shn7 Posted June 14, 2007 Share Posted June 14, 2007 A conversation at last nights West Sussex meet got me wondering if those who have had a failure of throttle or clutch cable have pedal stops fitted. Personally I've never had a failure but all 3 of my Sevens have had pedal stops fitted to both throttle and clutch pedals. Maybe those without the stops should consider fitting them. It's a simple enough mod. Steve. Sussex (West) AO Not forgetting Percy the Polar Bear Link to comment Share on other sites More sharing options...
Peter Carmichael Posted June 14, 2007 Share Posted June 14, 2007 The clutch cable fails for fairly obvious mechanical reasons. Some chassis have the entry point of the cable to the pedal box at the wrong angle. I have been running a hydraulic clutch of my own design for 7 years, so not really an issue for me. Throttle cables... a foot is an indelicate means of applying a position-based input. My cable arrangement will flex rather than put undue force on the cable. Seems to work, but I'm not entirely happy that I have enough power to never need to explore the further reaches of the throttle travel. Link to comment Share on other sites More sharing options...
shn7 Posted June 15, 2007 Author Share Posted June 15, 2007 but I'm not entirely happy that I have enough power to never need to explore the further reaches of the throttle travel. Excatly my reason for thinking that a pedal stop will reduce if not eliminate cable failures. Agree on the clutch cable too, but again putting excess stress on the cable in the heat of acceleration can't be good for the strands and will exacerbate the problem. Steve. Sussex (West) AO Not forgetting Percy the Polar Bear Link to comment Share on other sites More sharing options...
Jason Plato Posted June 15, 2007 Share Posted June 15, 2007 the tip of the throttle cable chaffs away at the cable if the pedal is set at a certain position. Take the pedal cover off and check if your cable chaffs. here is C7 TOP Taffia Area Rep Link to comment Share on other sites More sharing options...
shn7 Posted June 15, 2007 Author Share Posted June 15, 2007 Not mine (to date at least). The other thing that got me thinkning about this was having seen a failure at Dunsfold where the nipple at the pedal end had broken up rather than the cable breaking. Too much pressure on your nipple's not a good idea me thinks 😳 😬 Steve. Sussex (West) AO Not forgetting Percy the Polar Bear Link to comment Share on other sites More sharing options...
PAUL MARRIOTT Posted June 15, 2007 Share Posted June 15, 2007 33000mls and not a failure, no stops fitted either. Well not until last year when I fitted a stop to the loud pedal, had been thinking about it for a while (5/6 years ). Paul M Link to comment Share on other sites More sharing options...
MAK Posted June 16, 2007 Share Posted June 16, 2007 31000 miles K Series without either Clutch or Accelerator cable failing. I suspect careful routing is the answer. Failing that, consider them part of planned maintenance and replace just before they fail 😬 Link to comment Share on other sites More sharing options...
Cuckfield R300 Posted June 18, 2007 Share Posted June 18, 2007 Having just had the throttle cable go on Sunday morning I wish I had read this sooner! Mine had chaffed at the top of the pedal where the cable exits the nipple so it will be part of the regular monthly checks from now on! Does anyone know if CC or elsewhere does a throttle stop? Cuckfield R300 Link to comment Share on other sites More sharing options...
shn7 Posted June 18, 2007 Author Share Posted June 18, 2007 Cuckfield, Pedal stops are easy to create with a long bolt, some nuts and an appropriate hole in the pedal box. The last bit can be the most awkward in getting a drill to where you want the hole. The head of the bolt forms the stop that the pedal hits and the nuts/washers either side of the pedal box hold the bolt in the correct position allowing just enough pedal movement so as to prevent excess load on the cable. Steve. Sussex (West) AO Not forgetting Percy the Polar Bear Link to comment Share on other sites More sharing options...
Cuckfield R300 Posted June 18, 2007 Share Posted June 18, 2007 Thanks for the advice - that's next Starurday morning taken care of then. Purely by chance the cable snapped at Fontwell - assume not far from you in Selsey Cuckfield R300 Link to comment Share on other sites More sharing options...
shn7 Posted June 18, 2007 Author Share Posted June 18, 2007 Indeed not too far. Steve. Sussex (West) AO Not forgetting Percy the Polar Bear Link to comment Share on other sites More sharing options...
Lotus Boy Posted July 18, 2007 Share Posted July 18, 2007 Spooky I have just had my clutch cable snap on me. Car is a '94 HPC, 35,000 miles. Cable snapped at the pedal end. I was amazed how much lighter the clutch pedal was after fitting the new cable. Also despite setting the nuts in the same position as the old cable, the new cable came up shorter so the old cable must have really stretched over the years. Have now put a pedal stop on it. Feels so much better too now that the pedal travel isn't so long. Also whilst up at Hyperion today (who did a great job for me on a pedal box mod) I noticed that they fit throttle stops to all the race cars. Dave Link to comment Share on other sites More sharing options...
shn7 Posted July 18, 2007 Author Share Posted July 18, 2007 Throttle and Clutch stops both definitely a good idea IMHO just don't experiment with a stop for the brake pedal 😬 Steve. Sussex (West) AO Not forgetting Percy the Polar Bear Link to comment Share on other sites More sharing options...
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