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BMW 3-Series (E90 E92) Forum
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H&R Springs Install DIY (finally)
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06-11-2006, 03:10 PM | #45 |
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ohh yeah i forgot one more thing. when we were tightening the bottom shock nut, my buddy did the right one and I torqed the left one and I think I might have overtightened it because as you can see the left side a little lower than the right. either that or the left spring has settled a little faster than the right. Anyone else had a similar problem? Minor adjustment no big deal.
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06-11-2006, 03:37 PM | #46 |
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[QUOTE=lni]
You're likely going to find that lining up the rear swingarm bolt, during reassembly, may be a PITA, as it was on E90boy's car. [QUOTE] Actually it wasn't that bad we just used the jack to raise/lower the swingarm until the holes aligned and slapped that bad boy in (with the help of hammer) |
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06-12-2006, 12:36 PM | #48 | |
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06-12-2006, 05:16 PM | #49 | |
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06-12-2006, 05:24 PM | #50 |
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hey lni, i'm not trying to be a smartass or anything but I just think you could eliminate messing with exhaust pipes and using spring compressors by just removing the outer bolt of the control arm instead of the inner. Just to give everyone else an idea, I copied this image to clarify what I'm talking about. The circled bolt/nut combo is the outer hardware of the control arm and the arrow is pointing to the bottom shock nut. Remove those but make sure you have a jack right under the control arm just like in the pic.
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06-13-2006, 09:24 AM | #51 |
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a_moux, I just finished my swap last night. I can confirm that removing the outer bolt does work on the rears. It definitly saves a lot of hassle.
The fronts were a bear to do, especially by myself. It probably took me close to 5 hours to do the fronts and about an hour to do the rears. I spent most of the time on the fronts just messing with the stupid ars spring-compressor that I own. The bolts to tighten the compressor were hard to get to once it was inside the front fender. Overall, a good DIY with a lot of good input from everyone! Last edited by voltron1011; 06-13-2006 at 10:21 AM.. |
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06-13-2006, 10:21 AM | #52 |
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*Update on test drive with ZSP springs*
All I have to say is, "WOW!" What an improvement over the stock suspension. The car feels much more planted and hunkered down. Also, the ride didn't change much at all. I'd say the ride is slightly firmer than non-ZSP. I remember test driving a few ZSP E90's before and the shocks are definitly firmer on them. Anyone who might be considering putting sport-springs on the Non-ZSP car, I would highly recomend it. |
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06-13-2006, 10:32 AM | #53 | |
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If you've been able to do that, God bless ya, but I'd need to see pics of it before I could believe it, since I've tried it twice already. |
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06-13-2006, 11:15 AM | #54 | |
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06-13-2006, 05:55 PM | #55 | |
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06-13-2006, 05:56 PM | #56 | |
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06-13-2006, 05:58 PM | #57 | |
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07-29-2006, 01:19 PM | #58 |
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Function of the offset flange and the vertical rod connecting the sway bar
Quote :You can now remove the inboard bolt that holds the lower swingarm on, with a 21mm socket wrench. Mark both washers and the bolt head with a sharpie so they can be aligned again when placing it back in (the bolt has an offset flange/washer on it). Once the bolt is loose, tap it out. I used a 1/4" drive socket extension. Once the bolt is removed, you can lower the jack slowly and remove the jack. You can now remove the spring. Take note of how the lower rubber spring seat sits in the control arm.[/QUOTE]
Hi, I want to ask question,from your diy instruction I quote above, a. Do you know the function of the offset flange/washer, it seems they adjust some position of the suspension geometry.What does it adjust ? b. also on step 3,I understand that you suggest to remove the upper end link bolt.When we finished with spring installed,and tighten back the bolt, I notice the vertical rod that connect it to the sway bar,can move around a little bit. (there is play).Is it ok or it should be stiff.because I might have not tighten the bolt enough then. Thank you |
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07-29-2006, 01:32 PM | #59 | ||
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The upper sway bar end link is designed to pivot, for front wheel steering and suspension position. If you have the bolt tight, upon resassembly, you should be ok. Remember that you need a wrench between the end link, and the mounting point, or the bolt will just spin forever. Good luck! |
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07-29-2006, 09:26 PM | #60 |
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Thank you so much for your reply,actually a shop where I buy my springs already installed it for me,It just that somehow,I did not 100%sure if they had done everything correct,so I jack up the car,when down under and check every suspension parts and bolts (and refering and following with your detailed quidance of course )That's when I notice that the left and right rear wheel offset wahser control is not in the same position.But since you already told me know it's function,I will just going to adjust it so it would be the same.
Thank you again for your kind guidance and great DIY post. |
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11-16-2006, 11:47 AM | #61 |
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Updated first post above with shorter instructions from longtran.
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01-09-2007, 07:05 PM | #62 |
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after you replaced the spring didnt you have to align the car because otherwise the alignment would be wacked out
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01-10-2007, 10:54 AM | #63 | |
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The only thing that sux is that only BMW shops can do the alignment. I took it to a couple of other shops in town and they all said they didn't have the right tool for one of the alignment parameters. So, I forked over $150.00 at Desert BMW. |
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01-12-2007, 01:04 AM | #64 |
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dang that sucks because im gonna install tein springs on my e90 325i and i was gonna let my friend do the alignment with one of the costco tire shops since i work at costco hmmm do u think they may have the tools?
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01-12-2007, 10:22 AM | #65 |
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It won't hurt to take it in and see if they can do it... I took mine to a local suspension shop and to Big-O tire and they both told me the same thing.... I called an independent BMW shop and they had the neccesary tools, however they were charging $140. Not much of a savings vs going to the dealer..
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