Lycoming reamer

[Michael Wellenzohn]

Hi,

I was wondering what alternative reamer you used to clean the exhaust guide. The Lycoming ones I see on ACS cost all in the 800+ area.
Regards
Mike

 

[dpansier]

Take a look here:

http://www.mcfarlaneaviation.com/Details.aspx?Article=542

 

[az_gila]

Take a look here:

http://www.mcfarlaneaviation.com/Details.aspx?Article=542

Their web page note is incorrect -

Note: Reference Lycoming SSP-1776 and SSP-578 and the appropriate overhaul manual to determine which specific valve guide sizes you have and the required reamer size before purchasing the necessary cleaning reamer. Lycoming Mandatory Service Bulletin No. 388C required exhaust valve guide cleaning every 300 hours for helicopter engines and every 400 hours for all other engines. McFarlane valve guide reamers are for cleaning carbon build-up only and must not be used for finish reaming of new valve guides.

SB 338C only requires checking, not reaming at the intervals specified, and starting at 1000 hrs if your head is stamped with a C in a circle.

 

[Michael Wellenzohn]

Thank you all, I just love the amount of knowledge and turnaround time of answers in this forum.

Regards
Mike