by MichaelFarley56 » Fri Dec 23, 2011 4:49 pm
Well, I think I figured out what my problem is...
Hello All,
I've been investigating why my engine won't start so I did a compression check
today. Turns out I have no compression at all, but out of curiosity I spun my
prop the wrong direction and sure enough, got compression.
I removed the valve covers and spun the engine the correct direction only to
find that on each cylinder the exhaust valve opens first, followed by the intake
valve. When spun the opposite direction the valves worked normally (intake
open, then exhaust opens), thus telling me that my ACV-P01-72 camshaft was
milled for a right turning engine as opposed to the Aerovee's left turning one.
Unfortunately Sonex is closed until after the first of the year so I can't talk
to anyone at the factory, but even if I'm wrong on this I would rather everyone
here hold off before closing your case halves, just in case a batch of reversed
camshafts were sent out.
So much for flying soon...
Last edited by
MichaelFarley56 on Sun Dec 25, 2011 6:08 pm, edited 1 time in total.
Mike Farley
Waiex #0056 - N569KM
Jabiru 3300A #1706
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