New cylinders

Which would you choose, and why?

  • Lycoming

    Votes: 12 75.0%
  • Millenium

    Votes: 2 12.5%
  • other

    Votes: 2 12.5%

  • Total voters
    16
  • Poll closed .

Salty

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Salty
So, I've decided to put all new cylinders on my O-360 for it's overhaul. The old ones are ok, but the cost difference between overhaul and all new is close enough I'd rather reset them all now during overhaul.

Cost difference is roughly $800 cheaper for the millenniums (about $200 per cylinder).
 
I've had good service from my Cessna's Millenniums. I had an equally good experience with nickel Titans on an 0-320. Superior had an engine option that suited me so I bought a complete engine from them rather than Lycoming. I'm a fan of aftermarket cylinders.
 
Cost difference is roughly $800 cheaper for the millenniums (about $200 per cylinder).

Make sure you're comparing apples to apples. The aftermarket cylinders do not contain the same components as the OEMs do. Last I checked the price delta per cylinder was much smaller than that, when you actually compared the same components.

Due to the lack of difference in cost, and there appear to be more ADs affecting aftermarket cylinders, I'm a fan of using Lycoming.
 
Make sure you're comparing apples to apples. The aftermarket cylinders do not contain the same components as the OEMs do. Last I checked the price delta per cylinder was much smaller than that, when you actually compared the same components.

Due to the lack of difference in cost, and there appear to be more ADs affecting aftermarket cylinders, I'm a fan of using Lycoming.
That's true. I believe the Millenium's don't come with rocker arms or piston pin. I'm not certain if the Lycomings do or not.
 
I don't think any of them come with rocker arms.
 
That's true. I believe the Millenium's don't come with rocker arms or piston pin. I'm not certain if the Lycomings do or not.

The Milleniums come with a rocker shaft, but no piston pin or plugs. The Lycomings come with piston pin, plugs, but no rocker shaft. That's what I recall from about a year ago, from the last engine I overhauled.

I want to say that the price difference between cylinder kits once all the parts were collected was $50ish per cylinder. That amounts to nearly nothing in the final cost of overhauling the engine.
 
I know the ECi Titans I got for my O-320 came with ringed piston with pin, valves with springs and the rocker shaft and gaskets. I didn't get rocker arms and didn't expect to. I was quite pleased with the cylinders and had no issues. I looked at the factory cylinders but they didn't have a nickel option and were about $200 more per jug. They didn't come with any more parts than the ECi jugs did.

Frank
 
I know the ECi Titans I got for my O-320 came with ringed piston with pin, valves with springs and the rocker shaft and gaskets. I didn't get rocker arms and didn't expect to. I was quite pleased with the cylinders and had no issues. I looked at the factory cylinders but they didn't have a nickel option and were about $200 more per jug. They didn't come with any more parts than the ECi jugs did.

Frank
somehow "other" got dropped from the original poll. I added it now
 
I've had good service from my Cessna's Millenniums. I had an equally good experience with nickel Titans on an 0-320. Superior had an engine option that suited me so I bought a complete engine from them rather than Lycoming. I'm a fan of aftermarket cylinders.

Millenniums are made by Superior, and are the only after market cylinders now available, ECI is no longer in business, Chinese bought them out and shut them down because they also own Lycoming and TCM.
Noe there is no after market cylinder that has a exhaust valve rotator.
and all cylinders have nearly doubled in price in the last 5 years.
no cylinders come with rocker arms.
 
somehow "other" got dropped from the original poll. I added it now
Why add it? the only other option is rebuilt, the options you have are TCM, Lycoming, and Superior
 
ECI was purchased by Continental and subsequently all Continental cylinder production moved to San Antonio. They still produce PMAd replacement cylinders for Lycomings in through-hardened steel and nickel bores. They also still produce experimental Titan engines.
 
Millenniums are made by Superior, and are the only after market cylinders now available, ECI is no longer in business, Chinese bought them out and shut them down because they also own Lycoming and TCM.
Noe there is no after market cylinder that has a exhaust valve rotator.
and all cylinders have nearly doubled in price in the last 5 years.
no cylinders come with rocker arms.
Because, unlike you ;), I don't know what I don't know.
 
Millenniums are made by Superior, and are the only after market cylinders now available, ECI is no longer in business, Chinese bought them out and shut them down because they also own Lycoming and TCM.
...

The Chinese do NOT own Lycoming Tom.
 
So. your saying TCM cylinders are ECI's, if so, that's good news.

But that is not what my supplier says
http://www.aircraft-specialties.com/titan-cylinder-complete-assy-steel-tist61-1dca/

Here is where you can get the CMI version of the Titans. My understanding is that CMI bought ECI out for their PMA Lycoming parts not to get them off the market but so they could offer the products themselves.

http://aeroinstock.com/air-boss-cylinder-assemblies-lycoming-engines/
 
Continental ditched their nitrided barrels and use ECI's through-hardened barrels. That's a good thing for Continental owners. No more convincing yourselves that 50/80 compressions are good. ;)

Superior uses through-hardened barrels, too, by the way.
 
The Chinese do NOT own Lycoming Tom.

You are correct. That is at least the second time that I have seen that falsehood on POA. Not sure why it persists. I'm even thinking it might have been posted by the same person the last time. Lycoming is owned by AVCO who is owned by Textron. Last I checked, Textron was still American.

Edit: Here is the last time he posted that BS. See post 12.
 
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Due to the lack of difference in cost, and there appear to be more ADs affecting aftermarket cylinders, I'm a fan of using Lycoming.
When my engine was overhauled I went with new Lycoming cylinder kits for this very reason. My mechanic said there were no ADs on the Lycoming cylinders. I have 200 hours on my new engine and I have been happy with my choice.
 
Do you see anything about 0-200/0-300 cylinders in those three links?

Open the third link (Aviall) and turn the page by tapping the arrow on the right. 0-300 cylinders are in there.
 
You are correct. That is at least the second time that I have seen that falsehood on POA. Not sure why it persists. I'm even thinking it might have been posted by the same person the last time. Lycoming is owned by AVCO who is owned by Textron. Last I checked, Textron was still American.

Edit: Here is the last time he posted that BS. See post 12.

Yes. Textron, which also owns Cessna, Beech and Bell Helicopters is a NYSE listed company.

I'm sure there's nothing to prevent someone from China from buying some stock, but its not a Chinese owned company for sure.
 
On a Lycoming I'd buy OEM Lycoming. I've never seen a factory new Lycoming cylinder not make it to TBO trouble-free. Can't say the same at all about aftermarket cylinders.

China does NOT own Lycoming.
 
On a Lycoming I'd buy OEM Lycoming. I've never seen a factory new Lycoming cylinder not make it to TBO trouble-free. Can't say the same at all about aftermarket cylinders.

China does NOT own Lycoming.
Ya but....you and I don't fly Lycoming engines. o_O
 
Continental San Antonio (was ECI/Titan) was closed a year or so ago. That manufacturing is now done at Continental's plant in Mobile. I toured the SA plant a couple of years ago.

Based on what I hear at the aviation "water cooler", I would shy away from the ECI/Titan/PMA'd Lyclone parts from Continental.
 
Millenniums are made by Superior, and are the only after market cylinders now available, ECI is no longer in business, Chinese bought them out and shut them down because they also own Lycoming and TCM.
Noe there is no after market cylinder that has a exhaust valve rotator.
and all cylinders have nearly doubled in price in the last 5 years.
no cylinders come with rocker arms.
How do the Chinese own Lycoming? Lycoming is owned by Textron, HQ in Rhode Island.
Also, TCM hasn't been TCM in almost a decade now- it's been just CM. The T part is still a USA company.
 
Anyone have any bad experience with millennium cylinders? I'm torn between then and lycomings
 
Anyone have any bad experience with millennium cylinders? I'm torn between then and lycomings

Somebody will. Others won't. FYI, Barrett Precision Engines (a reputable shop) won't use ECI unless customer requested, but sees Superior and Lycoming cylinders as equally good.
 
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All of our engines have been OH’d with Millenium’s with positive experiences for the most part. Millennium’s are arguably better than Lycoming, but with cylinder prices getting more competitive, AM brands are just marginally cheaper than Lycoming. They all have the same combustion chamber, exhaust and intake ports, etc. Personally, I don’t think you can go wrong with either, but if it were my own aircraft and I was calling the shots, I’d choose Lycoming over AM products.
 
Are cylinders not repairable/overhaul able? Based on what I have read about continental cylinders new from the factory, it seems like there should be better options.
 
Are cylinders not repairable/overhaul able? Based on what I have read about continental cylinders new from the factory, it seems like there should be better options.

Oftentimes repair costs exceed the cost to buy new cylinder kits, and sometimes don't last as long as new kits. That doesn't seem like a particularly desirable spot to be in to me, but some people still elect to go down that path.

With some engines repairing cylinders is your only option. Obviously you have to do what you have to, in order to make the engine useable again.
 
Are cylinders not repairable/overhaul able? Based on what I have read about continental cylinders new from the factory, it seems like there should be better options.
They are depending on their condition. Sometimes it makes sense to repair the existing cylinder and other times it’s just best to get new, but the cylinder barrel can be remachined to restore it back to factory limits. Depends on the situation.
 
Are cylinders not repairable/overhaul able? Based on what I have read about continental cylinders new from the factory, it seems like there should be better options.

The issue is that overhauling a cylinder costs almost as much as a brand new one. So cylinder repairs are waay down from years ago when the OEM's charged outrageous prices for new cylinders.
 
The issue is that overhauling a cylinder costs almost as much as a brand new one. So cylinder repairs are waay down from years ago when the OEM's charged outrageous prices for new cylinders.
If you can do them supervised it isn't that bad.....and you can get a stud exchange with new Nickel for $600. That's a far cry from new costs....if you already have serviceable valves and piston and all the other items.

New is much easier if you're the installer.
 
If you can do them supervised it isn't that bad.....and you can get a stud exchange with new Nickel for $600. That's a far cry from new costs....if you already have serviceable valves and piston and all the other items.

New is much easier if you're the installer.

If you're willing to install a used exhaust valve, piston, etc., used is cheaper. I was thinking in terms of a cylinder rebuild which included a new valve, rings, piston, etc.
 
If you're willing to install a used exhaust valve, piston, etc., used is cheaper. I was thinking in terms of a cylinder rebuild which included a new valve, rings, piston, etc.
I exchanged 3 cylinders with Gibson and was impressed with what came back. New Nickel walls, new guides, and new seats and studs....and freshly painted. Not bad for the price.

You barely can get studs and exhaust port work for that.
 

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