

| Subject: | Re: PS pump pressure testing? |
| From: | Max Wellhouse |
| Date: | Fri, 28 Jun 2002 05:08:03 -0500 |
I was under the impression that there was a crude filter disc in the plastic resevoir for the PS fluid. Be careful if you remove the low pressure line to that unit for cleaning as I snapped off the hose fitting and a new resevoir was over $60. I decided then and there I didn't need the PS that bad and still don''t 2 years later. DM&FS At 10:31 PM 6/27/2002 -0400, Myron Lind wrote: >The 1500 psi is only between the high pressure side of the pump and the PS >rack. After coming out of the rack it is low pressure. Thus the plastic >reservoir holds it quite nicely. Many hydraulics run at 1500-3000 psi, some >higher. Normal stuff for hydraulics. > >Probably a bigger problem with the PS system is that the oil is not filtered >and most of us rarely change the oil. Vane type pumps (the kind that are in >the Van) need very clean oil. The pressure relief valve allows the pump to >"idle" and spin but not pump as the pressure reaches a certain level (or >perhaps the flow gets reduced, I am not clear on this). I would suspect >dirty oil would be harmful to the pressure regulating valve, as it would to >the seals in the entire PS system. > >Keep it clean, don't worry about the pressure sounding high. It's normal. > >Myron Lind >Harrisonburg, VA >1982 Diesel getting mechanical TDI > >-----Original Message----- >From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf >Of s w >Sent: Thursday, June 27, 2002 11:47 AM >To: vanagon@GERRY.VANAGON.COM >Subject: Re: PS pump pressure testing? > > > > Bentley says that the appropriate pressure should be > > around 1500 PSI! > >just a question, maybe a dumb one at that...but i just >have to ask...how is it that our little plastic power >steering resevoir's can handle that pressure? assuming >that in a sealed system the pressure would be the same >throughout...anybody??? > >===== >Scott Wilson >85 GL Westfalia > >__________________________________________________ >Do You Yahoo!? >Yahoo! - Official partner of 2002 FIFA World Cup >http://fifaworldcup.yahoo.com
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