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| cchap85 | Heliman - Location: Anchorage, AK-USA - My Posts This: Topic Forum |
I have a 50SE I purchased used two years ago: hyper 50, stock clutch
muscle pipe, stock tail blades and boom, main gear, auto hub, belt and idler pulleys. I am having three problems: One; excess belt dust on tail case ( belt was flipped over and re-tensioned for ambient outside temp before last flight) perhaps it is a bit loose--there is no lubricant of any type on belt. Two; there is a crunching ratcheting
type noise mainly on spool up, noise is quiter if spool up is done more aggressively with more throttle, noise can be heard on spool down as well, tail blade rotational speed can be seen to vary I believe when noise is heard as well.Third on full power climb out the tail will let go a bit and the engine will rev up a bit as well. Top pitch is 10 deg with 600 mm black and white TT blades
15% nitro power master fuel, gov is turned off, top end fuel mix is close- 1 1/2 turns out at 30 deg f outside. 401/9254 65% gain in HH linkage silky smooth. Is this a slipping clutch, a slipping auto clutch or ?. I put in a new liner some time back but dont know how many hot-starts since then. Auto clutch lubed some at last dissembly with TT lube, not sure how many flights since then but a lot of shelf time. Never changed mainshaft, not sure how many flight hours on machine. This is a problem-- any answers or advice is appreciated thanks. PS. tail pulley pin is ok, all tail bearings in rear tail case are ok, have not checked belt teeth or drive pulley at main gear yet. |
| 10-30-2009 03:52 AM | | | |
parts on order --thanks.