Tomiam Posted March 29, 2016 Share Posted March 29, 2016 Woohoo! I've paid back a bit of the help I've received from these forums!! :D :D Glad Ive helped with at least a bit of the problem. Link to comment Share on other sites More sharing options...
PC Pete Posted April 1, 2016 Author Share Posted April 1, 2016 Well, thanks for your thoughts on this rev problem. Given the photo above I am hoping I have found the issue. Broken wire to the coil pack on cylinder no. 1.Can't say I am impressed with the quality of what was supplied - this engine has only done 2500 miles and is less than 3 years old.new connector on order from Simtek - should arrive tomorrow.thanks again for your thoughts.peter Link to comment Share on other sites More sharing options...
revilla Posted April 1, 2016 Share Posted April 1, 2016 That does indeed look like the problem - pretty impressive that it made 6400rpm with one coil down! Link to comment Share on other sites More sharing options...
John Vine Posted April 1, 2016 Share Posted April 1, 2016 Peter - have you seen this thread (post #15 onwards)? It deals with the very same COP wiring problem.JV Link to comment Share on other sites More sharing options...
PC Pete Posted April 1, 2016 Author Share Posted April 1, 2016 Thanks Johnyep - same issue - cylinder no.1. Break in the wire to the coil pack. Well, held on by 2 strands till I got my hands on it!wasn't aware of the race loom. I'm guessing they might be expensive. Anyway - replacement connector on it's way. Tomorrow's job. Will look further at the other thread - great photos and write up. Interesting that it is a known problem. But after 2500 miles? Really? Having built three Caterhams how did I get this far without Blatchat?!Peter Link to comment Share on other sites More sharing options...
John Vine Posted April 1, 2016 Share Posted April 1, 2016 Mine went at about 13K miles, at the 2-year point. The flexi-loom (£36.30 now) completely fixed the problem. JV Link to comment Share on other sites More sharing options...
PC Pete Posted April 2, 2016 Author Share Posted April 2, 2016 Thanks again Gents for help and advice. New connector to the COP? on cylinder 1 and full revs are restored. Replacement loom on order with Caterham. Further advice from an F1 engineer (responsible for the electrics integration ) means that I may well beef up the new look when it arrives.Shame it's due to rain tomorrow ...... Link to comment Share on other sites More sharing options...
PC Pete Posted April 2, 2016 Author Share Posted April 2, 2016 ..... loom not look.... Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted April 2, 2016 Member Share Posted April 2, 2016 Well done.Jonathan Link to comment Share on other sites More sharing options...
John Vine Posted April 2, 2016 Share Posted April 2, 2016 Pleased to hear it's fixed. You'll find that the flexi-loom wiring is quite a bit more substantial the the standard flimsy wiring. The leads are sheathed in heat-resistant and vibration-resistant silicone. Definitely does the job!Note that you may have to do a bit of loom-splicing to fit the male 6-way Econoseal.JV Link to comment Share on other sites More sharing options...
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