[uucdigest] Thursday, April 3 2003 Volume 03 : Number 6275
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Send 'em to [EMAIL PROTECTED] |__________________________________________________________________ In this BMW UUC Digest: Re: [uuc] Potential Dex-Cool Class-Action Suit Re: [uuc] E36: questions about aux air pump and adjustable shocks RE: [uuc] High-pitched metallic whistling sound from rear end RE: [uuc] Re: Questions about adjustable shocks [uuc] RE: Pease column Re: [uuc] Potential Dex-Cool Class-Action Suit Re: [uuc] E36: questions about aux air pump and adjustable shocks [uuc] iX motor [uuc] <OT> Collisions ---------------------------------------------------------------------- Date: Thu, 3 Apr 2003 14:22:55 -0500 From: "mike" <[EMAIL PROTECTED]> Subject: Re: [uuc] Potential Dex-Cool Class-Action Suit But Alex, How would you feel buying a car, the maker TELLS you that is recommended to leave it for 100k miles. AND you know nothing about cars. I think that changes the point. It is FALSE advertising regardless of how good the product is if it DOESNT achieve the claimed. I am just waiting for a few more years to see how well the Lifetime fluid trannies etc hold up in BMWs. Wonder what lawsuit is going to challenge the meaning of Lifetime. You could put water in a trans and claim it is lifetime fluid, as the tranny will fail so its life is over, haha. Mike - ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: "UUC Digest" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, April 03, 2003 1:59 PM Subject: Re: [uuc] Potential Dex-Cool Class-Action Suit > "Brian Daley" <[EMAIL PROTECTED]> wrote: > > Considering the recent discussion of a possible link between coolant PH > > and plastic radiator neck failure I thought folks might be interested in > > > the following: > > http://www.bigclassaction.com/class_action/dexcool.html > > Brian, > I'm not sure what point you are trying to make. > DexCool is an excellent coolant. Sulfate and silicate free and with a low pH level of 8.3. > The coolant should be flushed every 2-3 years regardless of what some > sales/marketing monkey might be blabbering. > IMHO, anyone who believes that coolant should be left alone for 5+ years > and 100+K miles fully deserves what's coming. > > > Brian Daley > > 94 325ic (with Dex-Cool that's gonna get changed long before 100K miles) > > Same here. > > alex f > '95 M3 and '98 328i both filled with DexCool as well as a mixture of Mobil > 1 and RedLine lubes > ------------------------------ Date: Thu, 3 Apr 2003 13:21:13 -0600 From: [EMAIL PROTECTED] Subject: Re: [uuc] E36: questions about aux air pump and adjustable shocks "Scott Brown" <[EMAIL PROTECTED]> wrote: > Started my 1998 328i this AM and got quite a whining or cycling high > pitched noise coming from (what would seem) the glove box. After a > quick look under the hood it seems to be coming from the aux air just > on the other side of the firewall. All ventilation was off. The noise > started today and (only) did it twice when the car was cold. It also > went away after a restart after the car warmed up a little. Could this > have anything to do with my recent M3 factory muffler swap? Scott, My wife's '98 328i has also developed a similar 30-55 second high pitch whine. I believe the root cause is the silly air pump that dumps oxygen into the cat to fake the emission sensors into thinking that the car is not running rich during startup (which it does intentionally). A replacement pump is my to-do list, but since it is not a critical component, this project is presently on the back burner. It the worst case the pump will fail and you may get an emissions check engine light. Which will go away after the repair. > I am thinking of going to aftermarket shocks and was thinking about the > adjustable Konis. I don't think I want to lower my car much more than > it is now with the sport suspension. Are the Konis that easy to adjust > without tools or jacking up the car? Which ones, SA or DA? Front shocks are a snap to adjust since the upper shock mounts/camber plates are in the engine bay. For the same reason the rear ones are trickier to access/adjust. SAs are tricker yet since they need to be fully compressed to engage the adjustment mechanism. Most easily accomplished after the shock has been removed from the car. GroundControl RSMs make this a 5 minute/side exercise. > Are there notches in the adjustment wheel or is it free turning for > finer tuning? It's free turning on my SAs. > Any pros and/or cons dealing with these shocks (or others) would be > appreciated. DAs are better but significantly more expansive. So the cost might be considered a con. Front shock install requires gutting the OE strut housing (unless you buy new housings from www.ground-control.com). The only other popular aftermarket shock, Bilstein, requires gutting its own housing to cut the bump stops. Similarly painful and voids the warranty. > I plan on replacing the rear shock mounts with E46 ones while this > is done. Don't! Use GroundControl RSMs instead! > Any other items I should add to the work list if I go this route? > The car has 67K on the clock. I would throw in a set of aftermarket springs while everything is apart as well. tcklineracing.com sells sets of Konis with H&R OEM springs (roughly same height as stock E36M3's). Alternatively, but a set of someone's discarded E36M3 springs and enjoy a very compliant but competent suspension. > Also, do the front Konis's use the factory shock mounts Yes, you can reuse OE fixed camber plates. Or you could throw in adjustable ones (KMACs for a primarily street vehicle). > so I can continue to use my strut bar that currently uses the factory > mount bolt pattern? The bolt pattern is dictated by the strut tower holes. All aftermarket adjustable camber plates are designed to fit into those same holes. > What Koni resellers would you recommend? Shox are a commodity. Use anyone mentioned above or pick any reseller from www.bmwlinks.com alex f ------------------------------ Date: Thu, 3 Apr 2003 14:23:46 -0500 From: "Pharr, Jeff" <[EMAIL PROTECTED]> Subject: RE: [uuc] High-pitched metallic whistling sound from rear end A whistling sound from the rear end can also be caused by bad gas... - --Jeff P.S.: Is there enough fluid in the diff? Have you tried inviting a helper to ride in the trunk to verify the origin of the sound? "Joe Elwell" <[EMAIL PROTECTED]> wrote: > All, > My 95 M3 is giving off a very high-pitched whistling sound when moving. > It does not vary with speed. It does go away when I turn, and sometimes for > a while afterward. > This is a track car, original diff, 88k miles. I'm guessing limited slip. > Comments? > tia, > Joe Elwell ------------------------------ Date: Thu, 3 Apr 2003 13:33:34 -0600 From: [EMAIL PROTECTED] Subject: RE: [uuc] Re: Questions about adjustable shocks "Marco Romani" <[EMAIL PROTECTED]> wrote: > That was classic and sadly too true. > > BTDT BTDT and could not disagree MORE. Read comments within. alex f > > Neil Maller wrote: > > on 4/3/03 12:10 AM, "Scott Brown" <[EMAIL PROTECTED]> wrote: > > > > > I am thinking of going to aftermarket shocks and was thinking about > > > the adjustable Konis. I don't think I want to lower my car much > > > more than it is now with the sport suspension. Are the Konis that > > > easy to adjust without tools or jacking up the car? > > > > Bwahahaha! > > > > Oh, sorry. You've obviously never tried to adjust Koni SA rears. > > Whereas the fronts have a simple adjustment stem at the top, the rear > > adjuster is an internal dog clutch. > > > > Here's the exact procedure: > > 1) With the shock off the car, disassemble the RSM and remove the > > bump stop. With GroundControl RSMs, shock removal is a 3 minute process (including jacking up the rear). No need to remove the RSM. Just the unscrew the brace from inside the rear wheel well and take the shock out with the RSM still attached. If you had not cut the rear bump stop, it may be necessary to remove the center of the GC RSM to get the long bump stop out of the way. Quick zip-zip with 80 ft/# napOn portable impact gun (same one you use to swap the wheels) makes this a 15 second exercise. > 2) Brace the shock's eye against the floor and fully compress. > 3) Go to Emergency Room to have 10mm hole in your hand from pointed end > of shock shaft repaired. > 4) Once you get back, wipe blood off shock and reassemble RSM to use as > handle. > 5) Repeat step 2, this time avoiding severe bodily injury. Try fliping the shock upside down and pushing on the fat bottom cartridge. Makes steps 2-4 unnecesary. > 6) While maintaining about a zillion pounds of pressure to keep the > shock compressed against its internal gas pressure, rotate the shock's > shaft with respect to the body using a delicate touch, until you feel > the internal dog engage. (Previous experience as an OB-GYN helpful.) I don't remember it being that difficult. And I used to adjust them many times/autoX until the novelty wore off, I set them to 1/2 turn from full stiff (H&R stage 4 springs in the back) and left them alone. > 7) Keep the shock compressed, and rotate the shaft in your choice of > direction until the end stop is reached. Don't force. > 8) Back off the shaft to the desired angular setting. No, there are > no clicks. Why yes, you do still need to hold compression. Feeling > the strain yet? (Previous experience as a Sumo wrestler helpful.) It does take an effort to fully compress the shock to engage the adjustment mechanism, but my 190# frame was more then enough to induce full compression. Keep the shock compressed while turning was relatively easy. > 9) Release shock. Disassemble the RSM. Unnecesary. > 10) Reassemble the bump stop, washers and RSM, preferably with > everything in the correct order and orientation. Only if you took it apart in part 1. > 11) Reinstall shock on car. > 12) Repeat other side, optionally omitting step 3. > There, a simple 12 step program, isn't it? I had gotten the process down to a 5 step 5-10 minute per side process until I got bored with the adjustments and left them alone. The shock adjustment novelty took all of 2-4 months to wear off. alex f ------------------------------ Date: Thu, 3 Apr 2003 12:46:14 -0700 From: "KKiely" <[EMAIL PROTECTED]> Subject: [uuc] RE: Pease column If anyone out there is a Pease Porridge fan, there's his article in the 3/31 EDN is about an analog computer used to simulate car motion over a bump damped by shocks. - -Kevin ------------------------------ Date: Thu, 3 Apr 2003 14:41:41 -0500 From: "Gary Derian" <[EMAIL PROTECTED]> Subject: Re: [uuc] Potential Dex-Cool Class-Action Suit GM also has no specific brake fluid flush interval. Anecdotally, they discourage it on the basis that they expect their technicians to screw up something during the flush. After 10 years or so, the brake system needs everything replaced. Gary Derian > But Alex, > > How would you feel buying a car, the maker TELLS you that is recommended to > leave it for 100k miles. AND you know nothing about cars. > > I think that changes the point. It is FALSE advertising regardless of how > good the product is if it DOESNT achieve the claimed. > > I am just waiting for a few more years to see how well the Lifetime fluid > trannies etc hold up in BMWs. Wonder what lawsuit is going to challenge > the meaning of Lifetime. > > You could put water in a trans and claim it is lifetime fluid, as the tranny > will fail so its life is over, haha. > > Mike ------------------------------ Date: Thu, 3 Apr 2003 14:47:24 -0500 From: "Gary Derian" <[EMAIL PROTECTED]> Subject: Re: [uuc] E36: questions about aux air pump and adjustable shocks Fake the sensor? The air burns the rich mixture to clean the exhaust and heat the catalyst faster. Gary Derian > whine. I believe the root cause is the silly air pump that dumps oxygen > into the cat to fake the emission sensors into thinking that the car is > not running rich during startup (which it does intentionally). A > replacement pump is my to-do list, but since it is not a critical > component, this project is presently on the back burner. It the worst case ------------------------------ Date: Thu, 3 Apr 2003 11:50:49 -0800 (PST) From: Vince Leo <[EMAIL PROTECTED]> Subject: [uuc] iX motor - --0-1818392420-1049399449=:65755 Content-Type: text/plain; charset=us-ascii I have a friend on Rochester, NY that just had his iX rear-ended causing a boat load of damage. I think he wants to sell it. He just had the motor re-built (literally a few thousand miles) so if you need another motor, this may be the ticket??? I can get you his e-mail. Vince - --------------------------------- Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more - --0-1818392420-1049399449=:65755 Content-Type: text/html; charset=us-ascii <P>I have a friend on Rochester, NY that just had his iX rear-ended causing a boat load of damage. I think he wants to sell it. He just had the motor re-built (literally a few thousand miles) so if you need another motor, this may be the ticket??? <P>I can get you his e-mail. <P>Vince</P><p><br><hr size=1>Do you Yahoo!?<br> <a href="http://us.rd.yahoo.com/finance/mailsig/*http://tax.yahoo.com";>Yahoo! Tax Center</a> - File online, calculators, forms, and more - --0-1818392420-1049399449=:65755-- ------------------------------ Date: Thu, 3 Apr 2003 11:52:01 -0800 (PST) From: Neil Deshpande <[EMAIL PROTECTED]> Subject: [uuc] <OT> Collisions Sean: I was waiting for you to chime in with the physics background. My reference was to the three-body problem when the collision is simultaneous not having a solution in classical mechanics. I was under the impression that the solution for the two-body was known, but clearly I was mistaken. I was under the impression that the three-body was 'solved' by treating it as a two-body with a slight time stagger and taking two in turn and iterating. Similarly for gravitation problems. Another long-term misconception cleared up when I read further on it, I guess. Neil Deshpande - loves the amusing/scietific diversions/found Jay's post exceedingly amusing! *** Sean Cordone <[EMAIL PROTECTED]> Hah - I'm stunned this Frinkiac thread still has legs. In fact there's no unique solution to the general problem of an elastic collision in two dimensions - even for two bodies. Conserving energy and momentum gives you three equations, but there are four unknowns. - - --SC ------------------------------ End of [uucdigest] V3 #6275 *************************** | | In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. |________________________________________ | Please visit these UUC-approved BMW parts vendors/service providers: | (listed alphabetically) | | Autoscope-Motorsports - http://www.autoscope-motorsports.com | |==================================================== | | Koala MotorSport . BMW technical information, special tool sales/rental | http://www.koalamotorsport.com | |==================================================== | | Taylor BMW - http://www.taylorbmw.com - Doc Bimmer! | UUC Motorwerks . http://www.uucmotorwerks.com |__________________________________________
