The BMW UUC Digest Volume 2 : Issue 493 : "text" Format Messages in this Issue: Rumble/Vibration in 325ix Re: Rumble/Vibration in 325ix Re: <E36> Spark plug confusion Re: E30 325iX rumbles Re: E30 325iX rumbles Re: E30 325iX rumbles Re: E46 Tires Re: E46 Tires Re: E46 Tires e46 tires Re: e46 tires Re: E30 for SCCA Solo II Re: E46 wheels & tires: Re: E46 wheels & tires:
---------------------------------------------------------------------- Date: Thu, 13 Jan 2005 11:05:44 -0800 (PST) From: kjk <[EMAIL PROTECTED]> To: [email protected] Cc: [EMAIL PROTECTED] Subject: Rumble/Vibration in 325ix Message-ID: <[EMAIL PROTECTED]> Matt: I had a vibration in my M5 that was affected somewhat by throttle application. Turned out to be the center bearing on the driveshaft. Worth having a look--although yours sounds somewhat more severe. I thought it was all sorts of things before that. Kevin Kelly '91 M5 __________________________________ Do you Yahoo!? All your favorites on one personal page � Try My Yahoo! http://my.yahoo.com ------------------------------ Date: Thu, 13 Jan 2005 14:18:38 -0500 From: Matt Twigg <[EMAIL PROTECTED]> To: kjk <[EMAIL PROTECTED]> Cc: [email protected] Subject: Re: Rumble/Vibration in 325ix Message-ID: <[EMAIL PROTECTED]> Thanks Kevin, but as it is an iX there is no center bearing. Shoulda bought an M5...actually I am eyeing a couple E34M5s... -Matt On Thu, 13 Jan 2005 11:05:44 -0800 (PST), kjk <[EMAIL PROTECTED]> wrote: > Matt: > > I had a vibration in my M5 that was affected somewhat > by throttle application. Turned out to be the center > bearing on the driveshaft. Worth having a > look--although yours sounds somewhat more severe. I > thought it was all sorts of things before that. > > Kevin Kelly > '91 M5 > > > __________________________________ > Do you Yahoo!? > All your favorites on one personal page – Try My Yahoo! > http://my.yahoo.com > ------------------------------ Date: 13 Jan 2005 11:07:23 -0800 From: [EMAIL PROTECTED] To: [email protected] Cc: [EMAIL PROTECTED] Subject: Re: <E36> Spark plug confusion Message-ID: <[EMAIL PROTECTED]> > I don't know about Bosch part numbers, so you're on your own there. > I suppose if you get an NGK part number you can cross reference to > the equivalent. Bosch spark plug part numbers explained here: <http://www.boschusa.com/AutoParts/FAQs/SparkPlugs/> Scroll down about 2/3 to the "Click here for designation codes" link. Curt Ingraham 72 2002tii Oakland, CA ------------------------------ Date: Thu, 13 Jan 2005 13:22:12 -0600 From: Jenny Morgan <[EMAIL PROTECTED]> To: Matt Twigg <[EMAIL PROTECTED]> Cc: UUC Digest <[email protected]> Subject: Re: E30 325iX rumbles Message-ID: <[EMAIL PROTECTED]> You describe a classic rotational balance issue. Hve you removed the driveshaft and checked the rear u-Joint? When you do, note that it should feel perfectly smoth as you flex it through its range. And 'Nutch" in the middle can make for nasty rumble. Visually, you may not notice anything amiss, however, if you spot a light, very fine dusty powdery substance in the jint, Kiss it good bye and order a new shaft. Have you run the car on a lift and listened to the rear wheel bearings with a stethescope? The louder on a Left tells me you may have a bad RR bearing. Same bearing as a std e30 325 (late). But the 40-80 rumble may be an additional issue, or not. Jenny On Jan 13, 2005, at 12:32 PM, Matt Twigg wrote: > Hi Jenny, > > Sorry I forgot to mention that... > > It is a 5-speed. > > Thanks, > -Matt > > > On Thu, 13 Jan 2005 12:24:06 -0600, Jenny Morgan <[EMAIL PROTECTED]> > wrote: >> Is this an automatic or 5spd?? >> >> Jenny Morgan >> >> >> On Jan 13, 2005, at 12:06 PM, Matt Twigg wrote: >> >>> I have mentioned this here in the past and have replaced what I >>> thought was the problem....but it will not go away. >>> >>> My 1991 325iX (215k m) has a nasty rumble that starts @ 40 mph, fades >>> and then returns strong @ 60 mph. >>> At 80 mph it is rather annoying. >>> This happens regardless of which wheel set I am running ( have two ) >>> power on or off. >>> I have a recent alignment. >>> I have replaced the rotors (4). >>> I have replaced the subframe and trailing arm bushings. >>> I have replaced the guibos in the driveline. >>> All but the pass. rear halfshafts have been replaced. >>> This happened with my stock suspension and my lowered version. >>> >>> I am noticing now that on sustained 40-50mph left hand sweepers that >>> the right-hand rear rumbles louder. >>> >>> This is not a wheel bearing noise, at least as I know them, but I >>> could be totally wrong. >>> >>> Anyone have any insight? >>> This is driving me nuts.... >>> >>> >>> -Matt >>> 1991 325iX >>> Search the >>> ARCHIVES:http://www.mail-archive.com/[email protected] >>> >>> >>> _____________________________________________________________________ >>> __ >>> ___ >>> In memory of Michel Potheau - friend, enthusiast, founder of the BMW >>> CCA. >>> >>> UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate >>> Short Shifter - accept no substitutes! >>> 908-874-9092 . http://www.uucmotorwerks.com >> >> ------------------------------ Date: Thu, 13 Jan 2005 14:32:38 -0500 From: Matt Twigg <[EMAIL PROTECTED]> To: Jenny Morgan <[EMAIL PROTECTED]> Cc: UUC Digest <[email protected]> Subject: Re: E30 325iX rumbles Message-ID: <[EMAIL PROTECTED]> Hi Jenny, thanks a lot. I am now suspecting the driveshaft more than ever... I have never removed the shaft itself though I did collapse it to pull the transfer case for the guibos and shifter. I may put in a new shaft in any case this spring as it is original and very very o l d ... I do not unfortuantely have acces to a lift. All my work is done on jackstands in my gravel driveway ( ouch! ) -Matt On Thu, 13 Jan 2005 13:22:12 -0600, Jenny Morgan <[EMAIL PROTECTED]> wrote: > You describe a classic rotational balance issue. Hve you removed the > driveshaft and checked the rear u-Joint? When you do, note that it > should feel perfectly smoth as you flex it through its range. And > 'Nutch" in the middle can make for nasty rumble. Visually, you may not > notice anything amiss, however, if you spot a light, very fine dusty > powdery substance in the jint, Kiss it good bye and order a new shaft. > > Have you run the car on a lift and listened to the rear wheel bearings > with a stethescope? The louder on a Left tells me you may have a bad RR > bearing. Same bearing as a std e30 325 (late). > > But the 40-80 rumble may be an additional issue, or not. > > Jenny > > > On Jan 13, 2005, at 12:32 PM, Matt Twigg wrote: > > > Hi Jenny, > > > > Sorry I forgot to mention that... > > > > It is a 5-speed. > > > > Thanks, > > -Matt > > > > > > On Thu, 13 Jan 2005 12:24:06 -0600, Jenny Morgan <[EMAIL PROTECTED]> > > wrote: > >> Is this an automatic or 5spd?? > >> > >> Jenny Morgan > >> > >> > >> On Jan 13, 2005, at 12:06 PM, Matt Twigg wrote: > >> > >>> I have mentioned this here in the past and have replaced what I > >>> thought was the problem....but it will not go away. > >>> > >>> My 1991 325iX (215k m) has a nasty rumble that starts @ 40 mph, fades > >>> and then returns strong @ 60 mph. > >>> At 80 mph it is rather annoying. > >>> This happens regardless of which wheel set I am running ( have two ) > >>> power on or off. > >>> I have a recent alignment. > >>> I have replaced the rotors (4). > >>> I have replaced the subframe and trailing arm bushings. > >>> I have replaced the guibos in the driveline. > >>> All but the pass. rear halfshafts have been replaced. > >>> This happened with my stock suspension and my lowered version. > >>> > >>> I am noticing now that on sustained 40-50mph left hand sweepers that > >>> the right-hand rear rumbles louder. > >>> > >>> This is not a wheel bearing noise, at least as I know them, but I > >>> could be totally wrong. > >>> > >>> Anyone have any insight? > >>> This is driving me nuts.... > >>> > >>> > >>> -Matt > >>> 1991 325iX > >>> Search the > >>> ARCHIVES:http://www.mail-archive.com/[email protected] > >>> > >>> > >>> _____________________________________________________________________ > >>> __ > >>> ___ > >>> In memory of Michel Potheau - friend, enthusiast, founder of the BMW > >>> CCA. > >>> > >>> UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > >>> Short Shifter - accept no substitutes! > >>> 908-874-9092 . http://www.uucmotorwerks.com > >> > >> > > ------------------------------ Date: Thu, 13 Jan 2005 13:49:15 -0600 From: Jenny Morgan <[EMAIL PROTECTED]> To: Matt Twigg <[EMAIL PROTECTED]> Cc: UUC Digest <[email protected]> Subject: Re: E30 325iX rumbles Message-ID: <[EMAIL PROTECTED]> I DO NOT recommend running a car on stands... Get access to a lift.. AND ABSOLUTELY CRITICAL... NEVER RUN an iX with just 2 wheels moving... you will destroy the visco clutch in the transfer case within 30 sec. Never tow one on 2 wheels either. Jenny On Jan 13, 2005, at 1:32 PM, Matt Twigg wrote: > Hi Jenny, thanks a lot. > I am now suspecting the driveshaft more than ever... > I have never removed the shaft itself though I did collapse it to pull > the transfer case for the guibos and shifter. > > I may put in a new shaft in any case this spring as it is original and > very very o l d ... > > I do not unfortuantely have acces to a lift. > All my work is done on jackstands in my gravel driveway ( ouch! ) > > -Matt > > > On Thu, 13 Jan 2005 13:22:12 -0600, Jenny Morgan <[EMAIL PROTECTED]> > wrote: >> You describe a classic rotational balance issue. Hve you removed the >> driveshaft and checked the rear u-Joint? When you do, note that it >> should feel perfectly smoth as you flex it through its range. And >> 'Nutch" in the middle can make for nasty rumble. Visually, you may not >> notice anything amiss, however, if you spot a light, very fine dusty >> powdery substance in the jint, Kiss it good bye and order a new shaft. >> >> Have you run the car on a lift and listened to the rear wheel bearings >> with a stethescope? The louder on a Left tells me you may have a bad >> RR >> bearing. Same bearing as a std e30 325 (late). >> >> But the 40-80 rumble may be an additional issue, or not. >> >> Jenny >> >> >> On Jan 13, 2005, at 12:32 PM, Matt Twigg wrote: >> >>> Hi Jenny, >>> >>> Sorry I forgot to mention that... >>> >>> It is a 5-speed. >>> >>> Thanks, >>> -Matt >>> >>> >>> On Thu, 13 Jan 2005 12:24:06 -0600, Jenny Morgan <[EMAIL PROTECTED]> >>> wrote: >>>> Is this an automatic or 5spd?? >>>> >>>> Jenny Morgan >>>> >>>> >>>> On Jan 13, 2005, at 12:06 PM, Matt Twigg wrote: >>>> >>>>> I have mentioned this here in the past and have replaced what I >>>>> thought was the problem....but it will not go away. >>>>> >>>>> My 1991 325iX (215k m) has a nasty rumble that starts @ 40 mph, >>>>> fades >>>>> and then returns strong @ 60 mph. >>>>> At 80 mph it is rather annoying. >>>>> This happens regardless of which wheel set I am running ( have two >>>>> ) >>>>> power on or off. >>>>> I have a recent alignment. >>>>> I have replaced the rotors (4). >>>>> I have replaced the subframe and trailing arm bushings. >>>>> I have replaced the guibos in the driveline. >>>>> All but the pass. rear halfshafts have been replaced. >>>>> This happened with my stock suspension and my lowered version. >>>>> >>>>> I am noticing now that on sustained 40-50mph left hand sweepers >>>>> that >>>>> the right-hand rear rumbles louder. >>>>> >>>>> This is not a wheel bearing noise, at least as I know them, but I >>>>> could be totally wrong. >>>>> >>>>> Anyone have any insight? >>>>> This is driving me nuts.... >>>>> >>>>> >>>>> -Matt >>>>> 1991 325iX >>>>> Search the >>>>> ARCHIVES:http://www.mail-archive.com/[email protected] >>>>> >>>>> >>>>> ___________________________________________________________________ >>>>> __ >>>>> __ >>>>> ___ >>>>> In memory of Michel Potheau - friend, enthusiast, founder of the >>>>> BMW >>>>> CCA. >>>>> >>>>> UUC Motorwerks - BMW Performance Fine-tuning and home of the >>>>> Ultimate >>>>> Short Shifter - accept no substitutes! >>>>> 908-874-9092 . http://www.uucmotorwerks.com >>>> >>>> >> >> > Search the > ARCHIVES:http://www.mail-archive.com/[email protected] > > > _______________________________________________________________________ > ___ > In memory of Michel Potheau - friend, enthusiast, founder of the BMW > CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com > ------------------------------ Date: Thu, 13 Jan 2005 11:31:56 -0800 (PST) From: Andre Yew <[EMAIL PROTECTED]> To: [email protected] Subject: Re: E46 Tires Message-ID: <[EMAIL PROTECTED]> On Thu, 13 Jan 2005, Tom Kosmalski wrote: > I am looking to improve handling, turn-in, steering precision, etc. by > replacing the stock 16" tire/wheelset with a 17" version. I've only had them on my stock, sport-packaged E46 328Ci for a bit over 10K miles, but the Michelin Pilot Sport 2s (AKA PS2s) are by far my favorite tires that I've tried so far (including stock Contisports, Yokohama AVS Sports, and Bridgestone S-03s). This is going to sound really weird, but they feel like they were designed specifically for this car. Tire noise may be slightly higher in the beginning, but they haven't increased to ridiculous levels like some past tires (ie. the Yokohamas) with wear. There's no detectable tramlining, and the grip and control afforded at the track are excellent. --Andre ------------------------------ Date: Thu, 13 Jan 2005 11:43:21 -0800 (PST) From: Richard Dorffer <[EMAIL PROTECTED]> To: Andre Yew <[EMAIL PROTECTED]>, [email protected] Subject: Re: E46 Tires Message-ID: <[EMAIL PROTECTED]> --- Andre Yew <[EMAIL PROTECTED]> wrote: > On Thu, 13 Jan 2005, Tom Kosmalski wrote: > > I am looking to improve handling, turn-in, steering precision, etc. by > > replacing the stock 16" tire/wheelset with a 17" version. > > I've only had them on my stock, sport-packaged E46 328Ci for a bit over > 10K miles, but the Michelin Pilot Sport 2s (AKA PS2s) are by far my > favorite tires that I've tried so far (including stock Contisports, > Yokohama AVS Sports, and Bridgestone S-03s). This is going to sound really > weird, but they feel like they were designed specifically for this car. > Tire noise may be slightly higher in the beginning, but they haven't > increased to ridiculous levels like some past tires (ie. the Yokohamas) > with wear. There's no detectable tramlining, and the grip and control > afforded at the track are excellent. Yeah, but they really, really suck in the snow...I mean they are really, really, really bad. I know that is shocking, but it is true. Those large/wide grooves around the circumference and lack of siping simply don't work for snow traction... Oh, wait a minute, no one in their right mind would drive ~8 miles in a snow storm that had already laid down ~8" of snow to put their E36 M3 in storage shod with brand new PS2s taking over two hours and having to change their intended path two times due to the inability to move up the slightest of grades at traffic signals and using shingles laid down on the driveway to get some semblance of traction???!!!... :-) Otherwise, they are amazing in the dry/wet. Later, Rich '95 M3 - PS2s sitting in storage '90 325is - 712s sitting in storage '91 318is - Hakka Qs for winter use :-) ------------------------------ Date: Thu, 13 Jan 2005 20:35:18 +0000 From: "Gilbert Hoffman" <[EMAIL PROTECTED]> To: [email protected] Cc: [EMAIL PROTECTED] Subject: Re: E46 Tires Message-ID: <[EMAIL PROTECTED]> Tom pondered: >Not for track. It rains here quite a bit, but the car never comes out to >play in the snow. I like quiet tires. IMO the cheaper tires (Kuhmo specifically and less expensive Yokes) are going to intorduce more tire noise. Fact of life that when engineering less cost something has to be sacrificed. I haven't used any Michelins on my E46 328i but I am a big fan of their tires. I have a set of ES100 waiting to go on the E46 that haven't quite made it there yet so I cannot give advice about those. If your roads down in Oregon are anything like the Western Washington roads, I can tell you that you'll notice tramlining with the shorter sidewall 17"s and definitely if you choose a less expensive tire like the Kuhmos I have on my E46 now. (225/45-17 on stock wheels.) I'm pretty sure the Conti Sport Contact would be a handling improvement over the tires you have now, and they were pretty quiet for me when I had them on the car. I remember them being real nice in rain too. I didn't notice it on your post, I haven't gotten more than 25K miles out of any of my tires on the car. YMMV Gilbert ------------------------------ Date: Thu, 13 Jan 2005 14:49:23 -0500 From: Joel Gallun <[EMAIL PROTECTED]> To: [email protected] Subject: e46 tires Message-ID: <[EMAIL PROTECTED]> On Thu, 13 Jan 2005, Tom Kosmalski wrote: >> I am looking to improve handling, turn-in, steering precision, etc. by >> replacing the stock 16" tire/wheelset with a 17" version. any of the following should provide better performance than the tires that are on the car now: Michelin Pilot Sport BFG gforce KD Bridgestone S03 Toyo T1S Kumho MX listed roughly in order of price. Beyond that, tires are like religions. There's a lot to choose from, everyone thinks their favorite is the best and the rest lead to damnation. joel ------------------------------ Date: Thu, 13 Jan 2005 12:28:23 -0800 (PST) From: Andre Yew <[EMAIL PROTECTED]> To: [email protected] Subject: Re: e46 tires Message-ID: <[EMAIL PROTECTED]> On Thu, 13 Jan 2005, Joel Gallun wrote: > Toyo T1S You may want to wait for the T1R, which replaces the T1S, but apparently isn't yet available in the US. Here's the Canadian site: http://www.toyocanada.com/products/ProxesT1R.html I'm not sure what to make of the various features claimed for the tire, however. --Andre ------------------------------ Date: Thu, 13 Jan 2005 10:26:42 -1000 From: Jay G <[EMAIL PROTECTED]> To: [email protected] Subject: Re: E30 for SCCA Solo II Message-ID: <[EMAIL PROTECTED]> hi jim, IMHO r-compounds will give you the highest bang-for-buck ratio... :D ----- Original Message ----- From: "Jim Farris" <[EMAIL PROTECTED]> > Any other suggestions that will allow the car to stay in the stock class, > but give bang for the buck? ------------------------------ Date: Thu, 13 Jan 2005 12:56:46 -0800 From: "Polands" <[EMAIL PROTECTED]> To: <[email protected]> Subject: Re: E46 wheels & tires: Message-ID: <[EMAIL PROTECTED]> Tom, I've got a certified used 2001 330ci sport package. The original tires had been replaced with Dayton Daytona ZR (225/45-17front, 245/40-17rear). I've never heard of these tires before, but the width and low profile provide, to me, unbelievable cornering. I'm sure most other similar size tires would be stickier, but compared to my E28 535is, with the frickin TRX wheels, they are amazing. I think the sidewall height / sidewall stiffness may mean more in cornering than many other factors. I suspect the Daytonas would be cheap, and they are only noisy on new pavement. For the 535, when Michelin sold off the TRX 200/60-390 molds to Coker, who then didn't go into production with them, I had to switch to the remaining TRX 220/55-390 size. The amount of lean induced by the taller, bulgy-er sidewall prior to "set" was very noticeable. (go ahead and talk trash about my not pitching out the 390mm wheels, I just don't like the kid-racer look of almost all the aftermarket wheels. I'd switch to E39- 528sport or 540sport wheels in a flash, but can't justify the $2,000 to $2,400 that people want for them.) Steve Poland Portland, OR ------------------------------ Date: Thu, 13 Jan 2005 16:15:01 -0500 From: "Gary Derian" <[EMAIL PROTECTED]> To: "Polands" <[EMAIL PROTECTED]>, <[email protected]> Subject: Re: E46 wheels & tires: Message-ID: <[EMAIL PROTECTED]> The 220/55 is about the same height as a 200/60. Your big change was going from a Michelin built tire to a Coker built tire. There is a lot of engineering that is inside a tire and can't be seen. Gary Derian > Tom, > > I've got a certified used 2001 330ci sport package. The original tires > had been replaced with Dayton Daytona ZR (225/45-17front, 245/40-17rear). > I've never heard of these tires before, but the width and low profile > provide, to me, unbelievable cornering. I'm sure most other similar size > tires would be stickier, but compared to my E28 535is, with the frickin > TRX wheels, they are amazing. I think the sidewall height / sidewall > stiffness may mean more in cornering than many other factors. I suspect > the Daytonas would be cheap, and they are only noisy on new pavement. > > For the 535, when Michelin sold off the TRX 200/60-390 molds to Coker, who > then didn't go into production with them, I had to switch to the remaining > TRX 220/55-390 size. The amount of lean induced by the taller, bulgy-er > sidewall prior to "set" was very noticeable. > > (go ahead and talk trash about my not pitching out the 390mm wheels, I > just don't like the kid-racer look of almost all the aftermarket wheels. > I'd switch to E39- 528sport or 540sport wheels in a flash, but can't > justify the $2,000 to $2,400 that people want for them.) > > Steve Poland > Portland, OR > Search the ARCHIVES:http://www.mail-archive.com/[email protected] > > > __________________________________________________________________________ > In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com ------------------------------ End of [bmwuucdigest] digest(14 messages) **********
