REFLECTOR: Engine builder advice needed

[John Dibble]

Does ECI know you're experimental?  That gives you more options compared 
to certified.

John

On 5/9/2012 7:11 PM, Geoff Gerhardt wrote:
> Hi all,
>
> So, I'm rebuilding my LIO-360.  All the inner bits (case, crank, cam, 
> rods et cetera) were sent to ECI for inspection/rebuild.  I got a call 
> today that they're just about ready to ship everything back but said 
> my cam was rejected for excessive wear on two lobes that could not be 
> polished out.  There was no pitting on the cam or unusual wear marks 
> (my observation before sending it).  Because this is a "LIO" engine, 
> cams are not very popular.  After a cursory phone around, it looks 
> like a new $3600 cam from Lycoming might be my only option.
>
> I've got to call ECI back tomorrow and check on this more, tho.  I 
> don't understand why they can't regrind it - is that not something 
> that's done on aircraft cams?  I see that there are companies 
> (Aircraft Specialty Services) that offer grinding for experimentals - 
> I'm wondering if that might be an option.  I've seen cams a lot worse 
> than the one out be reground (these were for Porsche engines, tho). 
>  Is there an issue about grinding/rehardening a Lycoming cam?
>
> Thanks.
>
> Geoff
>
>
>
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