fblue73 Posted May 6, 2011 Report Share Posted May 6, 2011 Yesterday, I finally got around to treating my 73 with a new point set, condenser, wires and plugs...way overdue; however, I replaced the autolites that were in there from the PO with Champion RN12Y---I see where others here have had poor results with the Champions.....I find the car to be running a bit rough at low RPMs and a bit of hesitation now....Is there a consensus on what is the best plug for this application? Quote Link to post Share on other sites
Peter Cobbold Posted May 6, 2011 Report Share Posted May 6, 2011 The Champion N12 plug will run a little hotter than standard spec N9 , so plug fouling is unlikely to give your symptoms. I would suspect the new points - the plastic cam follower can wear very rapidly in first hundred miles, especially if not lubricated with smidgeon of grease: they close up and retard the timimg. Quote Link to post Share on other sites
jemgee Posted May 6, 2011 Report Share Posted May 6, 2011 Seem to remember in the old days when you bought new points (always a last step after dressing the pits and pimples off on a carborundum stone) they used to include a small plastic tit containing a dab of High melting point grease. Mind you the cam follower was a light brown composition material not the tough plastic used these days. Quote Link to post Share on other sites
Guest ntc Posted May 6, 2011 Report Share Posted May 6, 2011 Seem to remember in the old days when you bought new points (always a last step after dressing the pits and pimples off on a carborundum stone) they used to include a small plastic tit containing a dab of High melting point grease. Mind you the cam follower was a light brown composition material not the tough plastic used these days. Yep the main problem with points is out with the feeler's (Wrong) set by dwell Quote Link to post Share on other sites
Tom Fremont Posted May 6, 2011 Report Share Posted May 6, 2011 (edited) Hi fblue73, The Champion N12Y correlates to the Autolite 55 if I recall, good for U.S. carb cars. I use the NGK BP7ES which correlates to the cooler Champion N9Y with my P.I. cam and DCOEs; current set has 15,000 miles without cleaning or re-gapping so far. I also use Standard " Blue Streak " points, and though I have a lifetime supply they're out of production now. These have a felt lubricator for the cam and a ventilated stator for cooling. I also use their lubricant when installing; a small tube will last a lifetime. These are good for 10,000+ miles without service. I also gap the plugs to 0.030" vs. the std. 0.025" and use a Lucas Sport coil. Low advance 7 degree distributor too. It all works so well I can't possibly be sold on an electronic "upgrade" BTW, is your TR6 set up with the Lucas P.I. system? If so I may have seen it in the flesh at local shows Edited May 6, 2011 by Tom Fremont Quote Link to post Share on other sites
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