My Annual

Check the calibrations on that compression gage (assuming you are
loooking for 60/80 psi?). Fly the airplane for 10 hours and check the
compression on that cylinder again. Lots of times our 172M wouldn't
quite make compression & but then it would 10 hours later on a recheck.

This assumes you don't have a problem with excessive oil consumption or
fouling.

wrote:
. . .
Any comments or suggestions as to which course of action is better?

I've always felt that repairing my cylinder was the way to go, but I'm not sure
I'm right. I had to do one of the cylinders in my old 150 twice in less than two
hundred hours time. I've just always felt uneasy about swapping mine for someone
else's repair job.

These days I might opt for new from an outfit like Superior.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.

After 5 years of Mooney ownership my average bill for annual is $7000.
The inspection fee runs about $2500 itself.

-Robert

The delta between new and overhauled is very close if you need an
exhaust valve. Unless the cylinder has 50 hours or less, you need a new
piston. You always need new rings and gaskets. If your exhaust valve is
leaking, chances are it will not "seat" in 10-20 more hours. So it is
likely you will need a new one. Add it all up and you are within a
couple of hundred bucks of a sparkling new one.

I have learned my lesson on overhauled cylinders. Since I run P10s
(overbored .010 oversized), I am always getting "first run" cylinders
(the shop won't ground over anything other than first run). I have still
had problems. Non P10s could have several runs on them. Too much of a
crap shoot for me.

Repairing your jugs requires way too much down time. I want to have the
new one in hand before we remove bolt 1. That way, it is a simple 4 hour
swap with no surprises.

Good Luck,
Mike


I've always felt that repairing my cylinder was the way to go, but I'm
not sure I'm right. I had to do one of the cylinders in my old 150 twice
in less than two hundred hours time. I've just always felt uneasy about
swapping mine for someone else's repair job.

These days I might opt for new from an outfit like Superior.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.

Wow! Is this what others are paying for annuals? I haven't owned a plane for
in excess of 10 years now, but my 182 was between $1,000 - $1,500, for what
I considered a pretty thourough annual. I could have had them done for less.

Has this cost really gone up that much? I know the Mooney is retractable,
etc., but still. How much would I be paying for my 182 if I still had it?

Harvey

"Robert M. Gary" wrote in message
oups.com...
After 5 years of Mooney ownership my average bill for annual is $7000.
The inspection fee runs about $2500 itself.

-Robert