Quote
Quote
I have never understood the mentality of not properly overhauling a high time engine that is already disassembled.



Money Carl. To do all Continental require to qualify for a genuine "Major Overhaul" will cost anyone not able to contribute most of the labor himself at least twice what an IRAN does, perhaps approaching the total value of the plane. I doubt very much if the extra run time to the next overhaul or the increase in potential sale price will compensate. Granted there may be some gain in confidence in the engine, which may or may not be justified!!

Joe 150F

Then again what constitutes "properly" overhauling an engine?

I'm with Carl on this one. On a high time engine (or even mid-time) you'll spend a chunk of money to do the IRAN and have nothing to show for it in the way of capital improvement. If you need a top sometime in the future before TBO you will have spent almost all of the cost of the overhaul and not bought any additional TBO hours. Best just to bite the bullet and spend the additional expense to call it an overhaul. If the engine was recently overhauled, however, then the IRAN makes more economic sense.

Tim
'76 C-150M, San Antonio