Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Hi, yea I can’t figure it out other than the brass was to soft. The old cam is worn a little but not too bad. I purchased the new cam because the new I read was supposed to give you a better idle.

The pushrod tubes have a threaded bottom section that I guess is supposed to screw up far enough to adjust the valves. Won’t screw up far enough on mine. So I pull the rocker box and put one pushrod in at a time, put the cover back on with a couple of screws and adjust the tiny screw on the lifter. They are loctited so you may have to heat them a bit. I’m sure they would twist off easily. A pain but that’s how I do it. I hope this helps. My lifters seem to be not sticking. The old cam still works and not getting the lobes destroyed so idk.