rl153 wrote on 07/06/13 at 14:00:54:i'm about to install my raptor petcock.i bought the 5/32 rubber vacuum caps.Will they really fit,they look so small?Also to hold the vacuum caps on,can i use permetex gasket sealer?another question ,if i use a screw and gasket sealer,should the screw fit tight, a sheet metal screw ,or say a brass machine screw? if the screw isn't that tight ,the gasket sealer will hold it in,right?thanks
I use a 3/16" cap. It fits well. They appear to rot quickly so keep a spare or 2. I replaced mine with a 7/32" in a pinch. Well, that pinch has 1000 miles on it and it seems to be fine. One day I will remember to put my newly purchased 3/16" one on.