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DLTX Carb Bushings

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Mike P

05-27-2002 08:30:20




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What's the best way to replace the throttle shaft bushings on a DLTX carb (off my 48 model A)?

I stripped, soaked, cleaned and scraped 50 years of crud off and out of the carb. I inspected the parts and repainted the body. Now I'm ready to put it back together with new gaskets and other misc parts.

My throttle shaft was quite worn. Prabaly about a 1/16" narrower than stock. The bushings are shot as well. I have a new throttle shaft and bushings but don't know the procedure for replacing the bushings.

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Mike P

05-29-2002 05:18:05




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 Re: DLTX Carb Bushings in reply to Mike P, 05-27-2002 08:30:20  
I had good success with a vice. I pressed out the top and bottom bushings since the top was REALLY worn and bottom was a little worn. Since I had both bushings, I used the vice and a socket to press them in. Worked pretty well.

Now I have to ream out the bushings since the shaft is TOO tight.

Thanks for your help.

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Seamo

05-28-2002 17:55:42




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 Re: DLTX Carb Bushings in reply to Mike P, 05-27-2002 08:30:20  
Get yourself 6in. of 7/16 drill rod .turn down the od to.425. Turn the part that will go into the bushing to .310.x1in. that will make a nice driver. The OD. of the throttle shaft will very in size from different vendors including Deere usually .309 to .311. I drive my bushings into and past the bore. That way I can take my die grinder and shape the end of the bushing to bore of the carb. Then I ream my bushings to size using solid valve guide reamer, .310,311,312.The throttle shafts are coated so make sure they are free of burrs. The bushings are installed first at the factory before the carb body is bored. This will make a nice fit for the throttle plate. Inspect your throttle plate alot of them are worn on the bottom especially if they have run in a carb that the bushings have been replaced and not shaped to the bore.Your carb will idle better if you do these easy steps. If you have any questions E-mail me.Earl

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Rman

05-27-2002 20:12:07




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 Re: DLTX Carb Bushings in reply to Mike P, 05-27-2002 08:30:20  
You can just take a punch and hit it out the other side into the chamber, usually the top is the only one that needs replaced. When you put the new one in there are two ways to do it,you can machine a shaft and make it to fit perfect into your new bushing and keep a lip on it so you can smack it down in and it wont expand, or you can put it in a vice and press it in, but you will probably have to ream it so the shaft will fit in because it will swell the inside of it and it will be too tight.

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