Home › Forum › Ask A Member › More modern question 9.9 Johnson question
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fleetwin.
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February 21, 2017 at 2:14 am #53354
Mark, I was made aware that the carb needle in question here is a 2-piece affair. It has a stainless steel tip inserted into the end of the threaded brass part that you had in your hand in the pictures. The piece that is stuck in your carb body is the stainless steel point. Heat should have the same effect with this difference in materials. There is more to the piece that is stuck than just the tapered tip though. The piece should be long enough to be able to gently wiggle the flat end that was inside the brass with an awl or pick or something similar. With heat and a penetrant and a wiggle and a tap, it ‘should’ come out. I hope this helps.
-BenOldJohnnyRude on YouTube
February 21, 2017 at 2:39 am #53356I will try that. Good idea.
February 21, 2017 at 2:59 am #53359Having one of these motors I wonder if the threaded hole and the metering hole are not concentric, causing a side load on the needle. Or maybe the nylon bushing that is supposed to guide the needle end is causing a side load. That would fatigue the stainless needle. I just cannot see how one could break it off in the carb any other way. If trying to work it off from the threaded end be careful not to mess up the threads.
February 21, 2017 at 1:08 pm #53368have you tried freezing and heating the carb while it soaks oil….the cycles may let the oil penetrate a bit more and a few good wacks will eventually cause it to just… drop out ???
Joining AOMCI has priviledges 🙂
February 21, 2017 at 4:53 pm #53375I have heated and cooled it 5 or 6 times with the chamber filled with penetrating oil. Hasn’t budged yet. It isn’t in a place that allows really good whacks.
February 21, 2017 at 8:37 pm #53380How much of the SS tip is visible inside the threaded portion of the carb? It almost appears as if the SS tip, which is about .5" long just pulled out of the threaded brass portion. Perhaps you can slip a small pick/dentist type tool inside the threaded portion of the body, then rock the broken SS shank/needle out of the pocket. Again, be gentle, rocking the needle might distort the aluminum mating surface that the needle is stuck in…
February 21, 2017 at 11:51 pm #53388quote fleetwin:How much of the SS tip is visible inside the threaded portion of the carb? It almost appears as if the SS tip, which is about .5″ long just pulled out of the threaded brass portion. Perhaps you can slip a small pick/dentist type tool inside the threaded portion of the body, then rock the broken SS shank/needle out of the pocket. Again, be gentle, rocking the needle might distort the aluminum mating surface that the needle is stuck in…That’s exactly what I was talking about.
-BenOldJohnnyRude on YouTube
February 22, 2017 at 11:56 pm #53445quote Fisherman6:quote fleetwin:How much of the SS tip is visible inside the threaded portion of the carb? It almost appears as if the SS tip, which is about .5″ long just pulled out of the threaded brass portion. Perhaps you can slip a small pick/dentist type tool inside the threaded portion of the body, then rock the broken SS shank/needle out of the pocket. Again, be gentle, rocking the needle might distort the aluminum mating surface that the needle is stuck in…That’s exactly what I was talking about.
I see that now buddy! I should spend more time reading and less time typing….D
-Ben -
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