Date: 25 Mar 2005 15:03:38 GMT From: Dave Hinz <DaveHinznospamcop.net> Subject: Re: 9-3 brake rotor
On Thu, 24 Mar 2005 18:16:45 -0500, doug <dougejNOSPAMnospamFREEhotmail.com> wrote: > Dave > > What I posted says it all - Yes, I saw what you posted. > if one forces brake fluid through any ABS system > in a direction it was not intended to flow, there is always the potential > for damage. Brakes _do_ intend flow in the reverse direction. That's how they release. > The electronically controlled solenoid valves in a hydraulic > control unit are not designed for bi-directional flow. The act of forcing a > piston back into its bore in the caliper can - and occasionally does - > cause damage. Why even risk it if it can be avoided so easily? Do you have any documentation that shows that your theory applies to Saab brake systems? > This isn't a Saab issue specifically; rather it's concept that applies to > cars with ABS in general. Yes, I understand that. > My advice is based on many years of experience and > common sense. Factory repair manuals are great for providing info on how to > do repairs on proprietary components, or for wiring diagrams or > troubleshooting diagrams. But does one need to refer to Saab documentation > to do decide if it's better to avoid damaging an expensive component by > following my suggestion? I think not. And yet, until I see something from Saab's documentation, your suggestion is just based on handwaving and theory. If it's valid, Saab will say so. If they don't, it's just another "I heard someone say" level of advice. I'm not saying your suggestion doesn't seem logical, I'm saying that plenty of things that seem logical are unnecessary and/or wrong, and I'm trying to see some evidence other than you saying "it makes sense" to decide which category this goes into. And please don't top-post, it fucks up the flow of the conversation. > "Dave Hinz" <DaveHinznospamcop.net> wrote in message > news:3agoirF68k3u0U1nospamvidual.net... >> On Thu, 24 Mar 2005 15:53:35 -0500, doug >> <dougejNOSPAMnospamFREEhotmail.com> wrote: >>> >>> Under no circumstances should you push the caliper piston back into the >>> bore - there is definitely the potential of damage to the ABS. >> >> Can you show any Saab documentation that says that? >> > >
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