I'm getting ready to replace the radiator tank [not the radiator, but the top tank which holds the filler cap] on my '01 WRX, 2.0 turbo. Looking for any heads up/advice on what I'm about to get myself into.
Background- The filler neck [which holds the cap] blew out. The weld that holds it to the top of the tank came apart. I cold welded [JB weld] the neck back on in June, then put about 6k miles on it until the cold weld gave way. I re-welded it a couple times since, each time holding for a couple thousand miles. The last weld did not take at all, probably because I cut off the base of the neck, as I noticed it was getting seriously deteriorated, thinking I would cold weld the neck directly to the top of the tank... well JB doesn't "stick" of course, it needs something to grip to. So that was a "bust".
Anyway, the time has come to replace the whole tank.
Last quote I got on the part was ~$120 and the dealer said the new tank [at least the top of it] is plastic [?!].
Anybody done this operation before?