Home › Forum › Ask A Member › Rubber plugs on each side of air chamber on 1955 Johnson CD-12 Purpose?” › Reply To: Rubber plugs on each side of air chamber on 1955 Johnson CD-12 Purpose?”
I am sorry to have begun an inaccurate post that now I know was a misconception on my part. I reexamined the plug which are not rubber but plastic that were probably made in China for a purpose that I do not know. I am guessing that a prior owner of the CD-12 Johnson simply put the plugs into the air chamber holes to preclude “dirtdobbers” from building mud nests from Georgia red clay. But some valued information surfaced in the confusion that I had wrought in the information on rubber bumpers inside the cowl made from tire stems. I only have one star bumper remaining on my motor.
I am amazed by the knowledge of the folks on this forum and by the engineers who designed and built these antique motors.
Too bad there is no AOMCI chapter in Georgia.