Topic: Attaching oil bath air filter to carb on 51 Merc


DDBland    -- 03-13-2024 @ 5:53 PM
  I have trouble connecting the air filter to the carb. Does the end of the filter go over the raised ridge on the carb? Should there be a gasket present? THANKS!


pauls39coupe    -- 03-15-2024 @ 8:45 AM
  Yes the neck of the filter should fit over the flange on the top of the carb. The correct filter should have a matching flange.
Some carbs had a straight neck, these were designed for the standard air filter. The oil bath filters had a bulge at the base which matched the flange on the carb.
The straight necked filter will not fit on the carb with a flanged top.


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