Time (years) SMOA

Paul... looks like your going to get the best price at $15K...

as stated before.. you could be lucky with the engine.. or not..
set up a deposit.. offer a free oil change and go get it checked
if it comes back clean... that's good for today..

as an owner.. you will always need to be prepared for a complete engine
overhaul

BT

"Paul Folbrecht" wrote in message
k.net...
I'm sure you will get responses saying not to worry. Those will be from
others who have similar numbers and have not (yet) had a problem. Yes.
Engines can be run well past TBO IF they are "overflown". For example,
an engine run for 100 hours per MONTH (a.k.a. "trainer") can get 3000+
hours before going downhill. The one in question got 40 hours a YEAR.

I suspect the reason some consider a plane like this is because it is
close by, or because they don't have the cash to get one with better
numbers.

In part it's the former. Not the latter. He wants $15K for this '71
150 with 6200TT. And my mechanic says the first annual will run $4K -
$5K. That's how I got him down from the $18-$19K range he was in.

If the former, I would keep looking. If the latter, they are likely to
Trouble is, if you try to deduct the price of a major overhaul, chances
are the seller will balk. And, someone with the cash who does not know
enough or care enough about the engine times will buy it up from under
you.

Deducting the price of a major puts the airplane at $2,000!!


Good Luck,
Mike


Paul Folbrecht wrote:

The 150 I had pre-buy'ed today has an O-200 with 940 SMOA but this
overhaul happened 24 years ago. Mechanic has pointed out that
Continental also specifies a time limit of 12 years on overhaul and
thus this engine is technically runout.

Do I have much cause for concern?? I know engines are quite regularly
run well beyond that time interval. After all, to make that 1800
hours in 12 years you have to fly 150 hours/year.

Compression is good (all in the 70s) but there is no oil analysis
available. Engine sounds just fine and also has good oil pressure.

I basically need to make a decision on this quickly and am stuck on
this issue. I am leaning heavily towards buying it. My mechanic has
said it is pretty unlikely that this time factor will result in
serious problems now, but that there's really just no way to tell
without an oil analysis or by watching oil consumption.




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