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master orfice tool t.c.m.p/n646953 cyl.leak check

2001-10-04 23:14:17

master orfice tool t.c.m.p/n646953 cyl.leak check

<HTML>i read where this tool is needed for any A&P TO PERFORM a 100 hr. inspection on any T.C.M.engine,or annual. How can I contact T.C.M. to order one of these. any help will be appreciated. willy owens.</HTML>

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2001-10-05 12:12:19

Re: master orfice tool t.c.m.p/n646953 cyl.leak check

<HTML>Don't worry about this. Any qualified A&P mechanic will own or have access to a calibrated differential compression test set (which is what that fancy name and part number is all about). The special attention given the "master" orifice tool is in relation to a special procedure undertaken when cylinders fall into the lower regimes of acceptable compression. It's another case of "Measure it with a micrometer, ...next mark it with a grease pencil, ...then cut it with a hatchet" mentality. ;Þ</HTML>

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2001-10-06 14:12:37

Re: master orfice tool t.c.m.p/n646953 cyl.leak check

<HTML>George; Thanks for the info. I figured as much. while i'm not a hardcore 65/80 advocate. I do enough differential leak checks to cause. me to want to be on top of any changes in the procedure. I hav'nt read any service bulletins from T.C.M.on this subject either. Best Regards Willy Owens.</HTML>

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2001-10-06 20:33:58

Re: master orfice tool t.c.m.p/n646953 cyl.leak check

<HTML>Service Information and letters may be obtained/downloaded at http://www.tcmlink.com

The Service bulletin M84-15 (which superceded M76-18 Rev 1) is located there.</HTML>