Re: Ticking Noise in 1953 327 eight

Posted by Ross On 2010/11/12 4:41:40

Pumps, turbines, and other high class rotating machinery that don't have space for a labyrinth seal often use a face seal like Packard used on the straight eights. This gives a static seal on the shaft itself, and a hydrodynamic seal on the housing. The seal rotates with the shaft and is spring loaded against the housing.

The only problem I encounter with the Packard system is that most of the new cork sealing rings that come with gasket sets fit too snugly on the hub of the damper and won't slide forward under the available spring pressure to contact the timing chain cover. A couple minutes with some rolled-up sandpaper takes care of this. I then glue the ring to the old holder, grease it up and install.

I've installed several dozen with no problem.

A mixture of components from pre and post 51 cam drives, ie wide and narrow timing chain components might leave the seal hanging in midair, but you can look in and see that before the damper is slid on.