Then I`ll pull both heads and check everything on both heads.
I also removed the top tins from both rocker covers on frt.head..
I can`t detect any endplay on rocker shafts and frt.rocker is very stiff .I have to pry it with screwdriver to make it move up and down away from spring retainer.
I know that rubber seal gives it some resistance ,but this is extremely tight.
Pushrods are not bent ,and rollers on tappets are good.
Maybe this caused a valve to stick ? Also maybe valve too tight in guide?
Any ideas ?
Thanks in advance.