I want to start this post out with a service bulletin or ‘SB’. Stop rolling your eyes, this one is actually worth looking at!
If you’ve got a Lycoming, click here for SB240W. If you have a Continental click here for SB97-6B.
This is what all engine shops should follow when determining what parts to include in an engine overhaul and furthermore, which of those parts can be repaired vs replaced with new. Making sure that your shop follows these guidelines is a good idea.
So here are the major components that are typically included in a piston engine overhaul:
- Cylinders
- Camshaft
- Crankcase
- Crankshaft
- Magnetos
- Starter
- Oil cooler and pump
- Fuel injection system
- Spark plugs
- Ignition harness
You should ask your shop what components they quoted for overhaul vs new replacements as this can have a huge impact on price. But in the end, you get to decide whether most of these components should be overhauled or new replacement parts. Your shop can give you the best advice on that front.
