Home › Forum › Ask A Member › Sealant or not on old NOS fiber gaskets? › Reply To: Sealant or not on old NOS fiber gaskets?
gaskets used for sealing surface under no great pressure like base gaskets, carb gaskets to seal air can usually be made from common rolled up gasket material from auto shops… or simply purchased but some cyl head gasket frequently have a metallic rim because of the high pressures and temperature of the cylinders . Home made gaskets may simply burst causing a drop of compression or internal water leaks .. it is best you use available ones on the market just visit vintageoutboard.com it likely has all you need
I have used Sierra stuff with no problems. check also on EBay or Amazon.
carb wise if the floats looks decent just use it. old cork ones may have dried up and should be replaced. If the cork is decent just sand it down a bit with 150 grit. They can be reseal using fuel proof model airplane “dope” . I have used crazy glue seems to work ok just don’t inhale the fumes and protect your eyes!! wash the carb body parts and clean out all orifices and blow dry. on smaller carbs there is a side orifice feeding fuel to the top..make certain it is clean!!
carb test…. when done reassembling carbs air can be blown IN while held upside UP flipped over air must not enter the carb if air goes in it means the needle is not seating properly … take it apart and fix. Carbs and toilet bowl reservoirs work the same way! when FULL they stop the inflow when the float rises.
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