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Hydraulic oil filter - 85 UrQ
The hydraulic oil filter in the hydraulic reservoir in later year UrQs is a
different design to earlier models. The earlier version filtered the return
fluid from the power steering through a paper cartridge filter. If this
blocked, flow was diverted through a band filter. The 85 UrQ has no paper
filter - just the band filter which is retained by a top cover plate under
Having drained the hydraulic reservoir to change the hydraulic pump, I decided
to check the filter. It is a fibrous material and was obviously blocked with
a deposit that looked like coagulated oil. The backpressure had caused the
filter element to swell outwards.
A new element is going in when the part arrives. Suggest next time anyone is
working on the hydraulic system, that the filter be checked.