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PatK last won the day on November 27 2019

PatK had the most liked content!

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    1970 Vitesse 2L Mk2 convertible, 1965 Jaguar Mk2 3.8L

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  1. Thanks Ian, very helpful, as you say try one thing at a time. Air filters tomorrow and plugs next when they arrive. I will keep you posted.
  2. Thanks Clive, engine oil is in the dashpots ( 20/50 ) and I regularly check these. Once I have tried running it without the air filters then hopefully I will be able to see if that is where the problem lies
  3. Thanks Tony, I have one of the Club's glass filters which can be removed and cleaned. I did this recently as there was some small black sediment in it, but not much and it was not blocked, but I cleaned it just in case.
  4. Thanks Ian. It has been there for a while, which was one of the reasons that I sent the Lucas distributor to the Distributor Doctor to rebuild, and that was the last thing that was changed.
  5. Thanks Graham. I have a standard Vitesse air filter box fitted and inside it are the 2 filters, it is fed via two cold air ducts from beside the radiator. I will see if it still misfires with the filters removed and if it is worse then I will know that there is too much airflow, if pulling out the choke cures it then we are on the right track. i realise that with the filters removed the mixture will be a little weaker.
  6. Thanks Dave, that is a most unusual fault, although I'm sure Pete has seen many more strange ones. Thanks Dave I will bear that in mind, if changing the spark plugs and removing the air filters does not cure it.
  7. Thanks Ian and Pete, I will take the filters off tomorrow and give it a try, then if it is still like it I will go down the rubber slivers route, although I did replace my fuel hoses with Gates Barricade rubber ones, but they too may have been counterfeit. I guess the Club shop is one of the few places that you can trust
  8. Thanks Ian, I have just done that and also ordered them from greensparkplug, as I am now unsure about ordering cheaper priced ones from e bay.
  9. Thanks Pete, good advice as usual, I have just ordered a set of W78 plugs. What I forgot to mention in my post was that there is no misfire when revved up from idle, it only happens when the engine is under load and the accelerator is floored, and the throttle butterflies are fully opened above 3500 revs. Do you think that it could be restricted airflow in the airbag, which is fitted with e bay pancake air filters?
  10. Thanks Paul. When the Distributor Doctor overhauled my distributor, which was fitted with the Luminition magnetronic, ignition, he checked all clearances and replaced the rotor arm with a new one and checked all the clearances. He remarked that some rotor arms ( cheap e bay ? ) sit too high and force the carbon brush in the centre of the distributor cap hard up into the cap also causing misfires, but I have checked mine and there is good clearance. The clearance between the rotor arm and the hall effect sensor is fine, so I don't think that is the problem.
  11. Hi All, I hope that you can help with a problem that I have with my Vitesse. The engine pulls fine at lower revs but once the revs go beyond 3,500 there is a persistent misfire and failure to accelerate. This is particularly noticeable when hill climbing. After a 40 minute run, I have removed the plugs and they all appear to be fine, a light straw colour. The ignition timing is set by strobe at 13 degrees BTDC at idle with the dizzy vacuum pipe disconnected. The distributor is as new, the distributor doctor reconditioned it ( expensive ) this winter and printed out the correct ignition curves against revs and vacuum advance. The fuel flow appears fine, I cleaned the filters recently. The spark plugs are NGK BP6ES, gaps correct and the ignition is Luminition electronic with a Lucas Sports coil. I am at a loss to figure out the problem, should I change the spark plugs, they have been on the engine for a few years ? Any help would as usual be much appreciated. Many Thanks Pat
  12. Thanks Paul, thats really clever and clear and a nice job. Thanks. Pat
  13. Thanks Paul, nice job. I also like the cure for a sloppy accelerator cable which had bugged me for ages. Regards, Pat
  14. Thanks Pete, that is a really neat installation, I will have a look on e bay to see if there are any similar manifolds. Regards Pat
  15. Thanks Paul, what a clever fix, did the 5/8" bolt come as a hollow bolt or did you have to drill it out and then drill side holes for the banjoes? Many Thanks. Pat
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