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the proper start and shutdown procedure for the CJ

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tamara_b(at)telus.net
Guest

Posted: Thu Oct 19, 2006 9:04 am Post subject: the proper start and shutdown procedure for the CJ

I have read David Strout's thread

and I was taught the following

procedure by a chinese aviation

professor:



If the engine is cold, after priming

switch both magnetos on and push

the starter button.



If the engine is hot, do not test for

hydraulic lock by turning the prop

(it could fire) but push the starter

button and after 4 blades flick the

magneto switch on both.



To shut down the engine (wait until

Cyl.-Head-temp is below 150 C), do

your scavenge run at 2000 rpm for

30 seconds, retard the throttle to

1000 rpm, switch off the magnetos

and while the prop is still turning,

advance throttle to the fully open

position.



Now some experienced Pratt

& Whitney pilots say, to do it

that way could damage the valves

and the valve-seats could come

loose.



So Gentlemen, what is your opinion

about that matter?



Regards



Elmar (C-FTKL)

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