Hi all, As I mentioned in a previous post I have just received my newMk 3 cams....OR HAVE I ? I went for the Mk111 to minimise modification to the bike, while fitting the cams I noticed that when the cam was rotated, the exhaust cam lobe made contact with the Exhaust valve lifter arm ET69FAS, yet the original cam (even though worn) did not, I then took measurement from bottom of base circle to top of lobe on the cam and it is .050" (50 thou) larger than the original. (in my very humble opinion I don't think a worn cam could be missing 50 thou off the lobe...assuming base circle has little wear)
I contacted the Gent I purchased them from (New, from a reputable seller/manufacturer, marked as a Mk3) and asked if they may have been a Mk2 and incorrectly marked, the response was that I should file/grind a little off the ET69FAS to give clearance, he also first told me to adjust the Valve lifter and give it a little more slack, again in my opinion I would think that it shouldn't matter the position of the lifter, it should never be possible for it to make contact with the cam?
Am I missing something here? Is this a common occurrence?
Kevin
I contacted the Gent I purchased them from (New, from a reputable seller/manufacturer, marked as a Mk3) and asked if they may have been a Mk2 and incorrectly marked, the response was that I should file/grind a little off the ET69FAS to give clearance, he also first told me to adjust the Valve lifter and give it a little more slack, again in my opinion I would think that it shouldn't matter the position of the lifter, it should never be possible for it to make contact with the cam?
Am I missing something here? Is this a common occurrence?
Kevin