Hi guys, I just swapped out the old crappy nylon tubing to the copper stuff, and now my O/P gauge buzzes with the same frequency as the engine speed. Did I damage something inside it? or is it just the harder tubing transmitting vibration? Also the copper stuff seems slower to respond, I'm wondering if I got teflon inside the tubing on install. Any thoughts about the buzzing>?

 

You're telegraphing the mechanical vibration throught the harder copper line.

Slower response time could be because of a kink or partial clog. Is the ID the same as the nylon tubing you replaced?

 

Good call, it may be a smaller ID, I double checked for kinks and I think its fine. hmm, thats too bad about the vibration. Its a bit noisy now. Im going to double check for kinks, and next time I may go AN/ SS flex lines