ok so here goes---started this evening to replace the thetford black tank dump valve on my 1965 caravel
. i am documenting well because when i looked for information on the forum i was unable to find much.
let me first say that this is not for the feint hearted. i have quite a bit of experience building a few hotrods and did most of the work on renovating my caravel
. the biggest issue is that everything is rusty and degenerated.
it is not impossible by any means but you have to be a little aggresive.
first images show where we start. you have to make access removing belly pan by drilling out rivets. i also use a die grinder A LOT. you will see it used here on rivet heads and later on the valve itself. i use it with a compressor.