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Forwarded message: >From type-3-errors@umich.edu Mon Sep 8 11:42:33 1997 Date: Mon, 08 Sep 97 07:57:00 PDT From: Toby Erkson <Toby_Erkson@ccm.jf.intel.com> Message-Id: <Mon,.08.Sep.97.07:59:28.PDT_5@ccm.jf.intel.com> To: type-3@umich.edu Subject: Re: Slip-slid'n away...(Long, but please read on.) Adriaan, Your vehicle is responding exactly as it should -- nothing is wrong with it! You don't even want to mess with the system in terms of proportioning valves and restrictors. There is no such thing as a poor man's ABS, only a dead man's ABS :( I know this isn't what you wanted to hear but there is another part of the braking system you CAN change, the part that controls it...YOU! It is difficult to remember and implement, especially when under the sudden stress of a situation, but I've done it on both my cars and it's proven to work by every driving school and professional driver in the world (it's exactly how ABS systems work as well): Pump your brakes while stopping. As you are stopping you want to bring your car to the brink, the very edge, of skidding but actually don't. When you sense the car beginning to lock up you quickly release the pressure a LITTLE AMOUNT to keep the brakes from locking. You then reapply the brakes until you sense them beginning to lock up again, then you release. Repeat the cycle until you no longer need to emergency brake. This takes practice and may seem awkward but it has saved my 914 from plowing into several cars. This technique allows you to stop quickly and KEEP CONTROL OF YOUR CAR. Since the wheels aren't locked up you can still maneuver the car. When my 914 locks all four discs she will skid in a straight line and turning the steering wheel does no good. But by pumping the brakes I am not only able to slow down very rapidly but I also can steer my precious around obstacles. Putting bigger brakes will not help the situation nor will discs in the back. Brake lock up is brake lock up no matter what the size the brakes. Toby Erkson air_cooled_nut@pobox.com '72 VW Squareback 1.6L bored and stroked to 2.0L '75 Porsche 914 1.8L NOT for sale Portland, Oregon http://www.geocities.com/MotorCity/8501/ ______________________________ Reply Separator _________________________________ Subject: Slip-slid'n away...(Long, but please read on.) Author: type-3-errors@umich.edu at SMTPGATE Date: 9/8/97 2:47 PM ... So what does one do to fix a lockup problem? This was not the first time I had the rear wheels lock on me under emergency braking but I would like it to be the last. The condition of the various players in this saga is as follows: ... Does anyone have any ideas? I am thinking of installing a pressure restricting valve in the rear brake line to prevent this from occurring again. (Poor man's ABS I suppose.) Has anyone done this before? Is it a good idea? Anyway, I'm grateful that no serious damage was done to my car and that I lived to tell the tale! All input from you people will be appreciated. Regards Adriaan Loedolff adriaan@norton.ctech.ac.za '69 Variant Automatic (200 000 miles + and still cruisin' after all of these years!)