First start after 3300 sitting for 12 months

·         Adam Anderson

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I have a Jabiru 3300 that has been sitting in the mechanic's shop for 12 months while work was performed to the airframe. It wasnt expected to take as long as it has, but it dragged on as other urgent requests got in front of it. For this reason nothing in particular was done to the engine before this period. Is there anything recommended service wise for this engine other than fresh fuel?

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·         Doug Smith

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Hi Adam,
It depends where the engine is and how it was stored... If it was somewhere with reasonable levels of humidity and the engine wasn't capped then there's a good chance there will be some rust in the engine bores.

The Fastest way to check is to turn the engine over on the prop, but if there's rust that method can clag (or even break) the piston rings. A borescope down the plug holes or popping a head or 2 off for a look is a much better idea.

Otherwise, fresh fuel is a good idea. Assuming it looks ok I'd start the engine with the oil that's in it, warm it up and then think about changing it for fresh... but again it depends where the engine was and how much moisture etc it's likely that the oil has absorbed in that time.

You'll want to give it a good looking-over too, to make sure there's no insect nests in bad places or anything like that.

Regards,
Doug.

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·         Doug Smith

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Hi Adam,
It depends where the engine is and how it was stored... If it was somewhere with reasonable levels of humidity and the engine wasn't capped then there's a good chance there will be some rust in the engine bores.

The Fastest way to check is to turn the engine over on the prop, but if there's rust that method can clag (or even break) the piston rings. A borescope down the plug holes or popping a head or 2 off for a look is a much better idea.

Otherwise, fresh fuel is a good idea. Assuming it looks ok I'd start the engine with the oil that's in it, warm it up and then think about changing it for fresh... but again it depends where the engine was and how much moisture etc it's likely that the oil has absorbed in that time.

You'll want to give it a good looking-over too, to make sure there's no insect nests in bad places or anything like that.

Regards,
Doug.