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#1. Puzzled by Secondary Timing Chain - from McCarthy, Brian
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Date: Mon, 4 Feb 2002 12:30:32 -0800 From: "McCarthy, Brian" <Brian.McCarthy@intermec.com> Subject: Puzzled by Secondary Timing Chain I'm changing my upper timing chain tensioner - the one on the secondary chain between the exhaust and intake camshafts. I'm puzzled by some "adjustability" that's been designed into the system. The chain sprocket isn't indexed to the exhaust cam with a dowel like I've seen elsewhere. Usually the sprocket mates to the camshaft in one (and only one) position. Instead, the mounting bolts go through slots in the sprocket. This permits the sprocket-to-cam relationship to be adjusted. I'm confident the sprocket is in the right place, from a "course adjustment" standpoint. I'm not off by a tooth, in other words. However, the slotted sprocket and the slack in the secondary chain gives me adjustability that amounts to about 10% of a tooth. It's this "fine adjustment" that has me wondering.... The Bentley manual doesn't offer any guidance on this "fine adjustment'. It amounts to about 1.2 degrees adjustabilty at the camshaft, or 0.6 degrees if you consider valve timing from the crankshaft point of view. Maybe I shouldn't be concerned? Any opinions? Advice? Brian McCa rthy '76 2002 '95 M3, soon to have less noise on startup (hopefully!)
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#2. Re: [E36M3] e36 m3 cat shields - from Matt Henson
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Date: Mon, 4 Feb 2002 12:43:40 -0800 (PST) From: Matt Henson <hensonator@yahoo.com> Subject: Re: [E36M3] e36 m3 cat shields Maybe a stainless steel band that you can wrap around it shield/cat? Even a mild steel one would last a good year or so if it's reasonably thick. Maybe the stuff used in HVAC if you can get it in stainless. -Matt --- "kitwetzler@mindspring.com" <kitwetzler@mindspring.com> wrote: > Date: Mon, 4 Feb 2002 15:15:12 -0500 > From: "kitwetzler@mindspring.com" > <kitwetzler@mindspring.com> > Subject: e36 m3 cat shields > > > the @*#($*(@#$*@(#*$ cat shields broke loose on the > M3 again. I screwed in another screw to hold it > tightly, but this is a pretty temporary fix. > > Anyone have suggestions on repairing this? Doesn't > look like an easy welding fix, or I would've done > that already. Anyone have a Supersprint center > resonator for sale? :) I can probably stand to > replace them, they have a few dents and dings... > > -kit > > -------------------------------------------------------------------- > mail2web - Check your email from the web at > http://mail2web.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 to the email address > e36m3@bmw-m.net. > ************************************************************* > > __________________________________________________ Do You Yahoo!? Great stuff seeking new owners in Yahoo! Auctions! http://auctions.yahoo.com
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#3. Re: Cupping of tire - from Seth Frader-Thompson
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Date: Mon, 4 Feb 2002 13:55:45 -0700 (MST) From: Seth Frader-Thompson <fraderth@colorado.edu> Subject: Re: Cupping of tire The same thing happened to the RE730s on my girlfriend's Saab 900. Something about the rear alignment on the turbo cars - when I rotated the tires to the front, the droning was incredible. It was so bad that at first we thought several wheel bearings must have catastrophically failed at once. After trying to live with it for a few days, she sent them back to the Tire Rack (prorated) and got four new Kumhos. No problems since. Seth
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#4. Race seat - from James Clay
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Date: Mon, 4 Feb 2002 16:00:32 -0500 From: "James Clay" <james@bimmerworld.com> Subject: Race seat No issues with the airbag system. We often put the stock seatbelt receiver back in the car - that is the only wire that would be a problem for the dash lights (seatbelt). You can remove the bulb in the rear of the cluster if it gets annoying. James ----------------------------------------------------------- James Clay http://www.bimmerworld.com Engineered BMW Performance BMWCCA/SCCA Racecar Rental Genuine OEM and Used BMW Parts (540) 639-9648 -----------------------------------------------------------
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#5. Re: [E36M3] Puzzled by Secondary Timing Chain - from NickG
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Date: Mon, 4 Feb 2002 15:07:12 -0500 From: "NickG" <nikog@mediaone.net> Subject: Re: [E36M3] Puzzled by Secondary Timing Chain Brian, The purpose of the slotted mounting holes in the cam sprocket is to allow the VANOS unit to be adjusted. The position of the drive sprocket (on the exhaust cam) changes the position of the driven sprocket (on the intake cam) with respect to the VANOS unit. The exhaust sprocket has to be installed in a position that gives the VANOS unit the proper amount of travel (thus advancing the intake cam the proper amount). The intake cam travel is measured from the chain tensioner to the cam sensor on the camshaft. The spec is a travel distance of 8.5mm minimum when the VANOS unit is activated. Nick > Date: Mon, 4 Feb 2002 12:30:32 -0800 > From: "McCarthy, Brian" <Brian.McCarthy@intermec.com> > Subject: Puzzled by Secondary Timing Chain > > I'm changing my upper timing chain tensioner - the one on the secondary > chain between the exhaust and intake camshafts. I'm puzzled by some > "adjustability" that's been designed into the system. > > The chain sprocket isn't indexed to the exhaust cam with a dowel like I've > seen elsewhere. Usually the sprocket mates to the camshaft in one (and only > one) position. Instead, the mounting bolts go through slots in the > sprocket. This permits the sprocket-to-cam relationship to be adjusted. > > I'm confident the sprocket is in the right place, from a "course adjustment" > standpoint. I'm not off by a tooth, in other words. > > However, the slotted sprocket and the slack in the secondary chain gives me > adjustability that amounts to about 10% of a tooth. It's this "fine > adjustment" that has me wondering.... > > The Bentley manual doesn't offer any guidance on this "fine adjustment'. It > amounts to about 1.2 degrees adjustabilty at the camshaft, or 0.6 degrees if > you consider valve timing from the crankshaft point of view. > > Maybe I shouldn't be concerned? > > Any opinions? Advice? > > Brian McCa > > rthy > '76 2002 > '95 M3, soon to have less noise on startup (hopefully!)
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#6. Jeff Lin - white courtesy telephone please :-) - from jim.bassett@alloptic.com
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Date: Mon, 4 Feb 2002 13:08:35 -0800 From: jim.bassett@alloptic.com Subject: Jeff Lin - white courtesy telephone please :-) (Sorry for the broadcast message.) Jeff, Can you email me with the rotor supplier that we talked about on Sunday? Coleman? Thanks, Jim Bassett
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#7. Re: e36 m3 cat shields - from Neil Maller
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Date: Mon, 04 Feb 2002 16:34:22 -0500 From: Neil Maller <neil.maller@gte.net> Subject: Re: e36 m3 cat shields on 2/4/02 3:31 PM, "kitwetzler@mindspring.com" <kitwetzler@mindspring.com> wrote: > the @*#($*(@#$*@(#*$ cat shields broke loose on the M3 again. I screwed in > another screw to hold it tightly, but this is a pretty temporary fix. > > Anyone have suggestions on repairing this? Doesn't look like an easy welding > fix, or I would've done that already. Mine are loose too, mostly I think as a result of scraping over the lip at the top of the ramp into my garage. Perils of lowered suspension <g> The heat shield's resonant frequency coincides perfectly with idle speed. They seem to be made with some kind of foam or mesh providing a resilient mount to the cat pipes at either end. Mine now just have loose clearance in that area, so they rattle. I'm going to try safety wire to cinch the shields down against the pipes. Since the heat shield only comes with the exhaust cat section and lists for $1150, I sure don't see that as a much of an option... Neil 96 M3
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#8. Factory Rear Spoiler Install??? - from Clark Cook
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Date: Mon, 4 Feb 2002 19:20:13 -0500 From: "Clark Cook" <cooksan@prodigy.net> Subject: Factory Rear Spoiler Install??? Anyone know where on-line instructions, photos, etc may be found? I = have the factory version, already painted as does my buddy Tom Tice--we are ready to install but need pointers, instructions, etc. so as to not screw up the job. I hate drilling into the trunk area without knowing exactly what to do. Thanks Clark Cook
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#9. Help ..Secondary air pump problem... - from Shelhart2@aol.com
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Date: Mon, 4 Feb 2002 20:49:28 EST From: Shelhart2@aol.com Subject: Help ..Secondary air pump problem... My secondary air pump (the air pump that bring air into the manifold on cold start) started to make some noise and over the course of a few days got progressively louder. The unit vibrated quite a bit and there was no doubt the noise was coming from the pump. I replaced the unit ($190) and installed in a minute. No issues ... I started the car today and heard a little noise. I opened the hood and heard a little more noise than I recall and felt a fair vibration from the new unit. Problem... Through my lack of potentially poor due diligence, did I miss something else that may be causing pump failure? Or, Is there something else that could be wrong? The pump is sucking in air but I don't recall being able to hear it in the car and don't remember the vibration. This would not be the first time the self taught mechanic makes the wrong diagnosis and replaces a part that didn't need to be replaced while feeling I saved $$. I appreciate all of the wonderful support and will return the favor anytime I can... TIA Shel Hart 98 M3
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#10. Re: Looking for good wheel polish - from Michael Kelley
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Date: Mon, 4 Feb 2002 21:19:22 -0800 From: "Michael Kelley" <mkelley@nc.rr.com> Subject: Re: Looking for good wheel polish Steve Sun wrote: > What is a good aluminum wheel polish to use? Hands down, the best metal polishing product I've ever used is NEVR-DULL. It is a cotton wadding (I think polished cotton, gives each fiber a cutting edge) that is impregnated with metal polish, comes in a metal can and can be found at many auto parts stores, even Walmart auto dept in the car care aisle. Can't say that I've used it on wheels but I have used it on all types of metal including aluminum (keeps my oil filter cap nice and shiney) and have never been disappointed with the results. The only problem.....it's for hand application only and can't be used with power tools/polishers/buffing wheels. Mike 98M3C