Brian, Following is from a 1970 C-150 Owner's Manual.
Oil pressure 10 psi - red line 30-60 psi - green arc 100 psi - red line Oil temp: Values not defined for green arc 225 F - red line Tach: Sea level 2000-2550 - inner green arc 5000 ft 2000-2650 - middle green arc 10000 ft 2000-2750 - outer green arc max allowable 2750 - red line CHT & EGT not mentioned. Ken Jones, kenbjo...@cinci.rr.com Sharonville, OH N5834, aka The Porkopolis Flying Pig ----- Original Message ----- From: "Brian Kraut" <brian.kr...@engalt.com> >I have been trying with no luck to find the correct engine instrument > markings to use on an O-200. I know the oil temp and pressure and CHT red > lines from the service manual, but I don't know where to start and end the > yellow and green arcs, actually it has been a while since I have flown a > powered plane and I can't remember if I need yellow arcs.
