RE: TWO separate engine problems
Assuming this is your engine
http://www3.towerhobbies.com/cgi-bin...&P=SM&I=LXFV71
then
http://www3.towerhobbies.com/cgi-bin...?&I=LXFW35&P=Z should be the part you need. Your local LHS should be able to get this for you without the shipping charges.