I had submitted a few months ago a problem I had when my instructor over
spun my Franklin 235 on my Hiller B/C model after the Rotor RPM wire
came loose in flight. After the over spin, I unknowingly flew the Hiller
back to base ( about a 45 min flight )The Hiller flew perfect. After
reading the comments from you and other Hiller Pilots, I took my
Aircraft 5 hours away to a Franklin dealer. He called today and said he
looked down one of the cylinders and said that the piston was pitted
from overheating. He suggested a complete overhaul and said the
approximate estimate would be $ 20,000 Â±.
Being a new Hiller owner, and not being a Franklin mechanic, does this
sound in line? And if the engine got so hot and the pistons were so
badley pitted, Why would it run so great on the way back. I plan on
going out to take a look at the cylinder next week. I'm just trying to
get as much feed back as I can prior to going back out. I am sure he is
correct on his analysis, I'm just interested in your thoughts and
P.S. What other problems may I encounter?