I recently put a rebuild kit in my 1948's 8N TSX 242 carb. The needle valve was sticking and gas was running out the air intake (sediment bulb shut-off was leaking).
During the rebuild, when I took the old idle jet out, I noticed it was just a little deeper than flush although the threads went way down in the hole.
When I screwed in the new jet (after extensive cleaning of the carb), I expected the threads to have a positive stop at some point. However, they did not and when the jet bottomed out, I found that I could not unscrew it to a higher position. I have concluded that I have made an error inasmuch as the jet is way down where the Idle Mixture Screw enters at the bottom of that orifice. In short, the Idle Jet is stuck at the bottom of its hole.
I went ahead and reassembled and mounted the rebuilt carb back on the tractor and did the suggested starting points for the Main Mixture (one turn) and the Idle Mixture (one turn) screws.
I found that the tractor will start and run, however it is [b:bc03cc4f1e][i:bc03cc4f1e]very hard starting[/i:bc03cc4f1e][/b:bc03cc4f1e]...cranks for a long time before starting. Almost like you have to flood it to get it going. It is not so much of a problem in this warm weather, but it is going to be a problem in the Winter when I have to plow snow.
Before the rebuild, it started very well, even in the Winter.
What are my options? Just abandon that carb and get a new replacement? Or is there something I can do that I am overlooking?[/u]
During the rebuild, when I took the old idle jet out, I noticed it was just a little deeper than flush although the threads went way down in the hole.
When I screwed in the new jet (after extensive cleaning of the carb), I expected the threads to have a positive stop at some point. However, they did not and when the jet bottomed out, I found that I could not unscrew it to a higher position. I have concluded that I have made an error inasmuch as the jet is way down where the Idle Mixture Screw enters at the bottom of that orifice. In short, the Idle Jet is stuck at the bottom of its hole.
I went ahead and reassembled and mounted the rebuilt carb back on the tractor and did the suggested starting points for the Main Mixture (one turn) and the Idle Mixture (one turn) screws.
I found that the tractor will start and run, however it is [b:bc03cc4f1e][i:bc03cc4f1e]very hard starting[/i:bc03cc4f1e][/b:bc03cc4f1e]...cranks for a long time before starting. Almost like you have to flood it to get it going. It is not so much of a problem in this warm weather, but it is going to be a problem in the Winter when I have to plow snow.
Before the rebuild, it started very well, even in the Winter.
What are my options? Just abandon that carb and get a new replacement? Or is there something I can do that I am overlooking?[/u]
