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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 12-06-2014, 01:56 AM
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cmac2012 cmac2012 is offline
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Location: Berkeley, CA
 
Join Date: Nov 2005
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Mein Auto: 1987 325i, 410K
Power steering whine - fluid at top line on dipstick

Don't know what to make of this. It wasn't present when I did my test drive before maybe 30 miles on the odo ago.

One small issue, I popped into O'Reilly's to get a couple of V belts and didn't think to ask about quality. They brought me out a couple of Master Pros. The power steering belt didn't get quite as tight as I'd like before it hit the far end of its range. OTOH, I'm not getting belt squeal, I know the power steering noise too well.

Another telling sign, both tie-rod boots are in two pieces. Furthermore, no fluid on the driveway and I'm hard pressed to find of any by probing around the scene of the crime. A small dab perhaps.
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  #2  
Old 12-06-2014, 09:12 AM
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hornhospital hornhospital is offline
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Location: In the Grumpy Chair
 
Join Date: Jan 2008
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Mein Auto: 1995 318is / 1993 325is
Have you done a flush and refill of the PS system recently? You probably need to if it's been a couple years. Backflush the reservoir to clean the filter in the bottom, or replace the reservoir.
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  #3  
Old 12-06-2014, 11:43 AM
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cmac2012 cmac2012 is offline
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Location: Berkeley, CA
 
Join Date: Nov 2005
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Mein Auto: 1987 325i, 410K
Yeah, good advice, I'll suck the fluid out with my giant squeege bulb, take it out and clean the hell out of it. In addition, I guess the obvious handwriting on the wall is that this rack is old - boots broken - those boots are there for a reason. My last new/used rack I put on my first rig looked really good at the boneyard. Boots in exc. shape, no grease and dirt crusted on - my best guess was it was halfway new. It's been doing fine for about 30K.
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  #4  
Old 12-07-2014, 03:01 AM
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cmac2012 cmac2012 is offline
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Mein Auto: 1987 325i, 410K
Not encouraging. Took the reservoir out, unscrewed the filter and squirted copious WD40 on it as I turned it aroound inside. Some bits of dirt and debris but not much. Rinsed it all out a few times with ATF, can't imagine any tiny WD40 residue would hurt. I thought maybe I had found the problem - the clamp on the line to the pump, one of the original crimp type, had been compromised at some point and slipped off pretty easily. Could allow air into the pump every time it's being taxed. Replaced it, topped it off and it's still noisy, after bleeding that is. Topped it up again and took it for a drive. The noise is virtually not there at any engine speed. Only at idle does the pump do the moan/whine. While sitting still, if I rev it up around 2500+, there is no noise.
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Old 12-07-2014, 06:58 AM
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downhiller downhiller is offline
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its just an old pump. most do makes sounds when at idle because its under the most stress.
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  #6  
Old 12-07-2014, 12:07 PM
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cmac2012 cmac2012 is offline
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Mein Auto: 1987 325i, 410K
I think you're right. My first indication I had something going on was after I replaced the right side boot (before I realized they were both bad). I turned it lock to lock while on stands a couple of times for ease of access and to check the other boot. Put it down, started it up, checked the fluid and it was way foamy. Not sure why but I'm wondering if the loose hose has been letting air bubbles w/o losing much fluid for some time. Has perhaps taxed the pump. Pelican has a rebuild for $150. Nasty job like that, not sure I want to put in the labor for a boneyard pump.

OTOH, after some research, I'm finding mixed feelings about reman pumps. Pelican sells Atlantic Enterprises brand, found one bad review from a rival forum. Who knows though, no responses to it. Not sure I want to go the O'Reilly's route, their brand is MasterPro which gets some good reviews. Autozone has an Atlantic Automotive brand on their site, I read online that they carry Atsco brand. Mine is a ZF best I can tell, it has the multiple little ribs on the housing whereas the Vickers has only four.
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Last edited by cmac2012; 12-07-2014 at 01:35 PM.
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  #7  
Old 12-09-2014, 03:41 AM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
Join Date: Aug 2012
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Mein Auto: E23;E30;E38;E32;E34 +
I know it's a $ thing but the OEM ZF has just started to fail after 25 years. ZF is $ (no question) but lasts!!
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  #8  
Old 12-09-2014, 10:59 AM
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cmac2012 cmac2012 is offline
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Mein Auto: 1987 325i, 410K
The ZF rebuild is only about $100 more than the other rebuilds. My other thought is that the rack is compromised, though not yet leaking, and taxing the pump excessively. Would hate to buy a new pump and see it behave similarly. My first E30 is also an '87, has 400K plus, and the original pump is still a trooper. I guess it's possible that the pump in my current ride deteriorated from disuse. I think this car may have sat for a year or two before I got it.

Now and then I see a boneyard rig with a rack that looks much newer than the car. I'm going to look for such a thing in the next few days. I bought a rack for $40 something that came off a junked vert - the boots looked almost new. Not iron clad but boots that have been on for 200K tend to get caked with oil and dirt. Could be they were merely new boots - it's a gamble. At any rate, said rack has performed well.
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Last edited by cmac2012; 12-09-2014 at 11:03 AM.
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  #9  
Old 12-25-2014, 11:05 PM
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cmac2012 cmac2012 is offline
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Location: Berkeley, CA
 
Join Date: Nov 2005
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Mein Auto: 1987 325i, 410K
Victory is mine, at last. I finally discovered the rack leaking fluid, and quite a bit. I don't get it, I couldn't find any leakage at first. Oh well. I found an '86 325 with 117 on the odo at Pick n Pull, in good general shape, motor very clean, so I suspect it might be the original odo. The dust boots on the rack were intact - I cut the tie and slid them off the lower collar - no fluid in either boot. I put it on my car, still noisy. I got the pump off the same rig, a Zf, like mine, and I have peace and quiet at last. I can only guess they drove it overmuch with insufficient fluid on hand and beat the pump up in the process.

Full tilt rebuilds would have been a better way to go, but would have cost me around $500 more. I'm good with saving that expense for later. The rack was about $44 after tax, the pump $34.
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Last edited by cmac2012; 12-25-2014 at 11:09 PM.
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  #10  
Old Yesterday, 07:17 AM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
Join Date: Aug 2012
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Mein Auto: E23;E30;E38;E32;E34 +
Big win. Exlnt!!
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Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
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