A: The biggest problem I have found with them is the Orings swell up from contamination and master cyl crud and jam the valve to one side. From: Frank Swygert <farna@xxxxxxx> Subject: Re: [AMC-List] combination valve To: amcrelay@xxxxxxxxxxxx Message-ID: <ADVANCES62GCl9FopYC000006a5@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> Content-Type: text/plain On November 11, 2006 Tom Jennings wrote: >On Fri, 10 Nov 2006, Frank Swygert wrote: > > > Wayne, the valve has to be centered. If it swings to one side it will > > block that side from receiving fluid, or at least cut it way down. > >Really? > >Its been a while since I've taken one apart, but I thought for >sure it couldn't move that far. I've been wrong before though... I think some models will at least partially block the flow. Probably not enough ot affect braking though. I've looked at the cut-away diagrams, haven't physically taken one apart. There were some changes in the designs over the years, so one range of years might block flow when tripped and some may not move over far enough. That's why I put in the "or at least cut it way down", but should have stated "at least some years will at least partially obstruct the flow", or something similar. I don't recall if it was early or late models that had the valves that at least appeared to block the flow when tripped. More likely late model disc brake valves. I know the old drum brake valves won't block the flow. _________________________________________________________________ Try the next generation of search with Windows Live Search today! http://imagine-windowslive.com/minisites/searchlaunch/?locale=en-us&source=hmtagline _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com