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air pressure in rear shock.

craigyboy

Chimp
Aug 21, 2005
45
1
ps another question when I pump up My dhx 5.0 shock with my fox pump say to 150 psi, I take off the pump, then check it again later and its down to about 120 psi. What going on here, I thought the shock wouldnt loose any air when I detach or reattach the pump.
 

IronJim

Monkey
Sep 26, 2004
789
1
Santa Cruz Mountains
the reason is that there is so much pressure in such a small chamber that when you remove the pumpit will lose some of the psi. when i remove mine it lose 10 psi, you shouldnt be losing 30 psi though. i would try removing the pump fast, or an easy way of doing it would be to pump it up to 180 psi if you want 150 psi.
 

keen

Monkey
Mar 30, 2003
356
0
When you take an air reading the hose must fill w/ air first. If you measure 30 psi losses each time you attach the pump that is the amount of air filling the hose.