chriseke Posted August 19, 2015 Share Posted August 19, 2015 I have a 2004 1.8 K series roadsport and have reservations about the rigid brake pipes connected to floating calipers. I would like to change the pipes to stainless steel braded flexible ones, but I am confused as to what threads the brake unions are. (Ford Seira Calipers?) A UNF one seems to be far to sloppy, but the inboard end is definetly UNF, the metric equivalent are a better fit in the calipers. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted August 19, 2015 Member Share Posted August 19, 2015 The threads are in the archives but I didn't find them. You can get the pipes from Caterham or Redline. This thread (!) has links to the Caterham parts (Redline will supply the right ones if you 'phone them) and some hints on fitting.Jonathan Link to comment Share on other sites More sharing options...
SM25T Posted August 19, 2015 Share Posted August 19, 2015 I recall MOCA2CV getting his brake threads mixed up with expensive results. One end of the car was M10 and the other 3/8". Trying to fit the wrong fitting ... with a bit of force .... damaged the caliper beyond use. Sure it is detailed on his website. Link to comment Share on other sites More sharing options...
OliverSedlacek Posted August 19, 2015 Share Posted August 19, 2015 It's entirely probable that a 2004 car is a mix of metric and UNF. As you might have gathered, mixing one way is sloppy, the other way is tight. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted August 19, 2015 Member Share Posted August 19, 2015 Yes, my 1998 is mixed. Assembly Guide: "Metric ends are indicated by notches on the nut and are used into calipers." That notch of course, might not exist on other pipes.Jonathan Link to comment Share on other sites More sharing options...
Area Representative Richard Price Posted August 19, 2015 Area Representative Share Posted August 19, 2015 I've made up my own rear flexible hoses a couple of times buying "Euroqup" fittings and hose from RallyDesign, using extended banjo fittings at the caliper and convexed ended bulkhead fittings into the tee.They're M10x1 at the caliper and 3/8UNF at the tee on the dedion tube. Link to comment Share on other sites More sharing options...
chriseke Posted August 21, 2015 Author Share Posted August 21, 2015 Thanks every body, I thought the old grey cells had been blown away last time out on the M4.My lines would appear to be a mixture. Link to comment Share on other sites More sharing options...
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