Ken Powell wrote:

I have wondered how you could possibly predict something like an
oil cooler failure.  A perfect installation could still have a
failure like Chuck's.  The only way I can think to guard against
this type of failure is to have 25 to 50 hours ground testing.  Any
other ideas on how to test the integrity of the systems before
flying?  I think that I will develope a checklist of failure points
while I am constructing the firewall forward, and then try to
verify the integrity of each item during ground testing.  Just a
thought.

Ken Powell

Bill Freeman wrote:

Build a simple test rig and pressure test your radiator(s) and oil
cooler(s) to 1.5 or 2X normal working pressure.  If you pop
one on the ground you'll hate it, but not NEARLY as much as
popping it in the air.  All certified aircraft hose assys are pressure
tested before the shop releases them to the customer.

Have you got AC 43.13-1A and 2A??

Bill

Ken Powell wrote:

Bill,
I will be sure to read AC 43.13-1A and 2A at least 20 times per ypur prev post.
No kidding, I will spend the time to become familiar with it - I just didn't
know this maual existed until you mentioned it earlier this week.  I have a lot
to learn.  20 years of racing motorcycles did not teach me how to build
airplanes.  Sometimes it really is frightening to realize that you could kill
yourself because of simple things that you SHOULD have done.  I will pressure
test my oil and water cooling systems.  I'm embarrassed to admit that I had not
thought of this simple precaution.

Ken Powell

 
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