alistairolsen
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| posted on 31/3/11 at 01:23 PM |
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Running a PAS rack dry - likely damage?
If I was to drain the majority of the fluid from a hydraulic PAS rack by moving it to the end of its travel in both directions, and then seal the
ports with a loop of pipe between them so it can breathe, would it be likely to cause any damage for a few hundred miles?
Cheers
My Build Thread
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Chippy
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| posted on 31/3/11 at 02:26 PM |
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I would think that it will be fine, just make sure that it's well greased up. Not too sure that you need to remove the fluid though, just fit a
loop of tube between the two feed holes. HTH Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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deezee
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| posted on 31/3/11 at 02:31 PM |
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Just a rack would be fine. The power steering pump normally suffers problems though if its left empty of fluid.
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hughpinder
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| posted on 31/3/11 at 03:01 PM |
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When the fluid pipe on my rover 820s power steering burst, I just disconnect the belt to the PAS pump and drove it without the assistance (for about 3
months) - but it was only ever going to go to the scrappies from that point anyway.
Hugh
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big-vee-twin
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| posted on 31/3/11 at 03:42 PM |
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I had a Freelander that I destroyed the pump and the rack due to no oil
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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britishtrident
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| posted on 31/3/11 at 04:04 PM |
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quote:
Originally posted by hughpinder
When the fluid pipe on my rover 820s power steering burst, I just disconnect the belt to the PAS pump and drove it without the assistance (for about 3
months) - but it was only ever going to go to the scrappies from that point anyway.
Hugh
Why didn't you just loop the hoses together I've done it a few times when the loop of pipe that acts as a cooler corrodes --- works fine
in the uk climate
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alistairolsen
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| posted on 31/3/11 at 04:20 PM |
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Im converting to PAS, but I cant find the required mount so I plan to install the rack and new front suspension but not fit the pump at all yet....
My Build Thread
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rusty nuts
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| posted on 31/3/11 at 07:31 PM |
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Not sure it would be legal to drive on the road without the pump and pipes etc???
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britishtrident
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| posted on 1/4/11 at 11:27 AM |
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quote:
Originally posted by rusty nuts
Not sure it would be legal to drive on the road without the pump and pipes etc???
MOT failure but beyond that ?
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Mr Whippy
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| posted on 1/4/11 at 12:01 PM |
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done it and no damage to either the electric pump or the rack
Fame is when your old car is plastered all over the internet
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blakep82
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| posted on 1/4/11 at 12:10 PM |
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thought it was 'possible' to drive with the pump drive belt removed, so still full of fluid and it would be fine?
however, sure its a MOT failure, as you essentially have inoperative steering. as a power steering system, its simply not working. steering is a
pretty important part.
also, PAS racks are not manual racks wich have been adapted to provide power assistance, but are a completely different design internally, and will
give VERY heavy steering if not powered. i'd find a manual rack for now, until you find the mounts you need for the pump
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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bimbleuk
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| posted on 1/4/11 at 01:15 PM |
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Done quite a bit on the RX7 V8 conversions. For a permanent conversion on those there are a couple of oil seals inside the rack which can be removed
to reduce the resistance. Also the pinion assemble is welded to remove some slop in the oil control valves which is usually taken up with the oil
under pressure.
Not my personal preference, on a heavy tin top anyway.
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