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#1. Re: [E36M3] Re: Engine Over-Rev woes... - from Bill Lackey
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Date: Sat, 17 Feb 2001 16:14:38 -0800 From: "Bill Lackey" <btlackey@hotmail.com> Subject: Re: [E36M3] Re: Engine Over-Rev woes... Jim, There is always difference in compression and leakdown when cold and when hot. Hot is always higher, from the experience I've had. It shouldn't be huge differences, but a few psi and percentage points always. Seems the rings seal better when they warm up and expand. Bill Lackey From: Jim Powell <jsp98m3@apexcone.com> Reply-To: Jim Powell <jsp98m3@apexcone.com> To: E36M3 <e36m3@bmw-m.net> Subject: Re: [E36M3] Re: Engine Over-Rev woes... Date: Sat, 17 Feb 2001 16:37:33 -0600 Date: Sat, 17 Feb 2001 14:30:53 -0800 From: Jim Powell <jsp98m3@apexcone.com> Subject: Re: [E36M3] Re: Engine Over-Rev woes... In some cases the compression test isn't going to catch anything. Its a good test to do but here's my suggestion. Compression test cold and hot. Any differences? Leakdown test cold and hot. Any differences? Of course badly bent valves (usually the exhaust side) will let air (use a compressor and the compression tester) whistle out the tailpipe. Jim Steven Hazard wrote: > Hope this makes you feel better..... > If you want to make sure get a compression test done....I doubt anything is > wrong.... ************************************************************* List Commands UNSUBSCRIBE - (in subject line) unsubscribes you from the mailing list. DIR - sends a listing of files available in the list's GET directory. GET filename1.ext,filename2.ext - sends the requested file(s). To issue a command/request to the server: Send a message with the command you wish executed as the subject of the message. ************************************************************* _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com
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#2. Re: [E36M3] lug bolt torque specs - from jay
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Date: Sat, 17 Feb 2001 14:28:02 -1000 From: jay <jguzman@hawaii.edu> Subject: Re: [E36M3] lug bolt torque specs make sure you dont need any hubcentric rings for those rims...if your rims dont "sit" tightly on the hub, you need hubcentric spacers...ask me how i know... Shelhart2@aol.com wrote: > i put a set of aftermarket momo sport rims on and can't get that fine > vibration out. i had the hunter balancer on it and they are balanced. i > thought that 80 ft lbs of torque was the max on the stock contour rims. I > can't find the lug torque specs in the bentley manual and thought that if i > torqued them down a bit more (80-85 ft lbs) i could eliminate the slight > vibration. any suggestions? > > shel hart > 98 m3/2 techno violet
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#3. Re: [E36M3] Re: Engine Over-Rev woes... - from Jim Powell
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Date: Sat, 17 Feb 2001 16:29:30 -0800 From: Jim Powell <jsp98m3@apexcone.com> Subject: Re: [E36M3] Re: Engine Over-Rev woes... Of course. But the spec for % leakdown over time is different. The valves being hot or cold may show up in one test but not the other. I forget to explain this to people who don't know. Mostly it's to insist that people ask for both tests to be run as long as they are going to pay to have it done. Jim Bill Lackey wrote: > Jim, > > There is always difference in compression and leakdown when cold and when > hot. Hot is always higher, from the experience I've had. It shouldn't be > huge differences, but a few psi and percentage points always. Seems the > rings seal better when they warm up and expand. > > Bill Lackey > > From: Jim Powell <jsp98m3@apexcone.com> > Reply-To: Jim Powell <jsp98m3@apexcone.com> > To: E36M3 <e36m3@bmw-m.net> > Subject: Re: [E36M3] Re: Engine Over-Rev woes... > Date: Sat, 17 Feb 2001 16:37:33 -0600 > > Date: Sat, 17 Feb 2001 14:30:53 -0800 > From: Jim Powell <jsp98m3@apexcone.com> > Subject: Re: [E36M3] Re: Engine Over-Rev woes... > > In some cases the compression test isn't going to catch anything. Its a > good > test to do but here's my suggestion. > > Compression test cold and hot. Any differences? > Leakdown test cold and hot. Any differences? > > Of course badly bent valves (usually the exhaust side) will let air (use a > compressor and the compression tester) whistle out the tailpipe. > > Jim > > Steven Hazard wrote: > > > Hope this makes you feel better..... > > If you want to make sure get a compression test done....I doubt anything > is > > wrong.... > > ************************************************************* > List Commands > UNSUBSCRIBE - (in subject line) unsubscribes you from the mailing list. > DIR - sends a listing of files available in the list's GET directory. > GET filename1.ext,filename2.ext - sends the requested file(s). > > To issue a command/request to the server: > Send a message with the command you wish executed as the > subject of the message. > ************************************************************* > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com
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#4. Re: [E36M3] Re: Engine Over-Rev woes... - from Jonathan Caldito
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Date: Sat, 17 Feb 2001 21:39:33 -0500 From: "Jonathan Caldito" <jonnym3@hotmail.com> Subject: Re: [E36M3] Re: Engine Over-Rev woes... You can't pull out over-rev rpms or faults from the instrument cluster. You probably got some instrument cluster serial or version number. Anyhow, I was a survivor of an over-rev. Here's the printout of a DME page from my '98 M3. Note that I over-revved the vehicle April of '98 and this printout was from Sept. of '00. "BMW Diagnosis Speed Memory Digital Motor Electronics DME MS41.2 M52B32 M3 US Chassis Number: WBSBG9322WEY78281 Note: The operating-hour counter runs starting from ignition-lock position 2 Maximum engine speed: 8160 rpm stored at: 1027 h 54 min" *end of print out* I performed compression and DIS smooth running tests and pass. I have not performed a leak down test but I made 250bhp and 14.161 in the 1/4mile bone stock. If anything, if your engine is running smooth at idle and no faults, then the engine survived the over-rev. (Maybe a small bent in the valve or a dent in the piston) Hey, you can always pull out the head to make sure. Jon Caldito BMW Technician _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com
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#5. ? on the SSR GT1 Wheels - from Cesar Omar
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Date: Sat, 17 Feb 2001 21:39:03 -0500 From: "Cesar Omar" <cesar@cfl.rr.com> Subject: ? on the SSR GT1 Wheels Does anyone knows about the SSR GT1 Wheels? 1. Looks of the wheels on the BMW M3 e36. If some one on this list has picture please e-mail me at cesar@cfl.rr.com 2. How good these wheels are? 3. STREE DRIVING THANKS! CESAR OMAR ORLANDO FL 1997 M3 COUPE
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#6. Garage cleaning time - from Jim Powell
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Date: Sat, 17 Feb 2001 21:37:25 -0800 From: Jim Powell <jsp98m3@apexcone.com> Subject: Garage cleaning time Michelins must go. Free! 2 each 255x40x17 SX Pilots. One is close to the wear bars but plenty useable. The other is close to brand new. You must come and get these in San Diego county. I hate shipping tires. No punctures, no patches, yada^3. Jim
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#7. Re: hold down the odom reset.... - from russell
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Date: Sat, 17 Feb 2001 21:42:59 -0800 (PST) From: russell <driver8m3@yahoo.com> Subject: Re: hold down the odom reset.... i'd never heard of doing that before so i tried it, since i had also once missed a shift and over-reved. seems a little strange that i got the same #-7504. is anyone sure of this procedure? russell 99 dakar ===== "one of the simple but overwhelming facts of our time is this: of all the millions of refugess we've seen in the modern world, their flight is always away from, not toward, the communist world"-rr __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
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#8. Re: [E36M3] Re: hold down the odom reset.... - from eugene han
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Date: Sat, 17 Feb 2001 23:53:49 -0600 From: "eugene han" <gene501@hotmail.com> Subject: Re: [E36M3] Re: hold down the odom reset.... It's becoming apparent that I have mistaken the diagnostic for a max rev keeper. It looks like I'm going to be making a trip to the dealer and to find out what the real value is. <sigh> Eugene Han ///M3 2dr Alpine White Over Revved. ----- Original Message ----- From: "russell" <driver8m3@yahoo.com> To: "E36M3" < > Sent: Saturday, February 17, 2001 11:47 PM Subject: [E36M3] Re: hold down the odom reset.... > Date: Sat, 17 Feb 2001 21:42:59 -0800 (PST) > From: russell <driver8m3@yahoo.com> > Subject: Re: hold down the odom reset.... > > i'd never heard of doing that before so i tried it, since i had also once > missed a shift and over-reved. seems a little strange that i got the same > #-7504. is anyone sure of this procedure? > > russell > 99 dakar > > ===== > "one of the simple but overwhelming facts of our time is this: of all the millions of refugess we've seen in the modern world, their flight is always away from, not toward, the communist world"-rr > > __________________________________________________ > Do You Yahoo!? > Get personalized email addresses from Yahoo! Mail - only $35 > a year! http://personal.mail.yahoo.com/ > > > ************************************************************* > List Commands > UNSUBSCRIBE - (in subject line) unsubscribes you from the mailing list. > DIR - sends a listing of files available in the list's GET directory. > GET filename1.ext,filename2.ext - sends the requested file(s). > > To issue a command/request to the server: > Send a message with the command you wish executed as the > subject of the message. > ************************************************************* > > >
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#9. Max Speed Math - from LoweSeaton@aol.com
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Date: Sun, 18 Feb 2001 02:56:15 EST From: LoweSeaton@aol.com Subject: Max Speed Math I wrote: > >RPM x (60 min / 1 hr) x rear wheel diameter (in) x Pi / rear end ratio / > >transmission ratio x (1 mile / 63360 in) = miles per hour > >For a 235/40-17 tire - diameter = 235 x 0.4 x 2 / 25.4 + 17 = 24.40 inches > >For a 245/40-17 tire - diameter = 24.72 inches > >For a 235/45-17 tire - diameter = 25.33 inches Ron writes: > Your formula for tire diameter yields a revs/mile of 911.xx > > According to Ron Katona, Tire Rack quotes the MXX3 in a 235/40ZR17 size as > 848 revs/mi > > Big difference! Ron - How did you get 911.xx revs/mile from my numbers? Revs per mile is determined by dividing 1 mile by the circumference of the tire. Correct? Note 1 mile = 63,360 inches Therefore, based upon my numbers above for diameters of tires, the revs/mile equal: 235/40-17 = 63360 / 24.4 / Pi = 827 revs/mile 245/40-17 = 63360 / 24.72 / Pi = 816 revs/mile 235/45-17 = 63360 / 25.33 / Pi = 796 revs/mile But you did give me an idea. I researched the Tire Rack and Toyo Tire web sites for revs/mile for several tires in the above sizes. My findings: Tire brand 235/40 245/40 235/45 SO2 PP 854 843 820 MXX3 848 Pilot Sport 849 841 822 BFG KD 841 P Zero 851 SP 9000 859 840 826 Toyo RA1 834 Average 852 841 825.5 Almost exactly 3% higher than my figures. I knew it!! I knew it was not reasonable to use the tire's circumference to figure MPH. Why? Because a tire is not perfectly round when it is loaded on the car. The bottom flattens out. I don't know the formula for a flat spotted circle. Circle = diameter x Pi. Thanks! Now I can make a more reasonable determination of my M3's top speed. I calculated a top speed of 172 MPH before. This is based upon a 7,200 rpm reading and Toyo 235/45-17 F1S R-compound tires. If we use Toyo's claimed revs/mile for the RA1 which probably matches my tires best we get: 172 MPH x 796 / 834 = 164 MPH Much more realistic. Lowell Seaton '95 M3 - only 164 mph Dallas, Texas
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#10. Where to buy wheel touchup paint? - from david tow
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Date: Sun, 18 Feb 2001 00:32:39 -0800 From: "david tow" <david_tow@hotmail.com> Subject: Where to buy wheel touchup paint? I am sure this question had been raised before, but I searched and could not find any solution for it. So please excuse me for asking this question again: I've got several small chips and nicks on my 95 M3's OEM wheels that I would like to touch up. The local BMW dealer claims that BMW does not carry wheel paint. Steve D'Gereolano commented in The Forum that he used Wurth silver wheel paint. Does this come in small touchup bottle I could buy from, say, my local Pep Boy? Does the paint match the wheel color exactly? Do you have a part number for it? Have some of you done the touchup work yourselves and were happy with the result? Any good tips? Since alloy won't rust, this is strictly cosmetic. Am I being fussy? Could the wheels turn out looking uglier after being touched up? Thanks for your help! David _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com