kevinprice Posted June 7, 2004 Report Share Posted June 7, 2004 Hi guys anybody had this before my TR6 PI has been fully rebuilt,the engine pulls well and accelerates freely, fuel consumption is reasonable and car starts and ticks over well. However a six cylinder should have a smooth tick over, mine appears to vibrate, it will tick over and then every 2nd full revolution it will miss a beat, Ive changed injectors, reset butterflies, renewed seals and bushes in fuel distributor, it has electronic ignition, new plugs new rotor and cap, just converted to bosch pump. any clues ??? Quote Link to post Share on other sites
Richard Crawley Posted June 7, 2004 Report Share Posted June 7, 2004 Kevin, You seem to have checked everything that needs checking; does it pick up cleanly on all 6 after idling or does it miss slightly on one pot? If so it could still be an injector problem. Feel each fuel line in turn near the PI distributor, you should be able to feel a strong & definite pulse; if one is weak look at that injector spray pattern & check for air or debris. My car has other problems but it idles perfectly; they ere always a bit brm, brm, brm & won’t idle as smoothly as a modern 6 pot Beemer, especially with the CP series cam. How did you set the throttle butterflies? They can be a bit difficult to synchronize especially if you have the later CR series throttle linkage which is a pile of ****! Quote Link to post Share on other sites
kevinprice Posted June 7, 2004 Author Report Share Posted June 7, 2004 thanks all the injectors have a strong pulse, no cylinders miss fire, your right about the butterflies but at idle these are all closed fully, the vacuum is ok because if i close the idle vent screw,the engine stalls, this is a cr model, any suggestions who in the tunbridge wells area is good for tuning, and how much ? Quote Link to post Share on other sites
Richard Crawley Posted June 7, 2004 Report Share Posted June 7, 2004 Kevin, dont personally know anyone in Tunbridge area but the problem may well be down to that CR linkage - & why so many change it. Have you had a look at this site http://lucasinjection.com ? Quote Link to post Share on other sites
jonlar Posted June 7, 2004 Report Share Posted June 7, 2004 Have a look at this, the canine's gonads!! http://www.prestigeinjection.fsnet.co.uk/throtlink.htm Quote Link to post Share on other sites
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