Harmonic balancer 340

If you have a new Felpro gasaket set, look for a fat felt ring. It is supposed to go inside that cavity and fits round the damper hub, and is there to help absorb any oil that seeps past the seal.

Glad it was that easy!

BTW, notice that the ribber ring between the damper hub and outer ring is cracked in several places. That may reduce the damper's effectiveness. The damper works by absorbing certain vibrations from the crank into that rubber ring. When it gets old and hard, it is less effective. Plus the glue that holds the outer ring and rubber ring onto the hub dries out.

You may be a good candidate for a new damper. Professional Products makes an affordable one for stock replacement. We replaced our '68 273 damper just on principle as we want a long term reliable street engine. The old one was usable but had the rubber ring cracked and hard.