Question on Power Steering Pump Replacement

[ruan]

Can you repair the power steering
Pump with out replacement with
A new one

__________________
This post was auto-generated based upon a question asked on our tech article page here:

[Nick at Pelican Parts]

There are rebuilt units available. I would suggest replacing it with a new or rebuilt unit.

- Nick

[Joerg72]

There are certain "repairs" on the pump that are fairly easy. Let's say you have a pump that started having intermittent hydraulic supply issues - power steering goes well and suddenly bad - and it changed into becoming a permanent issue...

This can be caused by the following sceanario:

- The electrical pump has 4 static carbon brushes/blocks sitting on the rotor
- these brushes are having slight contact to the rotor to ensure electrical connectivity
- they are approx 2/3 inch long and spring loaded to maintain the contact to the rotor
- by time, the brushes/blocks wear and thus thus carbon dust is created
- the dust is conducting and stays contained within the electric motor of the pump
- thisin turn can cause shortages and the electric motor thus the pump to fail

What to do:
- Open the electric motor of the pump and removecthe dust with a vacuum cleaner
- check that the brushes/blocks have still material left - if not, they can be replaced ( I asked the question about part number a few weeks ago - no reply)

After removing the dust, I reassembled the pump keeping the old brushes and since then it works fine.

i would say that this is a very common scenario for the pump failure and the main job for the pump rebuilders (incl brush replacement)