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#1. RE: Soft Brakes - from Dorffer, Rich
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Date: Wed, 16 Apr 2003 10:58:18 -0400 From: "Dorffer, Rich" <RDORFFER@CleIndians.com> Subject: RE: Soft Brakes > Chester says > > > > Steve D cap plus either the bleeder version with the pressure regular for > use > > with conventional air pressure lines or the bug sprayer container with *no* > > fluid in the container. I said > > I am curious how you figure your method doesn't "introduce fine bubbles into > the fluid" as you are pressurizing to 20 psi but using a "bug sprayer > container" filled with fluid does "introduce fine bubbles into the fluid"? > Chester says > > When I use the bug sprayer, the bottle is empty. I'm just using it as a source > of air pressure. The typical way to use the bug sprayer is to fill the bottle > with fluid. As you pump and pressurize the container, air is forced through > the brake fluid. Alternatively, one can modify the bug sprayer setup and place > a cutoff container around the bottom of the air pump so that fluid does not > come into direct contact. IMO - Pumping and pressurizing the container full of fluid in a traditional brake bleeder (e.g., Motive brake bleeder) does no more to introduce air into the fluid than your method of using the empty brake bleeder as a pressure source. Both have up to 20 psi of air pressure pushing the fluid. Regards, Rich
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#2. Re: [E36M3] Adjusting Konis - from Chris Teague
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Date: Wed, 16 Apr 2003 08:04:19 -0700 From: "Chris Teague" <cteague@cox.net> Subject: Re: [E36M3] Adjusting Konis Mike, Counter-clockwise to increase the rebound damping, front and rear. Chris 97 M3/4 ----- Original Message ----- > Date: Wed, 16 Apr 2003 00:51:29 -0500 > From: Mike Frank <mfrank28@comcast.net> > Subject: Adjusting Konis > > Can anyone remind me which way to turn my Koni Sports to > increase/decrease rebound damping. Can't find my instructions. I think > the fronts are counter-clockwise for more damping, clockwise for less, > No? Are the rears the same or opposite. > > Thanks, > > Mike Frank > 97 M3 that needs a little less rebound damping in the rear.
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#3. RE: Soft Brakes - from Chester Wong
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Date: Wed, 16 Apr 2003 08:14:31 -0700 (PDT) From: Chester Wong <chester_p_wong@yahoo.com> Subject: RE: Soft Brakes I think you're not fully understanding what I'm trying to say. Now, I don't have the Motive brake bleeder and I have the Steve D brake bleeder. When you pump the Steve D brake bleeder, the pump forces the air through the brake solution....much like if you blow through a straw through a glass of soap water. This air causes small bubbles to form and stay suspended in the solution for a while. I once pressurized the container and opened up the valve to see what the brake fluid looked like that would normally go into the brake reservoir. What did I see? Small bubbles streaming out. If the motive bleeder pumps air into the tank above the brake fluid, then that's fine. Chester --- "Dorffer, Rich" <RDORFFER@CleIndians.com> wrote: > IMO - Pumping and pressurizing the container full of fluid in a traditional > brake bleeder (e.g., Motive brake bleeder) does no more to introduce air into > the fluid than your method of using the empty brake bleeder as a pressure > source. Both have up to 20 psi of air pressure pushing the fluid. =====
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#4. Re: [E36M3] RE: Soft Brakes - from Carey Probst
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Date: Wed, 16 Apr 2003 15:15:20 GMT From: Carey Probst <hcprobst@nycap.rr.com> Subject: Re: [E36M3] RE: Soft Brakes Rich, I think Chester's point was that using the bug sprayer type you actually force the air through the fluid while pressurizing, resulting in air bubbles in the fluid. The bleeder I use from HMS uses pressure from a tire or tank and does not force bubbles through the fluid while pressurizing. Carey > Date: Wed, 16 Apr 2003 10:58:18 -0400 > From: "Dorffer, Rich" <RDORFFER@CleIndians.com> > Subject: RE: Soft Brakes > > > Chester says > > > > > > Steve D cap plus either the bleeder version with the pressure regular> for > > use > > > with conventional air pressure lines or the bug sprayer container wit> h *no* > > > fluid in the container. > > I said > > > I am curious how you figure your method doesn't "introduce fine bubbles> into > > the fluid" as you are pressurizing to 20 psi but using a "bug sprayer > > container" filled with fluid does "introduce fine bubbles into the flui> d"? > > > Chester says > > > > When I use the bug sprayer, the bottle is empty. I'm just using it as > a source > > of air pressure. The typical way to use the bug sprayer is to fill the> bottle > > with fluid. As you pump and pressurize the container, air is forced th> rough > > the brake fluid. Alternatively, one can modify the bug sprayer setup a> nd place > > a cutoff container around the bottom of the air pump so that fluid does> not > > come into direct contact. > > IMO - Pumping and pressurizing the container full of fluid in a tradition> al brake bleeder (e.g., Motive brake bleeder) does no more to introduce a> ir into the fluid than your method of using the empty brake bleeder as a > pressure source. Both have up to 20 psi of air pressure pushing the flui> d. > > Regards, > > Rich > > > ************************************************* > Please help support the E36M3 list by visiting our sponsors: > Taylor Autosport http://www.taylorautosport.com > Rogue Engineering http://www.rogueengineering.com > BMW M3 Specialties http://www.jt-designs.com > Bimmerworld http://www.bimmerworld.com > > DIGEST INFORMATION: > http://www.bmw-m.net/resources/digest_info.htm > ************************************************* > > --------------------------------------------- This message was sent using Road Runner's Web-based e-mail.
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#5. Re: [E36M3] Re: Soft Brakes - from Patrick Buthmann
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Date: Wed, 16 Apr 2003 08:34:43 -0700 From: "Patrick Buthmann" <patrick@teutonic.ca> Subject: Re: [E36M3] Re: Soft Brakes Chester et al, Being an engineer, and not a chemist, I'm wondering how is it that air is being FORCED through the brake fluid? Positive pressure in the "bug sprayer" should apply an even pressure to the entire surface of the brake fluid in the container, and force brake fluid out the exit and into the MC reservoir. I could be missing something, but I have no idea how 'tiny bubbles' (and I hope Gerry doesn't break out into his Don Ho routine again anytime soon...) would get injected into the brake fluid. Can anybody confirm this, scientifically? On a side note, I had virtually the same problem Neil has been having; I just solved mine by installing the Stoptech's instead :) Pat >When I use the bug sprayer, the bottle is empty. I'm just using it as a source >of air pressure. The typical way to use the bug sprayer is to fill the bottle >with fluid. As you pump and pressurize the container, air is forced through >the brake fluid. Alternatively, one can modify the bug sprayer setup and place >a cutoff container around the bottom of the air pump so that fluid does not >come into direct contact. > ____________________________________________________________ Free 20MB Web Site Hosting and Personalized E-mail Service! Get It Now At Doteasy.com http://www.doteasy.com/et/
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#6. RE: Soft Brakes - from Dorffer, Rich
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Date: Wed, 16 Apr 2003 11:23:36 -0400 From: "Dorffer, Rich" <RDORFFER@CleIndians.com> Subject: RE: Soft Brakes No, I fully understand what you are saying. But, my bleeder doesn't introduce fine air bubbles into the fluid via the pump (I use 15 psi which is more than adequate for bleeding brakes). If it did happen like you suggest, these fine bubbles would have to stay suspended in the fluid and sink (which would be odd IMO as air tends to rise to the highest point in brake fluid) to the very bottom of the fluid in the tank to where the fluid pick-up point is, travel through the line up out of the tank and then back down the line into the reservoir, continuing to stay suspended in the fluid in order to travel through the brake system lodging themselves somewhere. Maybe this is happening for some people, but I don't seem to have a problem with it with my Motive brake bleeder. YMMV Regards, Rich - no vested interested in bleeding brakes or the Motive Company.
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#7. Re: [E36M3] RE: Soft Brakes - from Chester Wong
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Date: Wed, 16 Apr 2003 08:24:16 -0700 (PDT) From: Chester Wong <chester_p_wong@yahoo.com> Subject: Re: [E36M3] RE: Soft Brakes Exactly! :) Also, not sure how or why pressure bleeders cost so much. I mean, a $50 tank at Sears that serves double duty at the track to adjust tire air pressure and a $20 cap (I think Steve D sells just the cap) ...and you're all set.... An alternate place for the cap is http://www.gprparts.com/brands/sirtools/bmw.asp Chester --- Carey Probst <hcprobst@nycap.rr.com> wrote: > I think Chester's point was that using the bug sprayer type you actually > force the air through the fluid while pressurizing, resulting in air > bubbles in the fluid. > > The bleeder I use from HMS uses pressure from a tire or tank and does not > force bubbles through the fluid while pressurizing. =====
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#8. rockville/annapolis, md shops - from russell
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Date: Wed, 16 Apr 2003 08:27:41 -0700 (PDT) From: russell <driver8m3@yahoo.com> Subject: rockville/annapolis, md shops does anybody know of any decent shops/mechanics near annapolis (home) or rockville (work), md? need an O2 sensor replaced...dealer said it would be around $300. thanks, russell dakar 99 ===== "democracy is two wolves and a lamb voting on what to have for lunch. liberty is a well-armed lamb contesting the vote."-ben franklin __________________________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo http://search.yahoo.com
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#9. RE: [E36M3] Susp setup help please - from Mel Silva
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Date: Wed, 16 Apr 2003 11:14:39 -0500 From: "Mel Silva" <melsilva@mindspring.com> Subject: RE: [E36M3] Susp setup help please Jay, Remember that your tires are springs too. I have run as high as 44psi cold (52psi hot) to equalize tire temps across the tread. By setting the sways stiffer you increase the load on that outside edge of the tire (thus increasing the temp of the outside edge). I would recommend putting the sways back where they were when you started this exercise and increasing your tire pressures to optimize your tire temps. Use the sways to adjust the amount of understeer or oversteer you are comfortable with. Simple rule to apply: "The stiff side slides". Meaning that if you stiffen the sways up front (or only increase the front tire pressures) that you will increase the tendency to understeer or plow through the corner. Let me know how this works for you. Mel Houston >Since I can't stiffen the springs and I don't want to go to any more >negative camber, I've tried to go stiffer on the sways to increase roll >stiffness. I already have the rebound set pretty stiff (.5 turn from full >stiff). > >But, it seems like the outer edges are running hotter than with the sways >set softer. > >Of course, it may be because the two sessions were at different parking >lots, with different amounts of adhesion. Or, because the diameter of the >circle was different. > >Any thoughts? Is my logic correct? > >Thanks - Jay > >
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#10. RE: [E36M3] RE: Soft Brakes - from Mel Silva
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Date: Wed, 16 Apr 2003 11:22:12 -0500 From: "Mel Silva" <melsilva@mindspring.com> Subject: RE: [E36M3] RE: Soft Brakes Hey Chester, why not just snip about 3 inches off the end of that tube that protrudes into the fluid? Is it the same tube that also works as the pickup tube? In which case, snipping it off would be stupid. I've always seen these things that have a pickup tube for the solution, and the pressure for the vessel is injected through a hole on the bottom of the pump which would never touch your brake fluid unless the thing was very, very full. Mel -----Original Message----- From: Chester Wong [mailto:chester_p_wong@yahoo.com] Sent: Wednesday, April 16, 2003 10:26 AM To: E36M3 Subject: Re: [E36M3] RE: Soft Brakes Date: Wed, 16 Apr 2003 08:24:16 -0700 (PDT) From: Chester Wong <chester_p_wong@yahoo.com> Subject: Re: [E36M3] RE: Soft Brakes Exactly! :) Also, not sure how or why pressure bleeders cost so much. I mean, a $50 tank at Sears that serves double duty at the track to adjust tire air pressure and a $20 cap (I think Steve D sells just the cap) ...and you're all set.... An alternate place for the cap is http://www.gprparts.com/brands/sirtools/bmw.asp Chester --- Carey Probst <hcprobst@nycap.rr.com> wrote: > I think Chester's point was that using the bug sprayer type you actually > force the air through the fluid while pressurizing, resulting in air > bubbles in the fluid. > > The bleeder I use from HMS uses pressure from a tire or tank and does not > force bubbles through the fluid while pressurizing. ===== ************************************************* Please help support the E36M3 list by visiting our sponsors: Taylor Autosport http://www.taylorautosport.com Rogue Engineering http://www.rogueengineering.com BMW M3 Specialties http://www.jt-designs.com Bimmerworld http://www.bimmerworld.com DIGEST INFORMATION: http://www.bmw-m.net/resources/digest_info.htm *************************************************