Will,
>a member of my local
>car-guy support group has cautioned me not to keep the engine at constant
>RPMs for a long time. He says its good to vary the RPMs. Why would this be
>true? Rings seat better with RPM changes? Or is he just passing oil?
When I rebuilt my Pontiac 326 in 1980 I was told to run for 20 min's
upon initial startup at a constant RPM to get the cam and lifters to
wear in correctly. Then I was supposed to do low speed (RPM) full
throttle acceleration in high gear to set the main bearings. I do not
know if this is correct or not but I did it and the car gave me great
service. Can anyone else confirm this? I don't Know about seating the rings.
- -Mark = =o&o
|