If following the firing order it is easy to know what cylinder it is.

But I got the feeling it can be the hydraulic lifter that is slow to fill up
after engine start, it usually make a ticking sound that quit after a few
seconds.

pull the prop slow and then fast and listen from the exhausts (or carb) and
you know where to start looking.

Jan
www.jcpropellerdesign.com

"Scott" skrev i meddelandet
...
And if you're REALLY (un)lucky (like I was), you might hear air rushing
past a stuck exhaust valve and hear the hiss out the exhaust pipe when
pulling it through. Then you'd have it narrowed down to 2 cylinders...

Scott



Dick wrote:

good thought. Another I heard is to pull prop thru all 4 cylinders and
feel
for "flat" cylinder.
"Stealth Pilot" wrote in message
...

On Sun, 22 May 2005 11:54:45 GMT, "Dick" wrote:


Old WW2 mechanic says he hears a sticky valve on my C-85 when I fire up
for
first time in morning but can't describe the sound and says it lasts
only
as
long as a finger snap.


snip

Am I chasing nothing or what is a valid approach?

Thanks, Dick


get someone else to start your aircraft and stand beside him
listening. obviously he thinks he can hear something.
probably a clack clack clack sound which quickly vanishes as the valve
frees up and goes back to tolerances with the rocker.

just a thought.
Stealth Pilot
Australia.