Might be a stupid question, but here goes; I have 6 O-470L cylinders, cores, unknown time and condition. Would it be worth overhauling them and selling them? Any market for anything like that?

Thanks!

In between the current lead times, and reports of poor quality of new cylinders,
along with follow-on AD's (like the 500 hour drop dead AD on the 520 cylinders)...
I would say yes, there is a market.

hotrod180 wrote:In between the current lead times, and reports of poor quality of new cylinders,
along with follow-on AD's (like the 500 hour drop dead AD on the 520 cylinders)...
I would say yes, there is a market.

Do you have a link for the 520 cylinder AD or the AD number. Was not aware of that and want to read up for my XP470 (PPonk)

I think rather than paying to have them overhauled, I'd simply put them up for sale as is. THat way, the buyer can choose the shop and what all he wants done, and can shop for pricing.

If you have them overhauled, my guess is you're going to have trouble getting your money back.....including the value of the cylinders.

Just sell them, I'll bet there are buyers out there.

MTV

corefile wrote:

hotrod180 wrote:In between the current lead times, and reports of poor quality of new cylinders,
along with follow-on AD's (like the 500 hour drop dead AD on the 520 cylinders)...
I would say yes, there is a market.

Do you have a link for the 520 cylinder AD or the AD number. Was not aware of that and want to read up for my XP470 (PPonk)

There is a few different ones. 2009-16-03 for TCM cylinders, 2014-05-29 for superior cylinders, and 2016-16-12 for ECI cylinders. None of them are drop dead at 500hrs though, and I’ve not heard of another one that is. I'd like to see it if there is though!

I did a little research, my memory said a 500 hour drop dead timeline but I guess I was wrong.
Here's an article about the ECI cylinder AD:

https://www.avweb.com/ownership/eci-cyl ... t-sept-15/

and a clip from that article:

"There is a range of application for the AD, but in general no one with the cylinders will be able to fly more than 320 hours before they have to be replaced and no one will be able get more than 1,160 hours out of them. The cylinders cannot be overhauled or installed in other engines. They have to be scrapped."

FWIW here's a BCP discussion from back in 2016, when this AD first came out:

https://backcountrypilot.org/forum/eci- ... 2016-19688

mtv wrote:I think rather than paying to have them overhauled, I'd simply put them up for sale as is. THat way, the buyer can choose the shop and what all he wants done, and can shop for pricing. If you have them overhauled, my guess is you're going to have trouble getting your money back.....including the value of the cylinders. ....

I agree with Mike.

I am looking for a couple of 0470l cylinders for the right price.