It’s been reported to me that the C120/140 uses the same gascolator as the ragwing 170, and that the gasket made of cork for it is failure prone (no surprise there…most vulcanized cork gaskets don’t survive continuous submersion in gasoline).
The group also says that Spruce offers a nitrile (buna-n) replacement, Part# 05-11189 for $11.50: https://www.aircraftspruce.com/catalog/ ... -11189.php
Hope this helps.
Possible ragwing 170 gascolator gasket
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Possible ragwing 170 gascolator gasket
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

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