what's wrong with my PS? - Alfa Romeo Bulletin Board & Forums
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post #1 of 32 (permalink) Old 10-22-2003, 08:43 AM Thread Starter
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what's wrong with my PS?

hi all,

my power steering fluid keeps on overflowing. everytime i top it up to full and after a drive it will all flow out from the top, and drop below the minimum level again, causing a mess at the engine bay and undercarriage. anyone knows why?
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post #2 of 32 (permalink) Old 10-22-2003, 09:32 AM
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SSlim,

The internal seals of the pump is leaking. I think there are about 6 small round seals in the pump that needs replacement.
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post #3 of 32 (permalink) Old 10-22-2003, 09:35 AM
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Are you filling the reservoir when the fluid is hot or cold. If it's filled when cold, the normal expansion of the fluid when it warms up may cause it to overflow.

Jim

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post #4 of 32 (permalink) Old 10-22-2003, 12:54 PM
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If it is bubbling a lot, then it is definitely the internal seals.
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post #5 of 32 (permalink) Old 10-22-2003, 02:48 PM
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75evo is right. You have a pump that is leaking around the little o-rings. I fixed that by taking the pump apart. Here's an illustration:

When you take off the two bolts (see extreme left) that hold the pump together, it will split into two - minus the pulley, which is at the right hand side of the picture



The seals are located around the little holes on the radius of the pump body, as pictured below:



Those o-rings are unobtainable, usually, but if you were lucky enough to find a shop that could match them to something already on the shelf, you'd be in fat city. However, since I wasn't so lucky, I put gasket sealant between the two halves of the pump, making sure none of the holes are covered with the goop, and put it back together.

I now have a power steering pump that doesn't leak, and works just fine. Cost of repair, $3 (for a tube of gasket sealant) plus a bit of my time.

Nizam
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post #6 of 32 (permalink) Old 10-23-2003, 07:38 PM Thread Starter
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hi papajam,

it hapeens doesn't matter if i top up during cold or hot ...
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post #7 of 32 (permalink) Old 10-23-2003, 07:40 PM Thread Starter
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hi 75evo/nizam,

yes it is bubbling a lot, so i guess the pump gotta go under surgery soon. thanks for your info!
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post #8 of 32 (permalink) Old 10-23-2003, 07:41 PM
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OK. It was just a thought.

Jim

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post #9 of 32 (permalink) Old 05-26-2005, 01:30 PM
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Wow, this fix worked perfectly - no more mess. Thanks guys.

Just to add some info, I was able to get a big box of assorted metric o-rings at Harbor Freight for $9. They are round cross section instead of square but they worked fine to replace the six worn ones.

Tom

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post #10 of 32 (permalink) Old 05-26-2005, 09:38 PM
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what's wrong with my PS?

Hi,

Where is Harbor Frieght and what should I ask for(any part #'s) when I order those assorted metric "O" rings? Thanks in advance and have a great weekend.

Tim
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post #11 of 32 (permalink) Old 05-27-2005, 08:42 AM
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There's a bunch of them around here, or you can order online. Check their website for more info.

http://www.harborfreight.com/cpi/cta...emnumber=91512

Tom

1963 Giulia Spider (1750 engine)
1974 GTV
1991 Spider
Former: 1987 Milano Gold
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post #12 of 32 (permalink) Old 06-11-2005, 06:02 PM
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Quote:
Originally Posted by Gubi
They are round cross section instead of square but they worked fine to replace the six worn ones.
Oops...they worked fine for about two weeks. Then it started leaking again

Redid it today with gasket compound like nizam - we'll see how that holds up. So far so good.

Tom

1963 Giulia Spider (1750 engine)
1974 GTV
1991 Spider
Former: 1987 Milano Gold
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post #13 of 32 (permalink) Old 06-11-2005, 11:46 PM
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I had this problem and it was the rack not the pump.
I replaced the hoses and it keeps on leaking. if I looked in the tank the ATF would get fomed up then over flow. Then after geting a new(rebuilt) rack I have not had any overflows.

The rack was a pain to change but I wish I had changed it sooner. The overflowing ATF would find its way onto the hot cat and the car was smoking real bad all the time.
I have had the new rack for about 5 years so far with no problems.

1987 black Milano Verde, 1987 (made in 1986)blue $200 gold with ABS and LSD
1972 White spider 2000 Veloce
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post #14 of 32 (permalink) Old 06-12-2005, 04:29 AM
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One thing almost nobody checks when looking for O-rings is their compatibility with the fluid concerned. The results of this oversight can range from nuisance to dangerous. Make this check a necessary part of your O-ring search!
Jim K.
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post #15 of 32 (permalink) Old 06-12-2005, 10:12 AM
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Wow, this thread has been resurrected!

My "long term test" has spanned from Oct 2003 through June 2005. So far, no leaks out of my fix! My wife uses her Verde, up until recently, everyday (now she has the spankin' new Audi A3). No leaks out of her PS pump. It's nice not to find a puddle of PS fluid under the car, or boiling off the exhaust downpipes.

The PS racks are hit-or-miss. Mine never leaked (originali) but my wife's Verde had a leaky rack too so a rebuilt one fixed that particular leak. My $3 tube of gasket sealant fixed the PS pump and I just used fresh copper washers everytime I work on that system to ensure tightness.
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