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What causes low pressure readings ?

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DorianL

Member
Joined
Jun 7, 2002
Messages
231
I'd guess some of it could be the stock PR. (The srping I pulled out of the pump looked pretty weak)

Is it usually from worn bearings and rubber ?

MTIA,

D.
 
There are a hundred things that could cause low pressure.

Among them are:
  • weak PR spring, as you stated
  • small TV boost valve
  • leaking TV boost valve assembly
  • bad sealing rings and/or lip seals
  • warped pump castings
  • sticking pump slide
  • bad filter seal
  • weak TV plunger spring in the valve body
  • malfunctioning TV limit valve in the valve body
  • cross leaking valve body gaskets
 
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