Thunderbolt Cylinder Fins

Hi,

Kyle has a thread regarding cylinder fin prep prior to installation of baffling (https://vansairforce.net/community/showthread.php?t=215258).

Does anyone know if this is handled at the factory by Lyc for Thunderbolt engines?

Cheers!
Mike

I don't know if Lycoming spells this out specifically, but my thunderbolt is pretty clean and I don't feel the need to floss between the fins. I ponied up for custom paint. Don't know if that got me any extra prep or not.

Here's a quick pic.

MJarreau said:

Hi,

Kyle has a thread regarding cylinder fin prep prior to installation of baffling (https://vansairforce.net/community/showthread.php?t=215258).

Does anyone know if this is handled at the factory by Lyc for Thunderbolt engines?

Cheers!
Mike

Click to expand...

For what it is worth, the new lycoming cylinders on my -10 needed cleanup. Some of the gaps needed considerable work.

But I guess the point is: Take a look and clean the gaps up if you need to. If they are clean and full depth, there’s no need.

Thanks

Kyle,

I didn't want to hijack your thread, thus this one. I'm hoping that because of the custom nature - and additional cost - of the Thunderbolt, plus the paint, this would be part of the service Lyc would provide.

Thank you all, for your thoughts!

Cheers,
Mike