New cylinders
- Thread starter Tom-D
- Start date
Stewartb
Final Approach
Cosmetic. Not important unless that's what's important.
thomasdr72
Pre-takeoff checklist
Nope, unless you want them to run hotter than they already will when breaking in ;-)
Checkout_my_Six
Touchdown! Greaser!
Stewartb
Final Approach
Superior prides themselves on their castings looking so good they don't need paint. I was in their facility last week and I agree, their cylinders look great on the bench. Run them awhile and they collect dust and grime and they aren't as pretty, but they look as good as any painted cylinders. Lycoming paints their cylinders so I don't think it makes any difference other than cosmetic. But some guys pay Lycoming $2k extra to polish the fins on painted cylinders. Its all about what matters to the guy writing the check. Me? I'm ordering a new Lycoming today and it'll have standard Lycoming gray painted cylinders.
Last edited:
bnt83
Final Approach
I wish new Lycoming cylinders were available unpainted.
Superior cylinders are alodine treated for corrosion lycoming are not, Hence the need for paint, polished fins are a PIA just like polished motorcycle parts lots of elbow grease to keep looking good.
Last edited:
Checkout_my_Six
Touchdown! Greaser!
but....they are painted. 
The steel barrels are painted fins are alodined usually alodine has light gold or yellow tintbut....they are painted.
Tom-D
Taxi to Parking
- Joined
- Feb 23, 2005
- Messages
- 34,740
- Display Name
Display name:
Tom-D
Kinda, halfway - huh!but....they are painted.
Tom-D
Taxi to Parking
- Joined
- Feb 23, 2005
- Messages
- 34,740
- Display Name
Display name:
Tom-D
There is a type of Alodine that leaves no stain.
Cap'n Jack
Final Approach
Something like Alodine 1500
https://www.chemical-supermarket.com/Henkel-Alodine-1500-Clear-Chromate-Conversion-Coating-p541.html
1RTK1
Pattern Altitude
who is paying?....and how much?
will someone pay more or less for the painted ones?
Very clean, nice pics, the way it should be
Tom-D
Taxi to Parking
- Joined
- Feb 23, 2005
- Messages
- 34,740
- Display Name
Display name:
Tom-D
The way it is.
Attachments
1RTK1
Pattern Altitude
Nothing like a clean new engine
weirdjim
Ejection Handle Pulled
- Joined
- Jul 8, 2008
- Messages
- 4,171
- Location
- Grass Valley, CA (KGOO)
- Display Name
Display name:
weirdjim
As I recall from chem class several decades ago, the yellow alodine gets its color from a chromate solution, while the clear uses something other than chrome to passivate the metal underneath. The chromate seals better but is environmentally horrible.
Jim
Cap'n Jack
Final Approach
Checkout_my_Six
Touchdown! Greaser!
ain't the internets grand?.....bless ole Al G.