You do know theres a search button for a reason?
The reciever needs to be ballooned. Take a party balloon and squeeze it inside and put a ziptie on the open end where the water comes out.
Put CA glue on the screws and cracks in the servo case.
Mount the ESC high on the chassis or enclose it in some sort of case. DO NOT BALLOON IT OR IT WILL OVERHEAT!
Electric motors do not need anything and I don't know about nitros
WD40 the Chassis parts and make sure you dry everything when you're done so nothing rusts.
I had made a huuuge guide for this but never posted it....maybe I'll get to it someday...James said it best: http://radiocontrolzone.com/showthre...=waterproofing