Join Date: Sep 2000
Location: Washington, Michigan USA
The correct plastic line has a brass insert in the end (where it seats in the bottom of the female fitting), and the compression ring is tapered, with two small slots at the end which helps it grab the O.D. of the line and compress the plastic against the brass insert inside the line. Regular 1/8" compression rings won't work, as you have found out. Rick's and others have the right kit (made by Classic), with the inserts and tapered/slotted compression rings already installed.
Regular barrel-shaped 1/8" compression rings (like you see in most aftermarket packages) will work fine, but only with the matching standard 1/8" plastic line and standard 1/8" female compression fitting; the factory female fitting is special, and only works with the special line with the insert and tapered/slotted ring.
'69 Z28 Fathom Green