Herb, I was just wondering if the small air governor on the firewall had provision to clean out, maybe where the allen head screws were located? I did not bother it, because for $10.00 bucks they can be bought reasonable. But from the shutter filter, which mine is located on the firewall beside the air governor, found the long airline defective with substantial size hole leading to the shutterstat. So last night both air hoses came off and i'm ready to buy new ones. I also took off the shutter cylinder and have cleaned it up, got off all paint, dirt and am ready to repaint it back to original color and leave the other parts their natural finish with a coat of clear over the top. I will assemble tonight when I get off from work here. And also check it for leaks by submerging it into a bath of water with 90 lbs. of air following. I'll keep ya'll informed and hopefully take some pictures along the way. Whats going to be funny to me is, the rest of the engine bay is old and grimmy looking and will have one part that will look new, which will be the shutter cylinder unit. Thanks for the replys guys! mike