supercub Posted October 9, 2023 Share Posted October 9, 2023 (edited) I have a 20s Marvel Schebeler carb that I have some questions about. How many turns out is a good baseline for the main mixture needle? What is the fuel level from the top of the carb body? The float height setting? Thank for your help. Edited October 9, 2023 by supercub (see edit history) Link to comment Share on other sites More sharing options...
dibarlaw Posted October 10, 2023 Share Posted October 10, 2023 My 1925 Buick Marvel takes about 1 turn back after needle has seated. Link to comment Share on other sites More sharing options...
supercub Posted October 10, 2023 Author Share Posted October 10, 2023 Thanks Link to comment Share on other sites More sharing options...
Oldtech Posted October 11, 2023 Share Posted October 11, 2023 As DB says, one turn or maybe just 3/4. and start the flapper spring adjustment flush with the lock tang and work from there, assuming the correct spring of course. Link to comment Share on other sites More sharing options...
supercub Posted October 15, 2023 Author Share Posted October 15, 2023 I'll give it a try thanks Link to comment Share on other sites More sharing options...
RonDup Posted October 15, 2023 Share Posted October 15, 2023 See if this helps any https://ia801700.us.archive.org/7/items/schebler-carburetor-model-d/Schebler carburetor Model D.pdf This is specifically for the Model D as used in my Sears Motor Buggy Link to comment Share on other sites More sharing options...
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