Originally Posted by JTECHSAFF
i was thinking of the metal rings around the bolt holes, these prevent squash

nope, torque settings prevent squash
they prevent the gasket moving though,,, but thats for the robots,,,, the idiots,,,, sorry mechanics also benifit though
did you also know that some engines have suspect designs to them that seem to make them fail at certain milage,,,, renault clio diesel engines are one of them !
the cam pully needs to be changed at 50k miles as theres a "key" that holds the center in place from free wheeling ,,, they made the centers seperate from the rest of the pully,,, when the tooth fails at 50k miles they diesel engine is FOOKED
strange they design it this way though aint it