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02-18-2022, 08:33 PM | #67 |
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Thanks- didn't realize that was the case. The stock offset for an E8x is 52 in the rear, it's 37 for an E9x. 10mm spacer puts you within 5mm... figured that would be close enough for clearance. Have you seen where E9x wheels will interfere?
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taslaughtery22.50 |
02-18-2022, 08:34 PM | #68 | |
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03-11-2022, 08:11 PM | #69 |
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The "thunking" noise has been getting progressively worse. Initially, I was just hearing it when I was shifting, which made me think it was driveline related. But the noise was getting worse, and over time it started happening when hitting bumps or flexing the suspension. Thought I was saving money by using takeoffs from a friend's E93, but the noise was sounding more and more like a bad balljoint.
..and as long as I was doing it, might as well put M3 arms on there. FCP Euro had the full set to my door in 3 days. Out with the old... In with the new... These TRW's aren't OE parts... they're BMW parts with the roundel ground off. Getting her aligned tomorrow afternoon and we'll see if this did the trick. On the plus? side, I'm getting pretty good at taking control arms out. Had the whole job done in about an hour and a half. |
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03-16-2022, 07:45 AM | #70 |
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Quick update here...
1. The M3 control arms are a no-brainer. It really wakes the steering up. It's amazing that little bit of camber can change the handling so much. 2. The thunking/knocking is still there. It's primarily happening when I shift, but occasionally if the suspension is flexed or I hit an odd bump. It's really hard to run down, because it's not a pattern I can tell... hard/sharp bumps are fine, but it's occasionally what feels like a small bump will generate a knock. It sounds like it's coming from my right front wheel area, but control arms, springs, struts, strut mounts, and motor mounts are all new. Maybe I have a strut mount in incorrectly? Or perhaps it could be a transmission mount or CSB? I'm probably going to get an indy to help diagnose it rather than throw parts at it further. |
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djacinto426.00 |
03-16-2022, 09:39 AM | #71 |
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I've done suspensions on a bunch of cars but funny enough not our 1's. So this suggestion might not make any sense...
I had a persistent knock on an Eclipse that turned out to be the nut on the top of the strut shaft. I'd tightened it down, but - it wasn't threaded far enough from the factory. So where it met torque specs, it wasn't "tight" exactly as far as holding it to the car. It simply was that the nut had bottomed out on the threads that were available to it. Maybe there's a nut or bolt a little loose somewhere? Something that seems good but actually isn't? I wonder if there's a way to find loose parts - maybe whack stuff with a plastic mallet and see if they move? |
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03-16-2022, 10:11 AM | #72 | |
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Drives: G12 750Li
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Working with the vcg on my car and I realized in the morning I almost forgot to put the secondary air pump thing back on. It was there, just with no bolts holding it down! But to apex's credit, he's absolutely locking this thing down. I hope it is something that simple but whatever it may be, I'm sure he'll find it. For our sake when it's our turn!
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apexwerks94.50 |
03-16-2022, 10:52 AM | #73 | |
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apexwerks94.50 |
03-16-2022, 01:47 PM | #74 | |
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Ideas I'm kicking around.... 1. I got a bad motor mount? They're both new Beck/Arnley mounts, but it's not impossible that I could have gotten a bad one new out of the box. 2. Transmission mounts? Maybe by putting in new motor mounts and new diff/rear subframe bushings, I've exposed bad tranny mounts that weren't noticeable before. |
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amg6975578.00 |
03-16-2022, 05:10 PM | #76 |
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I'll double check them the next time the car is in the air. I don't get any noise loading/unloading the driveline with the clutch engaged, though. In first, clutch engaged, I can aggressively accelerate/decelerate and the driveline is silent. It's only on clutch in/clutch out and the odd bump. I'd think a bad guibo or CSB would make noise under load regardless of clutch position, but I'm totally open to the idea!
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03-17-2022, 07:04 AM | #77 | |
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I developed the habit during my racing days of using blue Loctite, torque to spec, and torque stripe on every suspension bolt. It makes pre-track inspections and visual checks quick and easy. I'm a fan of this for torque stripping as it creates a bead of paint that is very easy to tell when the bolt moves. https://www.amazon.com/DYKEM-Cross-C...1HC3QIGM/?th=1 |
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apexwerks94.50 |
03-17-2022, 01:50 PM | #78 | |
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I've torqued and re-torqued so many things... your advice sounds wise. I need to do a guibo on the M3 this weekend, and then the E82 will be back up in the air and I'm checking/torquing everything again front to back. I might go ahead and do tranny mounts.... |
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03-17-2022, 10:04 PM | #79 | |
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03-18-2022, 07:21 AM | #80 |
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Just cost. The original intent was to keep this super low cost, but that's obviously not happening. I will eventually put an LSD in the car, and by doing the 3.73 swap I have my original pumpkin sitting in my garage ready to be sent off to Diffsonline.
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03-25-2022, 05:52 AM | #82 | |
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Short version: I seem to have had TWO different, but similar, noises. One is driveline and undiagnosed as of yet, but the other was a bad right strut mount. Long version: I've been driving the car more regularly, and realized that the two noises were slightly different, and the noise on clutch engage/disengage was consistent but the noise on off-camber bumps was getting steadily worse. You could also start feeling something in the steering wheel when making sharp turns... it started sounding/feeling just like a strut mount gone bad. Used a ratchet strap to suspend the strut so I could replace the mount without actually removing the strut from the knuckle. The suspension sound is gone. The clutch in/out noise is still there, but I don't see anything obviously wrong with the driveline. I'm thinking it's just the new subframe/diff bushings transmitting the clutch noise to the cabin, and nothing to worry about. Either way I'm going to put a few more thousand miles on it and if it doesn't change, not worry about it. Really appreciate all the suggestions and help here... this is a really good community! Last edited by apexwerks; 03-25-2022 at 10:11 AM.. |
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tracer bullet3438.00 |
04-25-2022, 07:27 PM | #83 |
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Quick update... it appears I have several different driveline noises. Most of them appear to be made much more noticeable by the diff/subframe bushings. The clutch in/out noise has been increasing, and I was able to get it up in the air today. Checked the driveline by moving the driveshaft back and forth and using a stethoscope, and the noise seemed to be coming from the rear end. Swapped the old diff back in, and 90% of the noise is gone.
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04-26-2022, 09:09 AM | #85 | |
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For now, I'm mostly just trying to get everything buttoned up... I have a new project starting in a couple of weeks and need to have this car as a sorted daily for at least a few months. Lessons learned from this experience.... I would not do the 95A subframe and diff bushings again. I was prepared for noise and vibration, figured I'd get more gear whine transmitted to the cabin. I did not think that every bit of driveline lash would be amplified... especially on a car with 120k miles on it, there's a lot of lash and thunking that is concealed by compliant bushings. Stiff springs + stiff bushings means every little noise gets to the cabin. Not such a big deal with a newer car, but 12 years and 120k miles means there's lots of noises to hear. |
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01-12-2023, 03:51 PM | #86 |
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Super excited to say that this car is now sitting in my driveway in Massachusetts but unfortunately, I didn't get to purchase it right from Apexwerks.
I bought it sight-unseen from some corner lot in NC. I had a PPI done at Euromotion in Cary and they were enthusiastic. So, to continue the car's story some info from the Carfax: 5/20/2022: Premier One Automotive (117,751) -Clutch, flywheel, master, and slave cylinder replaced -Transmission mount(s) replaced 6/02/2022: Johnson Lexus -vehicle serviced (117,999) 6/14/2022: Johnson Lexus -Rear differential replaced. 6/25/2022: Johnson Lexus -vehicle serviced (117,999) 12/16/2022: Johnson Lexus -vehicle sold at auction FWIW, the only clunk I heard so far was resolved by removing two loose trunk struts that were banging around in the battery compartment. apexwerks , did you trade it into the Lexus dealer or do you work there? |
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tracer bullet3438.00 |
01-15-2023, 09:50 AM | #87 | |
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Drives: 2010 328ix E91, 2011 128i E82
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Unfortunately, he hasn't posted anything in over six months and stopped just before this car was, apparently, traded in to the Lexus dealer. Which is odd, considering it sounded as though he was planning to keep this car for a while. Ah well, circumstances and situations change, sometimes suddenly, so . . . something happened. But, yeah, great that you have such detailed build information. These are such fun cars to drive - I drive mine so much that my wife says it has usurped my C5 Corvette in my heart and that my E91 DD is not really needed. I say there is room in every car guy's heart for more cars. Enjoy yours!
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djacinto426.00 |
01-15-2023, 02:51 PM | #88 |
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I found him over on an off roading forum (ih8mud.com).
I'd love to get in touch with him for a debrief but don't want to be too creepy in my online stalking. It looks like he's knee deep in another project and also owns a new lexus, as well as his M3. It looks like either he traded it in then Lexus decided to replace the clutch, transmission mounts, and diff, or he traded it in because it needed a clutch. But I feel like if he needed a clutch, he had the know how to do it himself so I guess the latter? Regardless, he sold it right after his last post here but he's definitely alive and well. If anyone knows him personally, send me a PM. |
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