Recently I rebuild my L-4 carburetor; I set the float at 7/16” with a new ball style float valve. After putting the carb on my T and letting it set for a period of time it is leaking from the top gasket on the bowel to carb body, could my float be bad? Should I take it off and boil the float? Also, gasket on bottom of carb at large nut is leaking. Any help would be appreciated. Thank You in advance for your input.
Check your float valve to determine if it is bad as follows:
1. Inspect the float valve.
If it is a ball style it is bad.
2. Install an original style needle and seat.
You can tell if there is liquid in your float by shaking it and feeling for the splash inside. It will also feel heavy. Many times the ball type float valve will leak, I have had more luck with original seat and needle. You can set those by lightly tapping the needle into the seat with a small hammer. Make sure the seat is clean before you set it. The needle will impress it's shape on the seat. As for the bottom of the bowl, most times you will find that the bowl is dimpled in from being tightened so many time. Sometimes you can pound the bottom of the bowl flat and it will work, but mostly I put a rubber O-Ring between the bowl and carb.
Good luck Mike