Mark P Posted April 26, 2002 Share Posted April 26, 2002 I have recently purchased a 1.8 Superlight privately. Last night when I went for only my second blat, I noticed that the revs seem to stay very high when changing up the gears. I previously owned a 1.4 k series with a five speed box, and now have the delight of a 6 speed, however, if I accelerate hard, then the revs don't seem to drop that much in between gear changes, and then and when I press the loud pedel more the revs tend to stay high at about 6000 without moving, until I change gear again. I'm probably not explaining this very well, but the only assumption I can come to is that it is either the clutch slipping, the wheels spinning (i wish) or something to do with the LSD. I sorry to post what is probably a very basic question, but you advice woul dbe welcome. Link to comment Share on other sites More sharing options...
1400rs_0of30 Posted April 26, 2002 Share Posted April 26, 2002 I've always been told to to the following to test clutch slipage: While driving, use the brake pedal when accellerating lightly and see if the revs increase, if they do when braking then the clutch is slipping, if the revs die etc then its biting and therefore the clutch isnt sliping... What does the rest of the world think of this technique? Sean The original 1400 K Series Roadsport Prototype My Caterham Website Link to comment Share on other sites More sharing options...
Peter Carmichael Posted April 26, 2002 Share Posted April 26, 2002 This isn't clutch slippage, but your description is a bit confusing. Check your email. Link to comment Share on other sites More sharing options...
First Man Posted April 26, 2002 Share Posted April 26, 2002 Doesn't sound like clutch slippage to me; perhaps ECU, choke or non-standard (heavy) flywheel? Does it tend to happen when running cold/cool and improve as the engine warms? First Man. Link to comment Share on other sites More sharing options...
First Man Posted April 26, 2002 Share Posted April 26, 2002 ... or of course sticking throttle cable...? Link to comment Share on other sites More sharing options...
Mark P Posted April 26, 2002 Author Share Posted April 26, 2002 Will check all of the above later and post the results. The car was pretty standard from Caterham, so I don't think that it could have any non std flywheels etc. Peter I'll give you a call on your mobile if I need to thanks. Link to comment Share on other sites More sharing options...
Paul Ranson Posted April 26, 2002 Share Posted April 26, 2002 Sounds like a dodgy rev counter to me. Paul Link to comment Share on other sites More sharing options...
Geoff Dixon Posted April 26, 2002 Share Posted April 26, 2002 I had exactly the same problem.It was due to: 1) dodgy accelerator cable 2) curvation of the accelerator cable 3) throttle body linkage 4) engine mapping Replaced the acclerator cable Rerouted the acclerator cable Cleaned up the linkage Got the engine remapped. Now perfect! Link to comment Share on other sites More sharing options...
dino ferrana Posted April 26, 2002 Share Posted April 26, 2002 Revs should die quickly on a Superlight due to the lightened flywheel so definately something amiss. Not that useful I know! Probably just a stick throttle cable! Link to comment Share on other sites More sharing options...
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