Mechanical oil pressure gauge on the 7A-FE, Leaks, leaks, leaks... help me out here. Options

[Delta_Phoenix]

I went through the trouble of installing a mech. oil pressure gauge on my ST. I drive a lot, just wanted to keep an eye on it.

Well the install was fairly smooth with a little trouble finding the right T-fitting for the block so I could retain the factory sending unit. But now I can't get the damn fittings to stop leaking. I've been trimming and readjusting the ends of the nylon line trying to find a way to stop them from leaking, but the ferrules either aren't sealing against the fitting correctly or they're crimping the line severely and causing it to crack. I just can't find a place between too tight and not tight enough on these fittings. I've contemplated running copper lines to replace the nylon, at least from the block up to the firewall, but that stuff seems like it'd be a pain to route even more so than the nylon.

Has anyone installed one of these before and what's the best way to stop the fittings from leaking oil?

[zoik]

have you tried to put some thing like "loctite" over the screw?