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Power steering pump rebuild

chrisg

chrisg

Member
Probably a bit late now, but..... You can get a fully reconditioned pump on an exchange basis for ~ £120 from these people in Wakefield: http://powersteeringracks.co.uk/zencart/index.php?main_page=product_info&cPath=126_254_403&products_id=403
 
mine was leaking from the main seal and I bought a replacement for 70p from a local seals supplier who measured the recess in the pump to get a perfect fit.
 
Pump off my S2 stripped, cleaned, replated where necessary etc etc - now ready for new seals.
Im aware Porscheshop do the kit for £25 - just seems a bit steep for what you actually get. Not to mention their past service record :( Anyone know of any other suppliers? Admittedly I haven't tried OPC yet.
Rob
 
I take your point about a cheap and cheerful repair - well done BTW. My philosophy with the 951 though is that it's 22yr old car - things will and do go wrong with it. When they do, not withstanding massive outlays (e.g. ~ £1,300 for an ABS pump) I try to replace with a new or exchange part, especially anything that has fluid in it or has a rubber component that can crack, perish or generally distintegrate over time. A good example of this was the flexible clutch hose - after 22 yrs of being bent at a strange angle right above the exhaust it was starting to perish - new part from OPC delivered by post £33 plus 2hrs of my time to fit. Not worth the hassle for it to let go and pour pressurised brake fluid all over the exhaust and wastegate.....
 
I got mine from somewhere in the USA, might have been US ebay, i forget now. The expensive part is probably the strange shaped seal and the plastic reinforcing part which goes with it. I rebuilt a spare pump using the kit and it fitted great, although I've not swapped pumps yet. I suspect the kit I bought is the same as you'd get from Porschshop.
 
I thought exactly the same but the difference it made mate was immense!!! Overpriced as they are!!! I know Alasdair (sulzeruk) was thinking of maybe putting a kit together for sale. It may be worth speaking to him about har far he got with it.
 
BTW if you buy a reconditioned pump for over a 100 quid it is likely that they have only cleaned it and changed the seals in it. I did the same in less than an hour. OK it didn't look good enough for sale from the outside but as for the internals well they were as good as new. My guess is the pump is good for another 20 years [:)]
 
If you havn't already contact your OPC, if PorscheShop want £25 I'd expect it to be around £17 from OPC, after all PorscheShop simply buy from them and bump the price up!!
 
Yep will give OPC a call just to see... in case you haven't tried - its very easy to strip and although mine was working fine, i figure whilst doing lots of other stuff (engine out) after 19 years, seals replacement might be wise preventative measures. There is actually a good little video on YouTube.... if anyones interested... Although personally i cleaned mine up before pulling it apart first! http://www.youtube.com/watch?v=PsZOhqSfy-Y
 
Thats a really video, mine does have a very minor leak and can squeak a bit a full lock so I might have a go at that one weekend, you'll have to let us know how much the kit is from OPC
 
I just did this job, I don't think OPC do a kit. I got mine from Rennbay in the US, total cost delivered just under £20 - takes a few days to arrive but then I ordered mine just the day they closed UK airspace for the Icelandic volcano. The hardest bit of the job was getting the circlip off the pump shaft - so not hard at all really.
 
ORIGINAL: Eiger mine was leaking from the main seal and I bought a replacement for 70p from a local seals supplier who measured the recess in the pump to get a perfect fit.
Click to expand...
I did exactly the same on my first 944 - piece of cake to change the seals, and only a few pence for the parts from a hydraulic hose supplier. Just make sure you have a very clean bench...
 
What an excellent video guide, superb find. Gives me the confidence to have a go at this at home as I've never done one before. Modern pumps seem to be sealed units you just throw away and replace. Lovely to see some old engineering which lasts decades and can be refreshed simply by replacing a few seals because the mechanical components are that good and well designed. Reminds me why I love Porsche. My only question on the video is that he replaces the main pump seal with the plastic insert pointing out and doesn't mention a preferred direction to install this. Wouldn't it be better to have the plastic support on the inner face so the outer face which turns against the housing is a solid piece of rubber rather than one with a slit in it for installation of the plastic?
 
Yep there are a few good little videos on there actually - if you'd rather 'watch before you try!' Heres another.... http://www.youtube.com/watch?v=O2lUqvga0n0 ok its part three but use the navigator to find the others. Busy day - haven't phoned OPC regarding seals but will update.
 
I wonder if there is any mileage in a section for worthy video tutorials like this? It does highlight the ease that some jobs can be tackled with, and of course any pitfalls, in a way that sometimes Clarkes Garage cant always highlight being the written word. Anyone else got any decent ones for us?
 
I would agree with that idea. Could maybe even film a few with the jobs I plan to do later this summer
 
Rennbay kit ordered last thursday, arrived this thursday - $20 = $12 postage (equated to £22) Fitted really easy.... results? well the engine is out so wont know for a while, but the new seals were very 'plump' in comparison to what i took out. If youre capable of removing the pump this is definitely worth doing I reckon judging by how easy it was and compared to the the cost of a 'rebuilt' pump (which I can only assume has only had the seals changed and a clean up)!
 
You are dead right mate. It will look prettier than yours but that will be the only difference. I can never stress enough how easy this is to do with such great results. Just make sure you have a microscopically clean work area when you do it. Even specs of dirt are bad news for hydraulics. Plenty of brake and clutch cleaner for cleaning parts. I love that stuff as it evaporates quickly after doing it's work.
 
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