Post by
Wulfgang »
https://forums.nicoclub.com/wulfgang-u10889.html
Tue Oct 25, 2005 2:41 am
Both the front and the back pumps (or just the front for non-HICAS) regulate pressure using a bypass valve located in the discharge port. If you remove the port (the part that banjo bolt bolts into), you will see what I mean.
It is just a spring loaded valve, and I bet you can change the discharge pressure by changing the spring strength. That would be my preferred way of changing the pressure since it leaves the internals essentially unmodified. Alternatively, you could try to install a bleeder in the discharge line (maybe use the pressure switch port?).
Completely disassembling the pump is easy. The only thing holding everything on the shaft is that one small c-clip vududoc spoke of. But the clip is easy to remove... you just slide it upwards over a small bump on the shaft.