Originally posted by mstacey
Dirk I don't find you rude at all.
the pilot of the jet plane always know how to change the engine ?
and maybe just maybe were perhaps you once also in the position of never having changed a prop.
Hmm, So do you consider yourself the equivalent of a 747 pilot when your at the helm of your rib? Or captain of the Ark Royal. Although you are probably correct, I wouldn't mind betting that percentage wise they know alot more about their craft than you do about yours!!
I don't really think it's quite the same, do you? A pilot has the backup of a team of dedicated engineers, huge engineering and servicing teams etc etc. You only have yourself.
It's just basic knowledge, and common sense. And yes, many years ago I too was in the position of never having changed a prop, I seem to remember that within a couple of minutes I had acquired that knowledge, something that you ought to try as well.
As for the torque setting, you worry to much. It's very rare to use a torque wrench to fasten a prop nut, and it's unlikely that you would carry one on board for the odd prop change at sea. ( although I don't doubt that Manos has one to comply with the Greek coastguard)
Most people use the Gorrilla method, that is do it up bleeding tight. If it was a big Merc, then 55 ft lbs is ok, but tight is the norm.