Peter_Bullen Posted August 19, 2019 Share Posted August 19, 2019 I am experiencing some odd behaviour with the clutch in my 310S. The clutch feels Ok and then suddenly the clutch pedal goes 'floppy' and sometimes there is no resistance at all. It comes back and you can drive it (so far) but its all rather disconcerting especially when the pedal goes right to the floor (with no resistance). I have bled the system, checked for leaks etc and all ok. This behaviour seems to start once its warmed up but varies from day-to day. Its OK when cold and sitting in the garage.The car has only done about 2800 miles and oddly enough I experienced something similar when i first built it (roughly 2 years ago). Brought it up with Caterham at the first check. They bled the system and declared it OK. Its been Ok ever since until Thursday when it started happening again, after about 60 miles! Same again on Sunday after about 12 miles. Anyone experienced this? I have a feeling it maybe to do with the slave cylinder sticking, once warmed up. Is this a possible reason? Link to comment Share on other sites More sharing options...
Dixa1225 Posted August 19, 2019 Share Posted August 19, 2019 Just had the same thing on a 270R , same symptoms cured by replacing concentric slave cylinder. Link to comment Share on other sites More sharing options...
Jim 123 Posted August 19, 2019 Share Posted August 19, 2019 Is the clutch pedal stop set correctly, you don't want too much travel beyond the disengagement point? Link to comment Share on other sites More sharing options...
Peter_Bullen Posted August 19, 2019 Author Share Posted August 19, 2019 Thanks for the reply. Guess this confirms my thoughts. I assume your engine is the same as mine... a Ford Sigma 1600? Do you know what was wrong with the slave cylinder? Had you done many miles? This was meant as a reply to #2. Pedal stop is set correctly .. thanks. Link to comment Share on other sites More sharing options...
Dixa1225 Posted August 19, 2019 Share Posted August 19, 2019 Yes , Ford Sigma engine . Only caused a problem when hot , we think it was being caused by a failing internal seal in the slave cylinder. This was on a race car so not sure on mileage . Been fine since replaced. Link to comment Share on other sites More sharing options...
Peter_Bullen Posted August 19, 2019 Author Share Posted August 19, 2019 Thanks. I think it must be the same issue. Link to comment Share on other sites More sharing options...
John Vine Posted August 20, 2019 Share Posted August 20, 2019 It could be the slave, but I'd be surprised given such a low mileage. I would be looking first at the master cylinder. I suggest you get someone else to operate the clutch while you listen closely to the way it operates. If you can hear odd squishing or sloshing noises, you likely have a failing m/c seal. Refurb kits are available and are easy to fit.JV Link to comment Share on other sites More sharing options...
SM25T Posted August 20, 2019 Share Posted August 20, 2019 And much easier than engine out to access slave! Link to comment Share on other sites More sharing options...
Jim 123 Posted August 20, 2019 Share Posted August 20, 2019 Is it worth taking off the pedal box cover and the dust gaiter on the master cylinder to see if there are any traces of DOT 4 Getting past the piston seal? Link to comment Share on other sites More sharing options...
John Vine Posted August 31, 2019 Share Posted August 31, 2019 Did you manage to diagnose the problem?JV Link to comment Share on other sites More sharing options...
DJ. Posted August 31, 2019 Share Posted August 31, 2019 Change the mastercylinder first, Car Builder Oltions sell them for less than £30.Duncan Link to comment Share on other sites More sharing options...
SM25T Posted September 2, 2019 Share Posted September 2, 2019 The mystery autocorrect word above is Solutions. They are based in Staplehurst. Link to comment Share on other sites More sharing options...
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