Carburetor question

Travis798

Seaman Apprentice
Joined
May 27, 2010
Messages
30
Hi everyone. I just purchased my first boat and I'm trying to get it running. The engine is a 68 Johnson 40 hp, and my problem is that I'm missing the low idle needle valve. I was able to find a needle valve, but I have yet to find the packing and packing nut. My question to you guys is, can I make my own?

I'm thinking about taking a brass fitting and tapping the center of it for the needle valve and using an o-ring for the packing. Would this work or would there be a problem I'm not seeing? I don't pretend to be a mechanic as I don't know enough to even hold a mechanics wrenches, but unless I'm overlooking something, this seems to be something I can remedy fairly easily. Any comments/feedback/suggestions would be appreciated.

*Edit*

Okay, so I found that the packing is available in the rebuild kit, so I can get that handy. Unfortunately I also saw that along with the packing nut I need a bushing. I can special order the bushing and packing nut but it will take a couple of weeks to get, and I'd love to get this thing going before then. I'm still fairly certain making a packing nut wouldn't be much trouble, but this bushing throws me for a loop. Does anyone have any suggestions there, or does anyone know of another readily available carb that would replace the one that I have? I'm willing to spend money, but I'm not wanting to wait. Obviously I will if I have to, but that would make me sad :( I only have a few weeks before I have to be in Florida for work, so by waiting it would be next year before I could get this boat on the water.
 

Travis798

Seaman Apprentice
Joined
May 27, 2010
Messages
30
Re: Carburetor question


Just bought a carb kit. No bushing in it. I'm sure I can figure out something, I just wanted to make sure I wasn't missing something obvious by planning to make my own packing nut.

*Edit*

I got her running like a top now. Had to make my own bushing but she purrs like a kitten. Gonna put her on the lake tomorrow and see how she does.
 
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