MrfixIT Posted May 28, 2009 Share Posted May 28, 2009 I'm converting the brakes on my S1 80 as I rebuild it. I am using 3/16 pipe and suitable cylinders, and have purchased a non-servo master cylinder for a series 3. This cylinder uses 2 sizes of brake pipe, 1/4 for the brake system and 3/16 for the reservoir, which I didnt expect, I thought it used 3/16 through out. Is there a master cylinder that uses 3/16 pipe for both, or can I get an inline adapter to convert the pipe size? I've done a search via google, not really come up with anything. Quote Link to comment Share on other sites More sharing options...
rtbarton Posted May 28, 2009 Share Posted May 28, 2009 I think that should be 1/4 for the resevoir and 3/16 for the brakes. IIRC mine had a bit of 1/4 in copper pipe from the MC with a short piece of rubber to the resevoir. Quote Link to comment Share on other sites More sharing options...
Phil Hancock Posted May 28, 2009 Share Posted May 28, 2009 If you are still on the 10" brakes you want a S2-2a clutch master/SWB brake master, that is for 3/16" pipe on both ports. Quote Link to comment Share on other sites More sharing options...
MrfixIT Posted June 3, 2009 Author Share Posted June 3, 2009 If you are still on the 10" brakes you want a S2-2a clutch master/SWB brake master, that is for 3/16" pipe on both ports. Thanhs for the replies, the cylinder I have is, I'm pretty sure the one you refer to, L/R part no 90569126, but it has different size ports. That said, if the end furthest away from the the push rod end is the resevoir, then I can use it. The old one off the S1 had the resevoir connected to the port in the middle of the cylinder, and I thought that the newer one would work the same way, I dont have a manual for a series II/III landy to check. However, i'm told that I could get a suitable adapter from a scuba diving shop, the UNF threads are used in diving kit, should I need to. Quote Link to comment Share on other sites More sharing options...
rtbarton Posted June 3, 2009 Share Posted June 3, 2009 The outlet will be at the end towards the front of the vehicle, the resevoir connects to the port to the rear. Quote Link to comment Share on other sites More sharing options...
Phil Hancock Posted June 4, 2009 Share Posted June 4, 2009 I must be getting old, the res port is bigger than the outlet port. 7/16"UNF inlet(at end), 3/8"UNF outlet(middle). Quote Link to comment Share on other sites More sharing options...
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