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SORN
by OldSkrote - 31/07/25 02:07 PM
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New
by Rex_tulips - 30/07/25 07:59 PM
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Forums34
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Aug 24th, 2023
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Joined: Aug 2013
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Formerly known as Aldermog Member of the Inner Circle
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OP
Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 14 |
A seemingly simple question....what powers the power steering pump on a 2014 Plus 8, is it a belt drive or an electric pump?
If it is a belt drive is there an electronic clutch, so the pump only turns when needed, or is it on all the time?
And why does it need an oil cooler for the power steering fluid?
Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...
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Joined: Aug 2013
Posts: 3,383 Likes: 13
Talk Morgan Addict
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Talk Morgan Addict
Joined: Aug 2013
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No idea about the first one, suspect it's electric but not sure? The belt driven ones are normally running all the time and there is a pressure relief valve that allows fluid to 'cycle' back to the reservoir......however, that's on systems I have worked on and 5 years after retiring is a long time in development. Driving anything takes HP and HP doesn't grow on trees so in the search for every MPG (hence electric PAS) so would not be surprised if they had an isolator clutch but for safety it would need to be bloody bullet proof so my money is on it being electric and all belt systems being clutch less....happy to be proved wrong, happy to learn
As to a cooler, if you pump hydraulics no matter what method you use for pumping you will create heat, heat affects viscosity and that will affect the feel and efficiency of the PAS so simple to fix a cooler inline, it's been the case for many, many years on larger cars.
BR Colin
Who used to be a Spanner Juggler
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Joined: Nov 2013
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Just Getting Started
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Just Getting Started
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The Plus 8 has a hydraulic system.
If it were electric and groaned that much, something would be seriously wrong!
M
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Joined: Apr 2012
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Charter Member
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Charter Member
Joined: Apr 2012
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Mine groans a bit too. The steering. Obviously. 
+8 4.8
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Joined: Aug 2013
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Talk Morgan Addict
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Talk Morgan Addict
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The Plus 8 has a hydraulic system.
If it were electric and groaned that much, something would be seriously wrong!
M The question was about how the power steering pump is driven, belt driven or electric driven hydraulic pump?
BR Colin
Who used to be a Spanner Juggler
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Joined: Aug 2013
Posts: 3,383 Likes: 13
Talk Morgan Addict
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Talk Morgan Addict
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The Plus 8 has a hydraulic system.
If it were electric and groaned that much, something would be seriously wrong!
M You have never hear an electric pump system on a Ford then.....;-)
BR Colin
Who used to be a Spanner Juggler
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Joined: Apr 2014
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Talk Morgan Addict
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I think he meant if we're electric PAS not electric pump.
Mark - No Longer driving Archie the Old English Sheep Mog........... 2010 Roadster 3.0 V6 (S3) 
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Joined: Nov 2013
Posts: 34
Just Getting Started
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Just Getting Started
Joined: Nov 2013
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Sorry, it's belt driven.
I don't think that there are any electronics involved as it's the smaller non-active pump.
M
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Joined: Aug 2013
Posts: 15,794 Likes: 14
Formerly known as Aldermog Member of the Inner Circle
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OP
Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 14 |
Sorry, it's belt driven.
I don't think that there are any electronics involved as it's the smaller non-active pump.
M That is what I thought... BUT a fellow member of LogMog with a very early Aero Plus 8 has a power steering problem and has been told by a dealer that the pump is electric and will have to be replaced: needless to say it is "wing off". I thought this odd and wanted to get a second opinion....
Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...
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Joined: Apr 2012
Posts: 38
Just Getting Started
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Just Getting Started
Joined: Apr 2012
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The early Aero 8's used the BMW Mini Hydraulic electric system. This means that the racke etc is conventionally hydraulic, however the system is pressurised by an electric pup thus having no parasitic loss from the engine.
I suspect it is the same on the newer cars as there are no current BMW's with engine driven hydraulic steering.
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