ORIGINAL: AndresAM
Hello everyone.
I am new in this forum (Actually this is my first post) and I just entered RCU to be able to post in this thread. I bought a DA 50 in May 2004 (first gas engine also). The serial # is 1477. My engine does not have the new rod or the new pressure line location.[

]. Besides, I am in Colombia (south America) so sending the engine back in case something happens will be very difficult for me.[:@]
The engine have not been started yet so I will just go ahead and run it and hope for the best. In the meantime I have two questions:
The first one (Maybe RCIGN can help) is that according to what I have seen, the new pressure pulse line location is OK for solving the problem if the engine is inverted but it has to be in a different place if the engine is horizontal (mine will be). What I mean is that the fuel tend to puddle in the bottom of the carb block and this (where the fuel will puddle) changes if the engine is mounted inverted or horizontal. (I hope I explained this right)
The second question is: has anybody run many gallons through an engine with the old rod whithout any failure. I am sure engines previous to mine (#1477) don“t have the new rod and if someone has put one of these engines to serious work (300+ flights) whithout failure there is hope for me.

I thank everyone
Regards,
Andres
I'm sure there is a lot of DA's that have been run many hours without failure. I would guess the failure rate is dirrectly related to the type of flying. If your flying circles, loops, and not stressing the engine I'm sure it will be fine, However if your flying balls to the wall 3D, hovering and such with the old rod, your days are numbered. And so is your plane if it quites while your torque rolling 10 feet off the deck.
Here's what confuses me. DA could easily give a statement on this forum and clear up all the speculation. Other manufacturers do this. Take for instance Hitec. You can ask the factory rep anything you want on RCU. At the present time they are being pounded with questions about the 5955 Digital servo. It has problems, however Hitec is keeping people informed of the progress.
john