I have a 1951 Nash Statesman with the Nash Six 184 flathead. Facing engine from front left side has compartment on side of engine that had 3 bolts holding cover in place. under plate are 2 gears that the shaft of one obviously runs off cam shaft. Do these gears have anything to do with the distributor and the timing? Thanks for any info. My car ran perfectly until I stupidly removed the cap and the gears fell out.