just did mine
the intake seal will push down and around the valve guide and should stay down on there,but might ride up some
the umbrella oil seal for the exhast pushes down as far as the guide,as the valve opens the valve slides down in the seal,the seal will stay at the spot on the stem and will be fine
the 2 seals look diff from one another,the more square seal is for the intake and the mushroon looking one will be the exhast
it took care of my start up smoke on mine,but the valve guides were good shape
a piece of rope 2.5 foot long in the sparkplug hole and a KD tool spring compreser and was about 2 hrs...well 3-4 hrs...I had a few
doin it
Bsharp is correct, the intake one seals and should stay down on the guide so it does not suck oil/air
the exhast umbrella seal will ride up on the stem to allow a slight amout of oil on the hot exhast stem/guide to oil/cool the stem
but sheilds it from most of the oil splash,as long as the valve guide is good the oil will not make it to the combustion chamber