The spacer on my engine is relieved on one side for the cam nose filet. It was installed the right way..
The spacer is .005 thicker than the retainer...The surface on the back of the gear contacting the retainer seems flat and true...The retainer is not bent...
Looking closely I see the ends of the aluminum gear teeth are slightly mushed out suggesting the cam was walking back and forth...
new gear set is coming...


70 Triumph 650 cc ECTA current record holder