Flying C Farms Posted February 15, 2012 Report Share Posted February 15, 2012 Have recently replaced my o-rings on the CTSW fuel caps. The invoice from Flight Design says they replace C9997730H. Has anyone else replaced these and do you have trouble opening the fuel caps as it feels like metal to metal contact and make a pop when opening(breaking it loose). The good news is so far have not noticed any fuel stains and will be able to test the breaking strength of the fuel dip guage. There has to be a simple reason why both tanks hold 17 with 16.5 useable, but the dip guage is has different markings for each side. Thank you for your imput. Link to comment Share on other sites More sharing options...
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