Which model RV? It makes a difference on the answer you might get. (It helps a lot if you include a signature block on your posts so that you don't have to repeat routine stuff like what you're building.)
Paul
__________________ Paul F. Dye Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34) http://Ironflight.com
It's good form in general to use the search feature on this forum before posting a question, to see if it may have been asked and answered before. Not trying to give you a hard time, just a tip on making most efficient use of the forum.