If I’m reading the first 3 digits of the ID number correctly, that would be a model 571.58601 which would be a 1947 model 5.5hp motor. The 3 digits of the motor ID number make up the last 3 digits of the model number. Here’s a link to Elgin model numbers.
http://www.elginoutboards.org/modelnumber-sequential.htm
You should be able to back the broken carburetor stud out once you remove the carb.
Bob
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp
“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."
