I have a Luscombe with a Continental O-200 engine. The #4 cylinder is running cold at idle, does anyone have an idea why? The other three cylinders are running fine.
Some extra information:
- The engine has only 300hrs SMOH but it hasn't run for two years and it's just had some maintenance work done (carb, filters, plugs)
- Cylinder #4 is cool to the touch, the others are too hot to touch
- A mag check seems normal (expected RPM drop on both mags)
- A compression check seems normal (76/80 on #4 cylinder)