Jerk-pump injector lines (like on the Ford and older Volvos) are actually in real tough spot when it comes to fatigue failure. Not a trivial challenge making them. It is some dang high quality steel and some are even two layers. Length of each is equal, which is why they have some weird shapes. If you have one fail (and it does happen), you really need to get the factory replacement. And if it came with clamps with rubber between lines, do not ignore them, they are vibration dampers and a critical part of limiting cyclic stress. The bends cause flexing due to the Bourdon effect and the dampers are placed to minimize that.
|