Fairchild Club Forum

'Walt,

You must have an older list than me.

3140 Richmond Dr.
Colorado Springs
Colorado, 80922
Ph: 719-570-0782 hm
Ph: 719-265-0181 wk

Jamie S. Treat A&P/IA

Visit my Web Site:
http://hometown.aol.com/ftreat9191/AIRCRAFTRESTORATIONREPAIRindex.html">Aircraft Restoration & Repair

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http://hometown.aol.com/ftreat9191/TreatFamilyHomePage.html">Treat Family Home Page



[Non-text portions of this message have been removed]'

'

> How can this condensing vapor be any more corrosive than distilled
> water ?
> Tom D.

I've been told that some combustion by products are very acidic.

Chris Shaker



[Non-text portions of this message have been removed]'

'--- In fairchildclub@y..., "Christopher John Shaker"
wrote:

> > How can this condensing vapor be any more corrosive than

distilled

> > water ?
> > Tom D.
>
>
> I've been told that some combustion by products are very acidic.
>
> Chris Shaker

They are, but they stay in the oil, the water you see condensing on
the oil cap, is pure distilled water vapors, they will end up at the
bottom of the oil tank, as they collect and run down the walls of the
filler neck. When I open up 0-300/C145s I find many corroded under
the oil, water will condense and fall to the bottom of the oil sump,
and cause corrosion which is fatal to many old 0-300s
I agree with Jamie, run the engine often, and run it long enough to
get hot enough to expell the water thru the engine breather.'

'All,

If you go back a few issues of Vintage Mag you will come across many informative coverage of the proper use of preheaters. This data came from the maunf of the units. The worst is an idle engine, heaters on all the time. There have been reported engines failing with 30 hours of flight time since extensive major. The corrision was so bad on the cam and followers that total breakdown occured. Beware. Preheat before you fly and fly it oftn. Runups on the pad will not to a thing to save your engine, you must get to operating temp.

Jamie S. Treat'