Reply To: How do I get the needle valve bushing back in?

[fisherman6]

If the threads get too sticky that can be a problem. I have had that problem as well. I have had to remove the packing washers and soak the needle and sleeve in PB Blaster and give them a little shot with the heat gun to get them loos enough to start moving again. Once it is off there, clean the threads the best you can inside the bushing and the outside of the needle before putting it all back together with new packing. You may have to put the control knob back on to be able to turn the needle once the packing nut is tight enough to hold the sleeve stationary. I have heard to not use any kind of locking compound on the sleeve, but I really don’t understand why not to. as long as you use care to not get it in the threads. I’m not recommending using Loctite on the outside of the sleeve, but I do not see how that would negatively affect anything. Maybe someone can explain that to me so I understand it. As far as I can tell, they carburetors were made this way just because cutting the threads that close to the needle seat is not practical. It is much easier to just drill the hole and insert the sleeve during assembly. If the sleeve was permanently affixed inside it should have no negative effects on the function of the carburetor.
-Ben

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