Join Date: Apr 2010
Ferrari Life Posts: 2,196
Dave, I have an assortment of tapered silicone plugs and rubber caps (think vacuum caps) that I use and they work pretty well.
The threads on many of these lines can be tough to match and tougher yet to get a good seal. I did use threaded caps on my 550's fuel lines, but they were a bear to find.
Brake & clutch lines are even tougher with their weird double inverted hyperbolic convex/concave bubble flared fittings, etc. Even if you can find a threaded cap to match (usually an M10x1.0), the doggone cap will still leak because it undoubtedly will have the wrong flare configuration.....
So now, I just ram tapered plugs in the lines
'99 550, Rosso Corsa / Nero, S/N:114654, Assy: 31836, Engine: 52084
High mileage, low compression, and missing on a few cylinders.....just like my cars.
Maranello Skunkworks Team Member