The relief valve is in the pump. It is normal for the pressure to increase
when trying to turn the rack past the stroke limits. There is even a
pressure switch to raise the idle during this condition. Of course holding
the wheel hard is abusive to the pump, rack, and hoses. It is not too
difficult to disassemble the pump and replace the seal.

Dennis

-----Original Message-----
From: Lawrence Johnson [mailto:LARRY_AVERY.JOHNSON@SYMPATICO.CA]
Sent: Wednesday, October 03, 2001 10:36 AM
To: Vanagon; Syncro@egroups.com
Subject: [Syncro] Power Steering Question

On our '86 Syncro Westfalia, the power steering pump has developed a leak.
It
only leaks when I take tight turns and it only leaks from the pump shaft
area.

My question is, is my problem only with the pump or should I look at the
rack
for the cause of the high pressure on tight turns. I have a spare pump if
that
is all that I need. But my concern is that somehow there should be a relief
valve in the rack which isn't functioning. Can anyone shed some light on how
this power steering system works?

-Larry

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