thank you so much guys! is it a big job to replace the tach? Theres no mechanic out here. Can you point me to any useful resources on how to replace the tach ? Thanks again!
Plane is a 1946 cessna 140. Started it up tonight and everything worked good, when I when to pull the throttle back to allow the oil pressure to climb, the rpm kept climbing to 1500 and stayed there. I pulled the throttle all the way back and the tacometer still showed 1000rpm when it was...