Earlier in the week I attempted to run a fuel pressure test on my 1979 280SE. On further examination, I was pretty sure I had it connected up wrong. The instructions call for the pressure gauge to be attached to the larger fitting on the warm up regulator. The warm up regulator is hidden down to the side of the engine on the M110. The bigger fitting is actually a banjo bolt on this WUR, so this time I hooked it up (hopefully) correctly. My goal was to test cold control pressure.
The readings made more sense this time. System […]