Top End

[hawaiiJim]

Looking for experience installing 4 new Superior API Millinnium cylinders on A 65. Any thoughts, ideas, instruction appreciated. Aloha Jim

[Acroeric]

Jim- The new cylinders for the A65 are terribly expensive. Are yours so bad that you can not have them overhauled? Seems like the new ones are around $4000 for the set.

[alwaysoar]

I am no expert in this, but if you were to put new millenium cylinders on your engine, which I recall from a previous posting is fairly high time, you will have a lot of money in a top overhaul and still have a high time engine. Can't you pull your jugs and have them checked out? Rings and valves are a comparatively cheap fix. I just raised the compression on one of my cylinders from 30 to 70+ by knocking the carbon off the exhaust valve. You might be able to get used yellow tagged cylinders from Wentworth pretty cheap, and then you can fly it a while and plan for a major down the road, or an exchange. I've owned five 65-horse ragwings, and there was always a reasonably inexpensive fix to cylinder problems short of spending thousands on Milleniums. Hope my 2-cents helps.

[Garry Crookham]

Hi Jim
We install Millennium cylinders on almost every engine we overhaul (3 to 4 a month) and have been very pleased with them. I've never installed the A65 Millenniums but have installed them on C85 and 0200s as well as a large number on 470/520/550 engines. The only caution I would mention is to make sure the dry valve clearance (valve stem to rocker clearance with the lifter deflated) is checked and is in spec. The geometry of the Millennium cylinder in the rocker area appears to be a bit different than the Continental cylinder and you might have to juggle some push rods to obtain the correct clearance.

Garry Crookham
N5112M
Tulsa

[NY86]

Garry:

Do you recall anything about early Millenniums having oil control problems when used with intake rockers with oil squirters?

[Garry Crookham]

John:

I'm not familiar with that problem.....the only problem with early Millenniums that I'm aware of was with barrell wear.
We have found intake and exhaust rockers swapped which has caused oil burn problems. This has been on the small engines....on most 6 cylinder Continentals the differences in the intake and exhaust rockers make it obvious as to where they should be installed.

Garry

[Laz]

Re: Top End

Any one ever installed a set of superior cylinders on a BC12-D. I just talked to a AI that said they had to return them to superior becuse the one piece exhust would not fit.