oppps during a warm up run engine thingy like you do when a car is stood for a while the Camparse engine went foopar .
on idle i noticed a slight tapping and after a few clear out revs i give it a bigun revvs like i normaly do . but this time on hitting high revs BBRRRRRRCLATTER CLATTTER
oppps i thought that dont sound right to me it sounded like a dropped valve, so i thought it's eather popped the collets out or snaped the top of the valve off, and on removing the rocker cover i found a strainge problem ....... a valve cap has split in half.... ive neaver seen one split so clean (i wounder if anyone else has had a valve cap split in half)
weard thing is it's an exhaust valve cap that has gone not an inlet. my exhaust valve seat up is totaly std with std springs, my inlets are twin springs and i was expecting to have one of the inlets go due to the twin valve springs
but hay ho neaver mind ive got an unskimmed head that just needs a valve guide and seat .
high ho high ho its off to work we go and build a realy good head more power