clarkerussell Posted July 23, 2009 Share Posted July 23, 2009 Guys, Can you use a clutch master cylinder for the AX15 on an NV3550? I know the older master cylinders used rigid lines and hoses and the NV3550 has plastic connectors, but would the master cylinder match up to the slave? Is it even relevant as long as you can get a hydraulic hose from the master to the slave? I'm asking because I'd like to go back to the standard mount slave cylinder that didn't require hacking up my firewall, but I don't know if/how the hoses would connect and if the master cylinder had to "match" the slave. Thanks. Clarke Link to comment Share on other sites More sharing options...
Sir Sam Posted July 23, 2009 Share Posted July 23, 2009 The external XJ AX15 Master/Slave/Line is the same as the XJ NV3550 unit. Please note that when you buy this part new it comes as one piece supposedly prefilled with fluid. While it is possible to replace the master or the slave separately, I would recommend getting a single unit used or new, and save yourself alot of hassle of trying to graft two pieces together. Link to comment Share on other sites More sharing options...
clarkerussell Posted July 23, 2009 Author Share Posted July 23, 2009 The external XJ AX15 Master/Slave/Line is the same as the XJ NV3550 unit. Please note that when you buy this part new it comes as one piece supposedly prefilled with fluid. While it is possible to replace the master or the slave separately, I would recommend getting a single unit used or new, and save yourself alot of hassle of trying to graft two pieces together. Well, the master cylinder I had was an OEM part with the hose already attached, but not attached to the slave. The NV3550 I got at the junk yard came with the slave, but the line was clipped. I had to remove the old line (2" or so), and then the new line just clipped on. SO, the only reason I'm looking into this is to avoind the cutting/welding/fabrication of a bracket to adapt the newer Master Cylinder to the MJ firewall holes. If I can just use an older Master with the existing slave, I'll go that route, I just don't know how to connect the master to the slave or if it's even possible due to fluid volumes, etc. Clarke Link to comment Share on other sites More sharing options...
Sir Sam Posted July 23, 2009 Share Posted July 23, 2009 The external XJ AX15 Master/Slave/Line is the same as the XJ NV3550 unit. Please note that when you buy this part new it comes as one piece supposedly prefilled with fluid. While it is possible to replace the master or the slave separately, I would recommend getting a single unit used or new, and save yourself alot of hassle of trying to graft two pieces together. Well, the master cylinder I had was an OEM part with the hose already attached, but not attached to the slave. The NV3550 I got at the junk yard came with the slave, but the line was clipped. I had to remove the old line (2" or so), and then the new line just clipped on. SO, the only reason I'm looking into this is to avoind the cutting/welding/fabrication of a bracket to adapt the newer Master Cylinder to the MJ firewall holes. If I can just use an older Master with the existing slave, I'll go that route, I just don't know how to connect the master to the slave or if it's even possible due to fluid volumes, etc. Clarke It is not possible to connect an older master to a newer line(at least not without some real work) All the masters from something like 1993 on are the same plastic style with the roll pin. Any of those will work. The older metal types cannot easily be adapted. Link to comment Share on other sites More sharing options...
Eagle Posted July 23, 2009 Share Posted July 23, 2009 All the masters from something like 1993 on are the same plastic style with the roll pin. Any of those will work. The older metal types cannot easily be adapted. Incorrect. I beg to differ. A few years ago at the NAXJA NACFest in PA, one of the guys had the plastic line in his 94 XJ melt due to the heat generated by towing another disabled Jeep out of the woods on a warm day. We went into town and bought an old, original style clutch hose with metal ends. I don't recall if he also bought an old-style master cylinder. In any event, we also bought a few miscellaneous adapter fittings, went back to the campground, and made up a conversion in the parking lot. (The parts store was about to close, so we bought more than was needed just to be reasonably sure we'd have what we might need.) The adaptation itself was easy, but getting it bled was a bear. Link to comment Share on other sites More sharing options...
clarkerussell Posted July 23, 2009 Author Share Posted July 23, 2009 The external XJ AX15 Master/Slave/Line is the same as the XJ NV3550 unit. Please note that when you buy this part new it comes as one piece supposedly prefilled with fluid. While it is possible to replace the master or the slave separately, I would recommend getting a single unit used or new, and save yourself alot of hassle of trying to graft two pieces together. Well, the master cylinder I had was an OEM part with the hose already attached, but not attached to the slave. The NV3550 I got at the junk yard came with the slave, but the line was clipped. I had to remove the old line (2" or so), and then the new line just clipped on. SO, the only reason I'm looking into this is to avoind the cutting/welding/fabrication of a bracket to adapt the newer Master Cylinder to the MJ firewall holes. If I can just use an older Master with the existing slave, I'll go that route, I just don't know how to connect the master to the slave or if it's even possible due to fluid volumes, etc. Clarke OK, so the new master cylinder does use the newer plastic lines, but now I can't find a place to buy the line itself. The one I have is for the newer Master Cylinder and it attached to the bottom of the cylinder instead of the top. I guess I'll have to call the dealer tomorrow to see what can be done. It is not possible to connect an older master to a newer line(at least not without some real work) All the masters from something like 1993 on are the same plastic style with the roll pin. Any of those will work. The older metal types cannot easily be adapted. And I'm assuming the 1993-1996 master cylinder has the same mounting points as the older style Master Cylinder, right? If so, I might be able to salvage this! I just need to get a 1993-1996 Master and take a look. That's a lot easier than buying a welder and fabricating my adapter... Link to comment Share on other sites More sharing options...
clarkerussell Posted July 28, 2009 Author Share Posted July 28, 2009 OK, so my roller pin Master Cylinder showed up yesterday, and it will mount just fine. The only problem is that the line I have running from my slave to the master is not correct. The newer master cylinders use a bottom mounted hydraulic line while the old one comes out of the top. Also, it does not look like the line is available from anyone, even the dealer. The only way to get the line is as a complete kit with master/slave/line as one unit. That's $200 at the dealer... Is there a different line that can use to route to the slave, or should I just buck up and either fabricate the mount or just buy the kit? Thanks in advance. Clarke Link to comment Share on other sites More sharing options...
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