Westfield Posted June 19, 2005 Share Posted June 19, 2005 The rev counter on my 1997 HPC seems to have a mind of its own… the needle fluctuates all the time and sometimes sticks at 4000 RPM. I am not confident its reading right either… It’s a Caterham branded one… anyone else experienced problems? While I am on, anyone got one for sale? Either a standard one or even a different make? Web site updated!! Link to comment Share on other sites More sharing options...
Myles Posted June 19, 2005 Share Posted June 19, 2005 Not running an Emerald are you? The current SW has a bug for some people - if you have the revcounter tell-tale switched on, the rev-counter output sometimes goes nuts... Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Westfield Posted June 19, 2005 Author Share Posted June 19, 2005 Myles It’s a standard MBE system as supplied by Caterham. Just been out in the car again and the needle wavers by 1000 RPM on a steady throttle. Runs great, no miss fire or anything so I suspect it may be the rev counter or maybe a connection? Web site updated!! Link to comment Share on other sites More sharing options...
Myles Posted June 19, 2005 Share Posted June 19, 2005 It's not much more than a five minute job (if that) to swap yours out with another and try that. That'd tie it down without having to faff with tugging wires. Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
davef Posted June 19, 2005 Share Posted June 19, 2005 Mine started playing up a few weeks ago - going all over the place, sticking, reading zero. Appeared to be a faulty connector in the back of the guage/connector (in that wriggling the connector temporarily fixed it). Also seemed to be non linear and under read (according to the RR I visisted) I bought a s/h replacement - unfortunately hadn't realised it had a different type of connector on the back so no go. In the end I bought a Stack ST200 and fitted that yesterday - so far working a treat Dave Link to comment Share on other sites More sharing options...
Alex Wong1697456877 Posted June 19, 2005 Share Posted June 19, 2005 The damping springs are a known failure - my '97 one lasted about 30,000 miles and then started bouncing all over the place. I believe they can be repaired but I replaced mine with a Stack ST200 which was much better. Link to comment Share on other sites More sharing options...
jmalcol1 Posted June 19, 2005 Share Posted June 19, 2005 Check and tighten all earth connections including windscreen wiper motor, Worth a try. Mine was boincing about after 4000 rpm. Finally replaced faulty oil presure switch which seems to have fixed the problem with the bonus that I have more oil pressure then I have ever had! 😬 John M GK03 EGX SV Link to comment Share on other sites More sharing options...
MorganMan Posted June 20, 2005 Share Posted June 20, 2005 They do appear sensitive to the earth. I had a similar problem with mine during the build, (K series) it shot up to 7000 on turning the ignition on and they decayed slowly to 1000 after starting, turn the wipers on and it went up to 4000. I had connected a group of engine loom earths to the battery -ve. I re-connected them to the engine block, problem gone. Link to comment Share on other sites More sharing options...
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