[uucdigest] Monday, February 24 2003 Volume 03 : Number 6141
_________________________________________________________________ | | Search the ARCHIVES: | http://www.mail-archive.com/[EMAIL PROTECTED] | | Visit Richard Nott's Ultimate BMW Database: | http://www.bmwdatabase.com | | For all available Digest commands including unsubscribe/subscribe, | visit the BMW UUC Digest page: http://www.uucdigest.com | | Send SUBMISSIONS to [EMAIL PROTECTED] | Complaints? Send 'em to [EMAIL PROTECTED] if you must. | Technical Problems? Send 'em to [EMAIL PROTECTED] |__________________________________________________________________ In this BMW UUC Digest: Re: [uuc] <E30> 325i -- Idle/Surge gremlin HELP! Re: [uuc] Re: Homemade larger HFM tube RE: [uuc] E34 525iA steering- no worries mate! Re: [uuc] Re: Homemade larger HFM tube [uuc] Re: [uucdigest] V3 #6140 Re: [uuc] Re: Homemade larger HFM tube Re: [uuc] Re: Homemade larger HFM tube [uuc] Ceased Water pump. [uuc] 2nd try Ceased Water pump. (fwd) [uuc] <E30> 325i -- Idle/Surge gremlin HELP! [uuc] e36 M3 losing air ---------------------------------------------------------------------- Date: Mon, 24 Feb 2003 14:03:43 -0600 From: [EMAIL PROTECTED] Subject: Re: [uuc] <E30> 325i -- Idle/Surge gremlin HELP! Tom, Start by reading the check engine code: http://www.bonnevillemotorwerks.com/fault.html If that does not help, my favorite usual suspect is the ICV (idle control valve). - -- alex "Tom Newton" <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] 02/24/2003 09:54 AM Please respond to bmwuucdigest To: [EMAIL PROTECTED] cc: Subject: [uuc] <E30> 325i -- Idle/Surge gremlin HELP! Hi Folks - The other day something funky started happening with my wife's '89 325i. During all the snow we were getting on Long Island I had left the car idling in the street with the heat on while using the snow blower in the driveway for a few hours --- and later that day the car (which has 4 blizzaks on it) got extra heavy use (meaning I drove it hard in the snow, using the throttle liberally to keep from getting stuck in town etc...). Anyway, after racing the engine pretty good getting out of heavily mucked up (with snow) parking lot, the check engine light came on suddenly, and the idle of the car began to surge and subside, surge and subside, surge and subside etc... in approx 3/4 second increments between 1200 and 1600 rpms. The surging caused some bucking at the traffic light - I had to keep my foot mashed into the brake peddle pretty good to stay stopped. I should point out that while under acceleration the engine seems smooth, and both the oil and tranny fluid are at normal levels. As I gingerly continued on home, I checked if this condition existed in both drive (it's an autobox) and neutral/park, and indeed it did. With the engine light still on, I returned home, shut it down for the day and hoped whatever it was was because I had left the car idling so long and then beat on it so much. Sure enough, the next morning, no engine light, no idle surge - no problem. But later in the day, again after I raced the engine, the check engine light went on again, and the surge / subside started again. Fast forward to this morning - well unfortunately, as soon as I started it up the check engine light stayed on, but we had a train to catch, see we pressed on to the station. After about two minutes on the road sure enough the surging started to happen again. So that's where things stand now. One last thing I should mention is another common thread that has existed: Moisture -- because of all the slush & water I have been blasting through, its a good bet that moisture is happening under the hood. And this morning's engine light follows a wash down of the car last night just before the freezing temps came through again. Any ideas what might be wrong? Thanks in advance for any help. Tom Newton '98 M3/4 & '89 325i ------------------------------ Date: Mon, 24 Feb 2003 14:15:42 -0600 From: [EMAIL PROTECTED] Subject: Re: [uuc] Re: Homemade larger HFM tube "[EMAIL PROTECTED]" wrote: > hehehe, points for being inventive, but you realize that you did > absolutely nothing to gain power? Agreed. > the HFM is not a restriction, the throttle body is still smaller. > Why go to the euro HFM? Ahem, because it works as demonstrated and dynoed by both Conforti and Dinan. ;-) > The common idea is that it's for more flow, right? Only combined with more fuel flow => new chip. > bigger = better? Nope. The stock HFM flows plenty. Kit, would you care to substantiate your claim? > What the stock HFM lacks is the bandwidth to compensate for more mass > air flow through the sensor. ??? > the stock HFM peaks at around 300 crank horsepower, > obviously since the euro S50B32 came with 321 hp, the HFM has > some more bandwidth above that. Which one, Euro 3.5" or 2.5-3.2 liter US 3.0" one? alex f ------------------------------ Date: Mon, 24 Feb 2003 12:22:54 -0800 From: "KKiely" <[EMAIL PROTECTED]> Subject: RE: [uuc] E34 525iA steering- no worries mate! Roland, Having gone through a similar experience lately I can recommend from cheapest to most expensive the following tools for removing the ball joints: I'm talking here about the pivot type separator not the cup and screw type. JC Whitney - about $17 Performance Products - about $100 Mayhew - about $600. - -Kevin ------------------------------ Date: Mon, 24 Feb 2003 15:26:20 -0500 From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> Subject: Re: [uuc] Re: Homemade larger HFM tube > Ahem, because it works as demonstrated and dynoed by both Conforti and > Dinan. Combined with other mods, yes. A Euro HFM on an otherwise stock motor will not make power. > Kit, would you care to substantiate your claim? Yup. The throttle body is smaller than the HFM. just swapping to a Euro HFM by itself doesn't make power. (in and of itself) > What the stock HFM lacks is the bandwidth to compensate for more mass > air flow through the sensor. Ok, sorry, that was a really confusing statement. :D The stock HFM peaks at 4.99 volts which is about equal to the CFM you need to make 290 crank hp. Anything under that and you are fine with the stock HFM. > Which one, Euro 3.5" or 2.5-3.2 liter US 3.0" one? The euro HFM has some flexibility above 321 hp but maxes itself out at around 375-400 crank hp, which many of the forced induction guys are making. -kit - -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ . ------------------------------ Date: Mon, 24 Feb 2003 15:39:56 -0500 From: Richard Sperry <[EMAIL PROTECTED]> Subject: [uuc] Re: [uucdigest] V3 #6140 Why did you buy this car? there are plenty of others that have all the books wheels, codes, tools, no fault codes, .... ------------------------------ Date: Mon, 24 Feb 2003 14:45:55 -0600 From: [EMAIL PROTECTED] Subject: Re: [uuc] Re: Homemade larger HFM tube "[EMAIL PROTECTED]" wrote: > > Ahem, because it works as demonstrated and dynoed by both Conforti > > and Dinan. > > Combined with other mods, yes. A Euro HFM on an otherwise stock motor > will not make power. Aha, I'm with you on that. The issue is somewhat complicated by the fact that the larger diameter HFM is usually mated with a larger diameter aftermarket intake. The latter, when properly shielded, does add some power. > > Kit, would you care to substantiate your claim? > > Yup. The throttle body is smaller than the HFM. just swapping to a > Euro HFM by itself doesn't make power. (in and of itself) OK. I'm also a bit mystified why most euroHFM setups (with the exception of Dinan) do not include a larger throttle body. The traditional answer is that the larger TB introduces no appreciable power gain. I don't have the time and money to dispute that claim. > > Which one, Euro 3.5" or 2.5-3.2 liter US 3.0" one? > > The euro HFM has some flexibility above 321 hp but maxes itself out > at around 375-400 crank hp, which many of the forced induction guys > are making. Alas that limit is purely theoretical for us naturally aspirated guys ;-) alex f ------------------------------ Date: Mon, 24 Feb 2003 17:13:08 -0500 From: "James Moran" <[EMAIL PROTECTED]> Subject: Re: [uuc] Re: Homemade larger HFM tube - ----- Original Message ----- From: <[EMAIL PROTECTED]> > Ok, sorry, that was a really confusing statement. :D The stock HFM peaks > at 4.99 volts which is about equal to the CFM you need to make 290 crank > hp. You guys are missing one point here - the calibration. The Euro HFM also peaks at 5 volts, but obviously each volt is worth more CFM for the Euro HFM than for the stock one. Which is why you need specialized software with a Euro HFM conversion AND why a home-made one is a dangerous kluge. Also note that ignition timing relies on airflow parameters too. So, while a kluge with an adjustable fuel pressure regulator might get the fueling close, the ignition timing is being calculated on a lower voltage/airflow value than is reality. Jim Moran '88 M6 ------------------------------ Date: Mon, 24 Feb 2003 17:07:27 -0500 (EST) From: joseph <[EMAIL PROTECTED]> Subject: [uuc] Ceased Water pump. I got a E46 323, and this morning, while driving to work, my fan (one of) snapped... and as expect, the car needed to be stopped and towed. The alternator, (battery) light was the first to go on, and then, you notice no heat (in canada the stop of heater in a car is _very_ noticable) and the temp. guage shot up... I pulled over, and waited for a towing... The mech. said, water pump ceased, which let to a fan belt to break... and popped the other one off... Question, how common is this? Its setting me back a bit... as the car is 4 years old, with 90K (warrenty ends at 80K) Fustrating, ofcourse... I did notice something, like my heater was not effective in the last 24hours... I thought that might of had something to do with it? I'm trying to figure out if this could have been prevented... Kind of feel like an idiot, to be out on the side of the road... My reason for a bmw vs. american vechicle was to pervent this... all of its systems, accounted for nothing... Anyhow ever heard of faulty water pumps? for an E46... anything else I need to be aware of for an E46... ------------------------------ Date: Mon, 24 Feb 2003 17:10:44 -0500 (EST) From: joseph <[EMAIL PROTECTED]> Subject: [uuc] 2nd try Ceased Water pump. (fwd) emailed without rechecking... oppss. I have an E46 323, and this morning, while driving to work, my fan-belt (one of) snapped... and as expect, the car needed to be stopped and towed. The alternator, (battery) light was the first to go on, and then, you notice no heat (in canada the stop of a heater in a car is _very_ noticable) and the temp. guage shot up... I pulled over, and waited for a towing... The mech. said, water pump ceased, which led to a fan belt to break... and popped the other one off... Question, how common is this? Its setting me back a bit... as the car is 3.5 years old, with 90K (warrenty ends at 80K) thou, mainly highway Km. Fustrating, ofcourse... I did notice something, like my heater was not effective in the last 24hours... I thought that might of had something to do with it? I'm trying to figure out if this could have been prevented... Kind of feel like an idiot, to be out on the side of the road... My reason for a bmw vs. american vechicle was to prevent this... all of its systems, accounted for nothing... Anyhow ever heard of faulty water pumps? for an E46... anything else I need to be aware of for an E46... I'd like to be prepared... ------------------------------ Date: Mon, 24 Feb 2003 15:04:50 -0800 From: "Scott & Charlotte Miller" <[EMAIL PROTECTED]> Subject: [uuc] <E30> 325i -- Idle/Surge gremlin HELP! Tom, to find out why the check engine light came on, do the "stomp test", record the flash codes, and then look up the codes on Jim Conforti's web site. Stomp test - turn the ignition key to engine on but do not start the engine. Quickly, fully depress and release the gas pedal five times within five seconds. Flash codes - upon successfully stomping, the check engine light will begin to flash a series of digits. For example, flash pause flash flash flash pause flash flash pause flash would be 1321. The pattern will repeat, not sure how many times. Conforti's site: http://www.bonnevillemotorwerks.com/fault.html HTH, Scott Miller GGC BMW CCA >Date: Mon, 24 Feb 2003 10:54:56 -0500 >From: "Tom Newton" <[EMAIL PROTECTED]> >Subject: [uuc] <E30> 325i -- Idle/Surge gremlin HELP! > > Hi Folks - > >The other day something funky started happening with my wife's '89 325i. >During all the snow we were getting on Long Island I had left the car idling >in the street with the heat on while using the snow blower in the driveway >for a few hours --- and later that day the car (which has 4 blizzaks on it) >got extra heavy use (meaning I drove it hard in the snow, using the throttle >liberally to keep from getting stuck in town etc...). > >Anyway, after racing the engine pretty good getting out of heavily mucked up >(with snow) parking lot, the check engine light came on suddenly, and the >idle of the car began to surge and subside, surge and subside, surge and >subside etc... in approx 3/4 second increments between 1200 and 1600 rpms. >The surging caused some bucking at the traffic light - I had to keep my foot >mashed into the brake peddle pretty good to stay stopped. <snip> >Any ideas what might be wrong? Thanks in advance for any help. > >Tom Newton >'98 M3/4 & '89 325i ------------------------------ Date: Mon, 24 Feb 2003 18:30:22 -0500 From: Michael Stoneman <[EMAIL PROTECTED]> Subject: [uuc] e36 M3 losing air I have 3 BBS wheels for my e36 M3 with Michelin MXX3 Pilots 235/35/18 mounted that are leaking air around the beads, both front and back. The fourth is OK. The wheels/tires have been off the car for about 6 months and were fine before being taken off. Now that they are being put back in service they are leaking, losing 20 lbs + overnight. Anybody have a solution for making sure these wheels and tires don't leak? Thanks, Mike ------------------------------ End of [uucdigest] V3 #6141 *************************** | | 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 |__________________________________________
