power steering

ct111 · Jul 18, 2013

I"ve got a MF135 with a weak power steering
system.If I use 90 wt oil it"s fine but the oil
foams and vents out the overflow. I top it off every
week or so. Question; is there a better oil I could
use or what"s another solution.

JD Seller · Jul 18, 2013

The thick oil is a Bandaid on the real problem. The pump is shot and the control valve is more than likely leaking internally too. So the thicker oil is just a short term "fix". The longer you run it this way the more stuff you will damage and need to replace to correctly fix it later.

DeltaRed · Jul 18, 2013

I think the 90 wt will eventually ruin the PS system.A new PS pump is needed.

Richard G. · Jul 18, 2013

Try some Warren AW 46 or 64 non foaming oil. You have nothing to lose.
Might help prevent loss of oil.
Richard in NW SC

mite-help · Jul 18, 2013

as others said, prob too far gone, 90 wt. can't be too good. TIP on filling. fill with engine running, work wheel stop to stop, bring level to plug hole-cap while running.

power steering

ct111

New User

JD Seller

Well-known Member

DeltaRed

Well-known Member

Richard G.

Well-known Member

mite-help

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