>Here then is the quandry. Should I purchase used cylinders (2400.00 >CDN $ for all 4) and polish them up and put new rings in or buy new ones >entirely? What is the general consensus on this issue?
I've said this before and I'll keep saying it until I die. Used cylinders are the preverbial pig in a poke unless you know first hand that they are no more than first run cylinders. Most cylinders do not last through 5 or 6 thousand hours. that means that if they've been to more than one TBO, they probably WON'T make it to the next one. A welded cylinder is like a rusty car with a fresh coat of paint. It WILL crack again, probably within the next several hundred hours. If you have a set of cylinders that you know the history on, know that have never been welded, and have 2000 or fewer hours, then by all means go ahead and re-use them. If you don't know where they've been then I wouldn't use them, unless they're free. For another $100 or so you can overhaul them and you're only out $400. Otherwise, go with new. You should be able to find them for around $700 US, try A.E.R.O or ECI, and fly worry free for 1800 hours. Then overhaul them and go again. (Your mileage may vary). JC
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