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#1. New engine noise; diagnosing with stethoscope - from Skip Bogard
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Date: Mon, 24 Mar 2008 10:47:44 -0400 From: Skip Bogard <skip.bogard@alumni.duke.edu> Subject: New engine noise; diagnosing with stethoscope It's called an STEELMAN ChassisEAR. http://www.amazon.com/ChassisEar-Squeak-Rattle-Finder-Stethoscope/dp/B000IHIAES http://www.steelman-js.com/html/chassisear-engineearii_0.htm It has 6 or so microphones at the ends of small alligator clips. You get 6 long (about 14-16 ft wires) to run to your driver's seat and an electronic switch box/amplifier. You can switch between the six channels to figure out which microphone is picking up the noise. I own one...it's great. It allowed me to figure out if I had a bad rear wheel bearing or howling diff. The BMW tech said he didn't even hear it. I told him after I diagnosed it to replace both rear bearings (just replacing the bad one would have been fine though. He couldn't believe the groove that was worn; I couldn't believe he couldn't hear it! You can buy a ChassisEar stand-alone or as a kit with an EngineEar. I have both in the kit. There is a new thing called EngineEAR II (2). I don't have that. I don't know if you can get a ChassisEar with the new EngineEAR II - Skip Bogard
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#2. Re: New engine noise; diagnosing with stethoscope - from Matt Bader
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Date: Mon, 24 Mar 2008 10:53:07 -0400 From: Matt Bader <mbader@exammaster.com> Subject: Re: New engine noise; diagnosing with stethoscope Excellent info, Skip. Makes sense to have multiple microphones in order to "triangulate" where the noise is coming from. Matt Bader Skip Bogard wrote: > It's called an STEELMAN ChassisEAR. > > http://www.amazon.com/ChassisEar-Squeak-Rattle-Finder-Stethoscope/dp/B000IHIAES > > > http://www.steelman-js.com/html/chassisear-engineearii_0.htm > > It has 6 or so microphones at the ends of small alligator clips. You > get 6 long (about 14-16 ft wires) to run to your driver's seat and an > electronic switch box/amplifier. You can switch between the six > channels to figure out which microphone is picking up the noise. > > I own one...it's great. It allowed me to figure out if I had a bad > rear wheel bearing or howling diff. The BMW tech said he didn't > even hear it. I told him after I diagnosed it to replace both rear > bearings (just replacing the bad one would have been fine though. He > couldn't believe the groove that was worn; I couldn't believe he > couldn't hear it! > > You can buy a ChassisEar stand-alone or as a kit with an EngineEar. > I have both in the kit. There is a new thing called EngineEAR II > (2). I don't have that. I don't know if you can get a ChassisEar > with the new EngineEAR II > > - Skip Bogard > >
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#3. Re: [E36M3] New engine noise; diagnosing with stethoscope - from Azik [hotmail.com]
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Date: Mon, 24 Mar 2008 16:07:16 +0100 From: "Azik [hotmail.com]" <Azik@hotmail.com> Subject: Re: [E36M3] New engine noise; diagnosing with stethoscope I have exactly same one. Works good but it still takes time and lots of comparisons/checks before you find the exact spot where the sound is loudest. and the simptoms are RPM related or during driving you need someone's help as well. Still a great tool. Azar '97 528iA and '98 M3 Coupe (oOO \ (||||)(||||) / OOo) Celle, Germany ----- Original Message ----- From: "Mark D" <mdlkml@atari-source.org> To: "E36M3" <e36m3@bmw-m.net> Sent: Monday, March 24, 2008 3:22 PM Subject: Re: [E36M3] New engine noise; diagnosing with stethoscope > Date: Mon, 24 Mar 2008 10:19:12 -0400 > From: Mark D <mdlkml@atari-source.org> > Subject: Re: [E36M3] New engine noise; diagnosing with stethoscope > > Sure is: > > http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41966 > > Although it's an expensive one. Might break the bank :-P Though it is > from harborfreight so it might literally break the bank after you have to > replace it after each use due to it breaking. > > Thanks, > Mark > > > Bill and Jan Klemme wrote: >> Date: Mon, 24 Mar 2008 10:07:53 -0400 >> From: Bill and Jan Klemme <wklemme@gmail.com> >> Subject: Re: [E36M3] New engine noise; diagnosing with stethoscope >> >> There IS a device like that...not commonly found in stores but I used >> this technique several weeks ago when trying to figure out where a >> rumbling noise was coming from under the hood. I suspected water pump >> (don't know why...it's only got 90K miles on it!) but to nail it down I >> found a short piece of garden hose and put one end in my ear (how's that >> for a visual?) whilst probing around where all the moving stuff is. >> Resting the open end of the hose on the water pump made it very clear >> that it was in fact the source of the noise. (You have to actually touch >> the part. Being close isn't usually helpful.) It could have been the >> power steering pump or generator too but this is a pretty good way of >> pinpointing where noise is coming from. A stethoscope would be better >> because it transmits the sound to BOTH ears while blocking out extraneous >> noise. On the other hand a garden hose does have a bit of class... >> Regards, >> Bill K (one dirty ear) >> PS....don't let the hose touch any moving parts...especially the fan, and >> especially while the other end is on your ear. PPS... If you can't find a >> short piece of garden hose, it's easy to make one. >> >> Matt Bader wrote: >>> Date: Mon, 24 Mar 2008 06:17:20 -0400 >>> From: Matt Bader <mbader@exammaster.com> >>> Subject: Re: [E36M3] New engine noise; diagnosing with stethoscope >>> >>> Isn't there some sort of auto stethoscope that one can get to help >>> isolate sounds? I have a rattle in my right rear area (high up, not >>> suspension related ) that I thought I might be able to better diagnose >>> if I sat in the back seat with a stethoscope type device while someone >>> else drives the car, and I try to isolate the location of the rattle. >>> Perhaps that would be useful for engine issues, not sure. Is this a >>> crazy idea? >>> >>> Matt Bader >>> 98 M3/4 >>> Delaware > > > > ************************************************* > Please help support the E36M3 list by visiting our sponsors: > > Bimmerworld http://www.bimmerworld.com > Turner Motorsport http://www.turnermotorsport.com > Eurosport High Performance http://www.eurosporthighperformance.com > Rogue Engineering http://www.rogueengineering.com > Treehouse Racing http://www.treehouseracing.com > Elephant Motorsports Inc. http://www.elephantmotorsports.com > > DIGEST INFORMATION: > http://www.bmw-m.net/resources/digest_info.htm > ************************************************* > > >
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#4. Re: OT: BMW CCA - from Rich Dorffer
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Date: Mon, 24 Mar 2008 11:19:27 -0400 From: "Rich Dorffer" <E36M3Digest@gmail.com> Subject: Re: OT: BMW CCA From: "Robert Exconde" Does the US club have any affiliation with other clubs (ie, BMW Club of Canada)? Do they freely/willingly accept foreigners to their events and vice versa? We have a huge contingent of guys from Canada at Mid-Ohio every year (Raven Performance including John Dimoff and his group), Gerry Low, Rolf Lange, and a bunch of other great guys....heck, these are the guys that make driving schools that much more fun. They are great instructors, racers and students. Like any chapter, you must be a member of the local chapter (easy enough to sign up and pay some nominal fee) for tax purposes. Regards, Rich
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#5. Re: [E36M3] New engine noise; diagnosing with stethoscope - from bnmhead-bmw@yahoo.com
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Date: Mon, 24 Mar 2008 08:20:24 -0700 (PDT) From: <bnmhead-bmw@yahoo.com> Subject: Re: [E36M3] New engine noise; diagnosing with stethoscope I have a Steelman ChassisEar (http://www.steelman-js.com/html/chassisear-engineearii_0.htm) that's great for sounds that only can be heard when the car is moving. If any of the list members in Houston ever need it I'll loan it out. Seems to me that this sort of tool would be a good canidate for your local BMWCCA chapter to buy. Date: Mon, 24 Mar 2008 06:17:20 -0400 From: Matt Bader <mbader@exammaster.com> Subject: Re: [E36M3] New engine noise; diagnosing with stethoscope Isn't there some sort of auto stethoscope that one can get to help isolate sounds? I have a rattle in my right rear area (high up, not suspension related ) that I thought I might be able to better diagnose if I sat in the back seat with a stethoscope type device while someone else drives the car, and I try to isolate the location of the rattle. Perhaps that would be useful for engine issues, not sure. Is this a crazy idea? Matt Bader 98 M3/4 Delaware
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#6. RE: OT: BMW CCA - from Burgess, Kim L
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Date: Mon, 24 Mar 2008 08:28:39 -0700 From: "Burgess, Kim L" <kim.l.burgess@boeing.com> Subject: RE: OT: BMW CCA Here is Seattle we have had several people from the Vancouver attend our DE Clinics and DE track events. And we have gone to a couple of their events just north across the border. KLB -------------------- 4 -------------------- Date: Sun, 23 Mar 2008 23:20:02 -0500 From: "Robert Exconde" <99e36m3@exconde.com> Subject: OT: BMW CCA Does the US club have any affiliation with other clubs (ie, BMW Club of Canada)? Do they freely/willingly accept foreigners to their events and vice versa? Robert
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#7. RE: HP Calculation - from Burgess, Kim L
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Date: Mon, 24 Mar 2008 08:29:26 -0700 From: "Burgess, Kim L" <kim.l.burgess@boeing.com> Subject: RE: HP Calculation I'm going to step on a limb here - High pressure results in the highest numbers as there is less loss to hysteresis. KLB -------------------- 10 -------------------- Date: Sat, 22 Mar 2008 22:39:46 +0100 From: "Azik [Hotmail]" <azik@hotmail.com> Subject: Re: [E36M3] HP Calculation So which tyre pressure would yield more power? higher or lower? Azar, '97 528iA, '98 M3 3.2 Coupe (oOO\(||||)(||||)/OOo) /|OO|(||||)(||||)|OO|\ Celle, Germany
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#8. Re: [E36M3] HP Calculation - from Gus Iverson
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Date: Mon, 24 Mar 2008 08:57:13 -0700 From: "Gus Iverson" <gus.iverson@gmail.com> Subject: Re: [E36M3] HP Calculation This was actually related to an issue with the 99 Cobras, unless there were also issues with the earlier models. They were rated at 320 BHP from the factory, but were testing out much lower, 300 or less, based on dyno run analysis. They were indicating around 260 RWHP or lower. Mine came in at 262. My 2001 was actually borderline as well, coming in around 310. Ford provided the owners of the 99s with Dynaflow treated intakes and a couple other improvements which brought power more than back in line. Before you scoff, the 99 and 01 units were actually very nice track cars. Once you replaced the typical springs, dampers and bushings and welded the subframes together, the IRS + Tracklock made for a relatively tame rear end powering out of the corners. I chased down more than a few vettes, p-cars and yes, BMWs with that thing. Oh, and there's still video out there on the 'net of me passing Brad Witten's brand new Enzo at Pacific Raceways in it during the first break-in laps of that car, delivered the night before. Good times. I miss the power, but my 98 M3/4 is a much better car, no doubt. I still loved that old Cobra, though. On Sat, Mar 22, 2008 at 2:12 PM, Matt Bader <mbader@exammaster.com> wrote: > Date: Sat, 22 Mar 2008 17:05:39 -0400 From: Matt Bader Subject: Re: [E36M3] > HP Calculation > If it is the earlier Cobra you are talking about, I think mid-nineties, I > think it was originally rated at 240 hp wasn't it? At that time I believe > the Mustang GT was rated at 225 crank horse power but testing subsequently > revealed it was more like 200. > > Matt Bader > 98 M3/4 > Delaware > > Jack - Elephant Motorsports wrote: > > Date: Sat, 22 Mar 2008 16:21:23 -0400 > From: "Jack - Elephant Motorsports" > <jack@elephantmotorsports.com> > Subject: Re: [E36M3] HP Calculation > > Years > ago when I worked at Visteon we had a portable dyno...the same > as the ones > that are common now but back then they were not. Anyway, > we used it for > driveline NVH work but every so often we'd have > requests to do HP pulls for > various programs. We did some for the > Mustang guys when they were up against > the fence on their HP claims > for the Cobra. It was interesting to note how > even tire pressure > affected HP pulls. > > Jack Money >
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#9. Re: [E36M3] Re: OT: BMW CCA - from Carlos Lopez
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Date: Mon, 24 Mar 2008 12:29:00 -0400 From: "Carlos Lopez" <clopez98m3@gmail.com> Subject: Re: [E36M3] Re: OT: BMW CCA On 3/24/08, Rich Dorffer <E36M3Digest@gmail.com> wrote: > We have a huge contingent of guys from Canada at Mid-Ohio every year (Raven > Performance including John Dimoff and his group), Gerry Low, Rolf Lange, and > a bunch of other great guys....heck, these are the guys that make driving > schools that much more fun. They are great instructors, racers and > students. Agreed. We definitely have a great relationship with the Trillium chapter in this area. I always enjoy going to Mosport (the last two years) for the club race weekend. Awesome people. Cheers, Carlos 98 M3
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#10. Re: [E36M3] BMWCCA / CAN - from Marc Plante
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Date: Mon, 24 Mar 2008 12:34:34 -0400 From: "Marc Plante" <marcva@gmail.com> Subject: Re: [E36M3] BMWCCA / CAN I'm taking liberties based on your last name to ask...why would you want to come down and drive our tracks when you have St Jovite and Mosport in your backyard? I'm assuming you're in Quebec. Marc Plante (Has driven 11 hrs each way to St Jovite to DRIVE for 3 days). E36 M3/4/5 Vienna, VA