Did it exactly like this. 4 inlet guides i could pull down and remove the top retainer clip w/o removing the spring retainer. 5 i had to remove the spring tetainer, than push up the valve, reach in with a thin, but beefy enough screwdriver and force the guides down to be able to pull the guide retainer. Then i had to force everything up with a crow-bar from under the spring (protecting the block with a piece of wood / bronze). 3 i had to chizzle the guides into little pieces and remove through the spring,