Tweet
when installing the new bee-hive spring kit onto a 604 engine the burrs that are on the valves surroundng the keeper groove must be removed.
this is most apparent on the intake valve but the exhaust valve should also be inspected
if the burrs are not removed the new machined style keeper will not seat properly and may fail
although this was always recommended it was not nearly as critical with the old stamped steel version as they were a much looser fit
do your best to not contaminate the oil, head, or valve guide with the material that is removed from the deburing process---use a paper towel to catch fileings
since the valve seal must be removed to replace the locating shim it is recommended to leave the seal on while deburing the keeper groove area of the valve this will act as final shield for debris.
YOU CAN FILE TOO MUCH------if you are not familar with this process, get someone else to do it.
Brad
this is most apparent on the intake valve but the exhaust valve should also be inspected
if the burrs are not removed the new machined style keeper will not seat properly and may fail
although this was always recommended it was not nearly as critical with the old stamped steel version as they were a much looser fit
do your best to not contaminate the oil, head, or valve guide with the material that is removed from the deburing process---use a paper towel to catch fileings
since the valve seal must be removed to replace the locating shim it is recommended to leave the seal on while deburing the keeper groove area of the valve this will act as final shield for debris.
YOU CAN FILE TOO MUCH------if you are not familar with this process, get someone else to do it.
Brad
Comment