"Lloyd E. Sponenburgh" wrote in message
. 3.70...

"RogerN" fired this volley in
:

On a side note, some have had problems with the muffler coming loose
on the 4-stroke engines, they use JB-weld and it holds up on the
exhaust pipe of the model engines.


If they did, they're not 'modelers', they're hacks.

C'mon! That's like holding the motor on a DuraPlane with rubber bands!

Y'don't glue a friggin' muffler on! You FIX it mechanically.

Besides -- WHICH 4-strokes had that problem? I've got three sizes of OS
4-strokes, and never had a single part work loose.

Lloyd


Lloyd

The YS 90 heli engine is the one they had trouble with, not sure if the
problem was on any other engines or not. The fitting is like a flare
fitting, male threads on the exhaust header. I take it loctite didn't hold,
or anything else until someone tried JB-Weld. Not sure if it's removable
though, the heat may break it down.

I heard that was a problem with the 4-strokes and JB weld was about the only
way anyone had success with. They seemed like pretty serious modelers, a
guy I flew with ran over a drum of fuel a year and was very meticulous, he
could fly the heli inverted near the ground, I saw him barely scrape his
blades once on the asphalt. You can call him a hack but I figure he can fly
circles around most "modelers", inverted backward rolling circles or
whatever.

RogerN