reconditioning the power steering pump

[520Ichester]

Is there any way of reconditioning the power steering pump on a 520i M20 as it sounds like the bearings are about to fail, and after replacing the power steering pump is there any bleeding required.

[shogun]

Some people say it is impossible, others say they did it. If you want to give it a try, here is the page of Max Fretter with some info
http://www.8ung.at/behrens_homepage/maxfretter/freeyellow.com.html

[520Ichester]

I am awaiting an email from the owner of the site, but if anybody else has the info then please let me know. :-)

[Martin in Bellevue]

I rebuilt my power steering pump a couple years ago. Eric rebuilt his pump also. There isn't much too the job. Guess I should have taken pictures.
The hardest part of the job is convincing yourself to break the pump halves apart. The new gaskets have made things very quiet.
I think JubJub has the pump from the parts car. If he ever orders a gasket kit, we'll take some pictures & post.

[Bill R.]

can order the gasket from bma or from bmw as Martin said and here's the procedure.http://www.bimmernut.com/~billr/images/pump-2.jpg http://www.bimmernut.com/~billr/images/pump-3.jpg http://www.bimmernut.com/~billr/images/pump1.jpg

[jplacson]

When I forst got my 520i, it had the same grinding sound... then one day, the thing just broke (the drive shaft snapped)... I just decided to get a new unit. Less problems, and one less system to worry about. Cost me $400. Not cheap, but with my 18" rims, I think a new pump was more necessary.

Yes, bleeding is needed after you change the pump.

[520Ichester]

Thanks for all your help , Can anyone tell me how to bleed the power steering on a M20, thanks

[Rob Edwards]

Bump, my steering is getting heavy despite having turkey-basted out the reservoir and replacing with fresh ATF 2-3 times. The bottom of the car, the rack, and the lines are all dry. I just went through this with my 928 and re-sealed the PS pump, it's easy to do, just wanted to see whether there are any gotchas on the E34 pump. Bill, might you have the images from the above post that are missing?

[Rob Edwards]

Looking at realoem for a '95 525iT, no ASC+T, no self leveling, it appears there's a vane pump gasket set 32411137707 for about $30. I'll call Patrick and get it and some banjo washers and see how it goes.

[shogun]

that is also interesting for me, I cannot get any repair kit in Japan for the power steering pump.

So far I heard that
Harry's steering can rebuild yours for about $150-$200
http://www.steeringgearrepair.com/1580033.html

As for E32 750:

For the ASC+T there seems to be no repair kit available on realoem, I checked for a 1992/12 750iL. The online shops such as Autohaus Arizona only sell reman kits. In our part of the world we cannot buy a set for repairing the steering box, safety regulations, no one will sell you a set, even if it might be available. Therefore I am looking for a set maybe from USA, so if someone knows, let me have the link.
Straight forward to repair the pump? Don't know yet, never done, but we will try.
Fugo from the German forum has done it
http://www.7-forum.com/forum/5/leckage-lenkgetriebe-stossdampfer-51377.html

You might have to register at
http://www.7-forum.com/ first to see or enlarge the pics.
But he does not live in Germany but in a former Eastern Europe country, that is maybe why he got the gaskets.
Engine has to be lifted and some steering parts have to come out, as far as I can see from the pics I posted before.
To change the pressure hoses is very easy or relatively easy. You just need a long extension. And do not tighten the banjo bolts too tight, they might break. Also replace the copper gaskets/rings.
I replaced them all, went to a shop for hydraulics and they cut off the crimp pieces and crimped new pressure hoses on it. Much cheaper than new hoses. But Autohaus Arizona also has good prices on these.
Here some pics
http://s71.photobucket.com/albums/i155/shogun_bucket/?action=view&current=CIMG4994.jpg
http://s71.photobucket.com/albums/i155/shogun_bucket/?action=view&current=pressure_hose_new_made.jpg


So if someone could tell me where I could get a repair kit for that one, thanks in advance
Autohaus price for a reman
http://www.autohausaz.com/search/product.aspx?sid=2exffsfdkpml2u45ws4ojp55&makeid=800003@BMW&modelid=1012936@750IL&year=1991&cid=26@Steering%20System&gid=7380@Power%20Steering%20Pump

I would need parts for sealing of this for a tandem pump, as I have LAD
http://www.realoem.com/bmw/partgrp.do?model=GC81&mospid=47354&hg=32&fg=15

[genphreak]

Hey everyone, try www.pskits.com (http://www.pskits.com-) - I got three, haven't had time to do it yet on any. The seals are $16 odd. Better than the stealer by about 1000% I expect. :) Nick

[shogun]

Thanks, link does not work, but I found it
http://www.pskits.com/
Unfortunately no repair kit for the 750 E32 power steering pump, all others they have :(

[genphreak]

Thanks, link does not work, but I found it
http://www.pskits.com/
Unfortunately no repair kit for the 750 E32 power steering pump, all others they have :(Thanks Erich... I don't know that those guys really know the differences. Are you sure that the references to Vickers or ZF type pumps cover the real differences? I bet the pumps changed a fair bit, but perhaps only for production purposes or to provide differing pressures (which I think is mostly done by adjusting the belt/pump position anyhow, so perhaps the e34 one will work? BTW, if you buy more than one, the freight costs barely any more. Great value sure, maybe its worth taking a look at this kit and see what is common to your pump!