vintcs77
05-06-2007, 04:31 AM
Hi, just to check out anyone has this problem with the raptor50 on OS50hyper engine with MP2 pipe that the 2 allen keys screw got broken with few flights and it happened twice to my friend's heli. It the screw that secured the clutch to the fan.
Thks
BarracudaHockey
05-06-2007, 08:06 AM
Sometimes the fans aren't tapped deep enough or the bolts are a bit too long, either way it looks tight but there's enough play for the clutch to vibrate and shear the bolts. Its not common but its not unheard of. Just nip a few mm off the ends of the bolts and make sure they are tight.