mike kimmens Posted April 6, 2015 Share Posted April 6, 2015 Due to problems with my knee I need to make the clutch pedal in my 1967 MK1 2000 lighter, I'd prefer to do this rather than stick an auto box in it. Although the car is a 1967 MK1 2000 it has been updated/graded to full 2500S spec. Can a remote servo be used with a clutch? Any ideas appreciated Quote Link to comment Share on other sites More sharing options...
JohnD Posted April 6, 2015 Share Posted April 6, 2015 Or, you could try a smaller bore clutch master cylinder.The travel will be greater, if your knee will stand that.JOhn Quote Link to comment Share on other sites More sharing options...
mike kimmens Posted April 6, 2015 Author Share Posted April 6, 2015 John, thanks for that idea, I've had a look at cw website and he lists 2 sizes of slave cylinder bore but only one master cylinder cw says 7/8 will give longer travel than 1" so I think I will have a look at what bore slave is already fitted and it might be a simply solution. Won't now if knee can cope until I try it, Spa at end of May so need to sort it before then. Regards Mike Quote Link to comment Share on other sites More sharing options...
willows40 Posted April 6, 2015 Share Posted April 6, 2015 Don't know if it works or not, but remember seeing car sos putting a servo on clutch, think it was a stag to make it lighterCheers Andy Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted April 6, 2015 Share Posted April 6, 2015 Pretty sure you could use a remote servo. I've also seen that some relatively modern larger Japanese 4x4 s have servo'd clutch M/Cs which look just like smaller versions of the brake ones. Certainly Nissan Patrols of 2007/8 vintage have them.Nick Quote Link to comment Share on other sites More sharing options...
nicmk1est Posted April 6, 2015 Share Posted April 6, 2015 yeah it was on that daimler v8 2door thing,,no idea what it called Quote Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 7, 2015 Share Posted April 7, 2015 just google itthere's a few availableused the wabco ones on trucks may need small air supply , 12v Tyre inflator may be sufficient then apart from cyl diameter ratio changes try a bigger pedal pad makes a lot of difference and cheapPete Quote Link to comment Share on other sites More sharing options...
Glenn Posted April 7, 2015 Share Posted April 7, 2015 Like Andy says, check out Car SOS - it was to the Zodiac they fitted a clutch servo. Looked simple enough in the show and seemed to do the job nicely. Quote Link to comment Share on other sites More sharing options...
nicmk1est Posted April 7, 2015 Share Posted April 7, 2015 you are correct glenn,it was the zodiac vid here,skip to 20.22 ish https://www.youtube.com/watch?v=QbAURujaQUE Quote Link to comment Share on other sites More sharing options...
colmiller Posted April 10, 2015 Share Posted April 10, 2015 On the Daimler Dart Car SOS did they also wanted a lighter clutch and on that they swapped out the pressure assembly which had coil springs for one using a diaphragm spring. It surprised me that it would have made any difference. Surely the spring pressure would need to be the same. Quote Link to comment Share on other sites More sharing options...
RobPearce Posted April 13, 2015 Share Posted April 13, 2015 10362 wrote:On the Daimler Dart Car SOS did they also wanted a lighter clutch and on that they swapped out the pressure assembly which had coil springs for one using a diaphragm spring. It surprised me that it would have made any difference. Surely the spring pressure would need to be the same.It makes quite a difference.The coil spring clutch is linear - the further you compress the springs, the more force it takes. The clutch engaged condition, where the pressure is required to transmit torque, is with the springs minimally compressed. Thus you need to apply more force to disengage the clutch - and hold it disengaged - than is needed to clamp it.The diaphragm spring is an "up-and-over" device. Once you've pressed it past the knee point, the force required to push it further - and hold it there - is far less. Quote Link to comment Share on other sites More sharing options...
colmiller Posted April 15, 2015 Share Posted April 15, 2015 Thx. Makes sense to me now. Quote Link to comment Share on other sites More sharing options...
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