Sat Mar 03, 2018 9:34 am #1594861
jaycee58 wrote:I don't want to be overly pessimistic but surely a fuel tank drain shouldn't be that difficult to seal? I would examine the the thread in the tank drain very carefully for a very small crack axially along the thread or emanating radially from the drain.
We are talking two 'seals'.
Firstly with the existing drain in situ, one inserts the tester to take the sample, and on removing the tester we expect the spring loaded pin or whatever to close against the body of the drain thus sealing the orifice and stopping the fuel flow. Sadly this did not happen, so presumably a small flake of debris is preventing this.
I have learned over time that if a part is 20 + years old and gives a problem (and looks as though it has other flakes that could provide a repeat performance) it's better to just bite the bullet and buy a new replacement. £18c from Andair for a new stainless steel one with viton seal (I assume for the spring loaded pin!).
The second seal is of course for the complete drain unit into the metal insert in the fibreglass fuel tank, for which as it seems crush washers are not used, some sort of goo is required, that Trent has very kindly sent me.
Of course it's possible that the pin did actually re-seal and something metallic fractured at the same time, but even I'm not that paranoid..........yet.
Suiting the action to the words