Accessory overhaul is typically not included in an overhaul quote, but can be added as an option. Some accessories to consider overhauling or replacing are:
- Alternator or generator
- Exhaust manifolds
- Electrical Fuel pump (engine driven fuel pump should be taken care of in overhaul)
- Hydraulic pump
- Propeller
- Propeller governor
- Turbos
- Vacuum pump
- Engine baffles
An overhaul is a great opportunity to replace or upgrade accessories since everything is already off the engine and your airplane is out of service.
Usually, people with a constant speed propeller will have the governor overhauled or at least flushed. If not, all of its accumulated dirt and junk will flow around into your oil system and through your freshly overhauled engine. The same is true for a turbo. It’s like taking a shower after working out at the gym and then put on your sweaty clothes. Just don’t…
