Tony H.

Does someone know of a thread that tells the proceedure of removal of a 928 power steering pump?

Like what all has to come off the car to get it out, I want to rebuild my pump but it appears like the pump is very hard to get at., I just did the timing belt and water pump job and now this happens it would have been nice to know then, but things happen.

If someone can help me by telling me what all needs to be removed to get the pump out that would be great. Looks like I have to drain the radiator to get the alternator off because the top bolt is to long to let the alt drop out it hits the lower hose of the radiator, is that correct?

My pump started growling after I did the timing belt and water pump of course after I was done with the job and that job went really ok with everyones help here on this site.

Thanks so much but I am in need of your help again. Soon I will be a Porsche Machanic not a jeweler!!
Tony H.

Dean_Fuller

You just about have to remove the alternator to have access to the PS pump. The long bolt being removed will clear by just push the hose to the side...its not easy. There is 2 bolts that hold the alt on...or you could drop the bracket that holds the alt AN PS pump on the block which is what I do. its just 3 bolts...let the assembly rest on a floor jack. To reattach use the jack to hold the assembly up. To me this is the easiest.

Tony H.

Thanks that is a good idea, I will try that, I guess once the alt is out of the way then I can see how to remove the pump and hoses, I heard that a filter may be in the reservoir is that so on my 86? I see alot of wet around my pump area coming down and around the reservoir and hoses not real wet but messy wet. I am sure that is not normal but I am not sure what might be causing it either. maybe when I get it all off I can see a hose that is loose or leaking. I don't loose fluid in the reservoir at all.
Thanks Tony H.

Tony H.

You are right about the government statement even though it is a quote? But I think the right to bare arms can slow down the government taking some? If they feel you will fight most of time it is not worth their while when it is a grey area to begin with. But it is still the best place to live in my opinion.

Tomorrow is when I try to tackel this mess. I will update when done.

Thanks Tony H.

soontobered84

Once you get the alternator out of the way, It's like a 30 minute job to replace the power steering pump. You can actually see all the bolts and everything. It is truly amazing how easy it is once you remove the alternator

daveo90s4

Tony, this is how I did it... (RHD S4, but same approach I'd expect)

Cheers

Dave

Porsche 928 Power Steering Pump Removal and Reconditioning – 1990 S4 RHD

The following is a summary of how I went about removing, reconditioning and reinstalling the power steering pump on my 1990 Porsche 928 S4.

1. Purchase reconditioning kit. I bought mine from www.rennbay.com.
2. Download the ‘how to recondition the pump’ video from the same rennbay site, and review.
3. Purchase new Dextron III power steering fluid (about 1 litre max.).
4. Take note of radio station settings.
5. Disconnect battery.
6. Fit front bodywork protectors and syphon PS fluid out of reservoir.
7. Raise car on hoist.
8. Remove engine undertray
9. To remove alternator:
a. Slide the cool air intake hose off the alternator
b. Loosen alternator belt (13 mm lock nut and bolt)
c. Loosen main alternator bracket bolt (17 mm)
d. Swing alternator to loosen and remove belt
e. Hang belt away from the job, but so that it can be reinstalled in same direction of rotation
f. Remove the nut from the back of the alternator tensioning bracket (17 mm) and remove this, the bolt and the attached 13 mm bolt and lock nut.
g. Using a ratchet, start undoing the 17 mm alternator bolt. This can be done without removing the lower radiator hose.
h. If the fan shroud prevents this bolt from coming all the way out, you will need to slightly raise the fan shroud. To do this, remove the two bolts that hold the radiator and the fan shroud together at the top of the radiator, and gently raise the plastic shroud a little (1/2” / 10-15mm).
i. Have a helper ready to support the alternator, and a length of wire (coat hanger) to hand the alternator from the car so that it is not hanging from the electrical wires.
j. Keep undoing the 17mm bolt, remove it, gently lower alternator, reinstall bolt in the alternator, wind coat hanger wire around bolt and hang from underbody. Ensure electrical connector wires are not under tension.
10. You will now have access to the power steering pump.
11. To remove power steering pump:
a. Undo the two power steering line ‘banjo’ bolts. Be careful not to lose the two washers that go on each side of each banjo bolt (four washers in all). Use a funnel and container to catch any fluid that runs out of these hoses.
b. Loosen, but do not remove, the three 13mm bolts that hold the power steering pump to the power steering mounting bracket.
c. Release the belt tension by undoing the 13 mm lock nut on the tension fitting and undoing the tensioning bolt several turns.
d. Remove belt from power steering pulley (leave attached at crank end)
e. The power steering pump should now be quite loose
f. Reach up and unclip the power steering reservoir hose from the wire ‘fork’ that is mounted at the top of the PS pump
g. Now remove the bracket that the power steering pump is still (loosely) bolted to, by undoing one 17 mm bolts and two unequal length 13 mm bolts.
h. The power steering pump and mounting bracket can now be removed from the vehicle.
12. Undo the three already lose 13 mm bolts that hold the pump to the mounting bracket, and separate
13. Thoroughly clean the exterior of the pump and mounting bracket. Note which way the wire bracket is attached, and where.
14. To recondition the pump, follow the instructions on the Rennbay video.

Reinstalling is the reverse of the removal, with the following notes:

15. Attach the reconditioned pump to the mounting bracket before fitting the bracket to the engine, and temporarily gently tighten the three 13 mm bolts so that the pump is as close ‘in’ as possible
16. When lifting the attached pump and mounting bracket into position, slip the power steering belt over the power steering pump pulley as part of this fitting process – it can be very difficult to get the belt over the pulley after the power steering bracket is mounted
17. Also fit the power steering pump reservoir pipe into the wire bracket attached to the top of the power steering pump before tightening all mounting bolts
18. Once the power steering bracket is properly mounted and tightened, the power steering belt properly tensioned, and the power steering pump properly tightened to the mounting bracket tightened, make sure that the wire bracket that holds the power steering reservoir pipe in place is clear of the inner guard and that the hose is clear of the engine.
19. Check that all power steering related fittings are tight – very hard to do once the alternator is in place.
20. Tighten all nuts and bolts, making sure that power steering belt and alternator belt tensions are correct.
21. If previously unfastened, refasten fan shroud and turn fan blades by hand to ensure there is no interference.
22. Reconnect battery.
23. Add new Dextron III fluid to power steering reservoir.
24. To bleed air out of the system, start engine and gently move the steering from lock to lock. Do not use ‘hard lock’ until all air has been bled out of the system. When all air has been bled, there should be no bubbles or froth inside the power steering reservoir. And no ‘moaning noise’ either!
25. Check for leaks, top up reservoir.
26. Test drive, recheck for leaks.
27. Reset radio.
28. Refit engine under tray.

StratfordShark

I like Dean's idea of dropping the bracket - hadn't thought of that.

If you do remove the alt (I've always had to do that to access pump fittings) then make sure you use a clamp to squeeze the bushing back at the rear, otherwise it won't slide between the rear mounting tabs. Will be obvious once you have the alt off.

linderpat

Here is Sharkskin's full procedure to rebuild with pictures...http://members.rennlist.com/sharkski...26-PS-Pump.htm

the flyin' scotsman

Tony............couple of while your at its to consider:

replacement of the PS hoses, very easy to do with the PS pump and alt removed
flush the system with new fluid
clean up that side of the engine bay, if it is anything like mine was the PS fluid gets everywhere once it starts to leak.

Dwayne has a great write up in his garage.

Tony H.

Hello to all who replied and thanks to all as well.

Guess what I was messing around yesterday as I mentioned trying to get the alt off well I noticed my time was running short to complete it all that I knew I would have to do.

Well with that said I put it all back together again, and made sure all belts were tight, I started the car and noticed no more sound from the pump it was just as it was before I did my Timing belt water pump job, I then realized that I had mentioned that my P.S. pump belt was very very tight, WRONG!!. I was touching to the wrong belt I was touching the alt belt and it was like a piano string but I thought I was touching the P.S. belt which I found to be very very loose SO!! when I put it all back together again I made sure all belts were tight and now the problem has gone away and is just as it was before I did the other work (smooth and quite) and I knew the pump was fine I just had repalced it 3 months before the the timing belt job.

Now that was a mouth full but I hope I said it all correct the problem was a loose belt to my dis-may, You know this cars can make you and break you but with people like all of you out there it makes it all worth while.

Thanks so much for all of your continued help and support.
I sure will know how to take it out when I need to and I have the reseal kit for when it is needed. And I have studied the rennbay video as well.

I just wanted to say 2 things.
First and Formost to say thanks to all who responded and helped, and 2nd to Really Say Thanks so much.

Tony H.

Tony H.

To Daveo90s4,
What a great write up for the job I think I could do it in my sleep now that was great, special thanks to you that was really great of you, and every one else really helped as well. I sometimes don't look at the car hard enough before I start to tear it open I am almost getting use to ripping it apart I think it is part of owning one?

I can't say it enough Really Really Thanks.
Tony H.

uncre8tv

Reviving old thread to ask:

I took the alt/bracket/mount off first... and now I can't get any leverage on the banjo bolts! Anyone make the same mistake? Hope I don't have to partially re-assemble to get these off. Also - the smaller one seems to be 19mm (socket size) - how would you even get to that one if the bracket is in place? It seems hidden by a lot of other junk. The larger one is not 19mm and I don't have a full set of sockets after that, does anyone recall what size it needs?