on the Kohler K series in these type than anything by sucking in dirt, and it seems I have read loosing vacuum as well.

Quote:

Originally Posted by Matt G.

From the factory, no bushing was installed. All the bushings are installed after wear has occurred and not when new.

RPalmer · #16 06-29-2009, 05:54 AM

Quote:

Originally Posted by MBounds

Now, as for as Toledo Oh is concerned:

http://yellowpages.aol.com/search?qu...lTopBox.search

Me thinks someone didn't look too hard for an Ace Hdw in Toledo.

Myron B

Myron, You don't understand. It's Hillman that is not found at any hardware or auto parts store. I have no idea how you got no ace hardware stores from my post.

RPalmer · #17 06-29-2009, 06:51 AM

clint,
I'll be checking eBay. The reason I'm looking for one is because when I installed a bushing for the throttle shaft like the one R Bedell pictured below it was so tight that it distorted a little after installing. Should this happen again I want a reamer to straighten it out, so to speak.

Know one ever says if they install this bushing with the bowl on or off. The manual shows the process with the bowl off so perhaps that is the way it is mostly done. My only experience with replacing the bushing has led me to believe I want/need two tools. 1.) 1/4" reamer 2.) Arbor press.

One other thing. As hard as it may be to believe... the throttle shaft can wear down. I would not think that aluminum could wear away steel but I found a shaft and that is exactly what happened. So look over your shaft as well for wear or "necking".

R Bedell · #18 06-29-2009, 06:59 AM

R Palmer:

The process of installing the bushing would require the Carb being off the motor.

It's been a couple of year since I done mine, but IIRC, there was an insertion tool with the kit and I used my bench vise to press the bushing. Now, after installing the bushing, no reaming was required on my end. The press was snug but not that tight. BTW....I used the Kohler Bushing.

clint · #19 06-29-2009, 07:22 AM

I did not have to remove the bowl, however I did thinking they were two bushings involved ( I'm new, and ignorant to this) after learning a bit, just remove the two screws from the butterfly, remove throttle shaft, and your ready to go...if the screws on the butterfly do not break or give trouble, and the carb is already off, as slow as I am it's a 5 minute job. I just put my carb in a vice, made a small aluminum punch from some scrap, and it was just a snug fit in my 1450 carb. No wear on the shaft at all, very little on the carb housing if any, however the bushing did tighten up what play was there.

RPalmer · #20 06-29-2009, 08:18 AM

I did mine per MBounds: I use a GreatNeck 6mm long socket to tamp them down squarely.
The tamp them down squarely part distorted the top of the bushing to where a reamer was needed. I cheated and used a 1/4" drill bit. Without reaming, the shaft was binding. Your mileage may vary. I guess on the next ones I'll but them in my vise. (but an arbor press would be nice.)