O-300 Overhaul for '98C

[GAHorn]

Congratulations, Miles! What was your IAS/TAS at those engine readings?

[cessna170bdriver]

deleted by the author

[philnino]

Glad to see your back in the air. I have considered an overhaul myself but feel I would take too long to get 42c back in the air. Seems like my annuals keep getting longer to do and I'm sure that is an indication. Thanks for the running commentary and pics, it has been enjoyable to follow. Shiny side up,
Phillip

[n2582d]

A longtime friend and radiator shop owner/operator told me numerous times that a radiator will cool better if left unpainted. However most folks want them painted black as they "look" better if they are where they can be seen through the grill. He always left his personal ones unpainted. BTW his method of painting them was to cut/thin the black paint with gasoline. OSHA, the city & EPA would have had a fit if they had known

At a recent presentation Loren Lemen of Ly-Con said that cylinder heads just alodined are 15-20 degrees cooler than painted ones. Is it possible to get aluminum alodined black? Ly-Con also has a ceramic coating for the top of their pistons which helps reduce CHT's.

[T. C. Downey]

I get all my parts from one of two places,

Aircraft specialities or aero parts on line, all parts are either Superior, or ECI. cylinders are 870.05 each.

[T. C. Downey]

A longtime friend and radiator shop owner/operator told me numerous times that a radiator will cool better if left unpainted. However most folks want them painted black as they "look" better if they are where they can be seen through the grill. He always left his personal ones unpainted. BTW his method of painting them was to cut/thin the black paint with gasoline. OSHA, the city & EPA would have had a fit if they had known

At a recent presentation Loren Lemen of Ly-Con said that cylinder heads just alodined are 15-20 degrees cooler than painted ones. Is it possible to get aluminum alodined black? Ly-Con also has a ceramic coating for the top of their pistons which helps reduce CHT's.

A set of NEW ECI 0-200 cylinders that Ly-Con flow balanced are the only ECI cylinders I've ever had problems with. they threw away the STC paper work you need to return to service with a 337 stating the engine has been converted to ECI rotating exhaust valve configuration. Each cylinder comes new in a box containing the STC and a filled out 337, they threw it all away.

[T. C. Downey]

Is it possible to get aluminum alodined black?

What you are asking is Anodizing, and yes this can be done, but I don't know where to send them.

Alodine = a etch of 6% solution of chromic acid, that leaves a coffee looking stain behind or a golden hue.

Anodizing = a electro chemical plating process that leaves a color on the aluminum.

[n2582d]

... FYI will searching the web for info on Loctite 515 low and be hold I found out that TCM isn't alone using the two product combination of Loctite 515 and Permatex D plus silk thread to seal case halves. Lycoming also makes this recommendation.

Apparently LyCon will soon have an STC to add a milled channel on Continental case halves to insert an o-ring seal in. I'd be concerned about the seal hardening after a number of years and then leaking. Wonder what sort of material the seal is made from? Viton? I wonder how useful this is on the O-300. Anyone had problems with oil leaks at the crankcase seam?

Ly-ConCaseORing.pdf