R/C Tech Forums - View Single Post - Losi 8ight building and setup
View Single Post
Old 12-06-2006, 10:06 PM
  #1008  
SupermaxxRich
Tech Elite
iTrader: (16)
 
Join Date: Feb 2004
Posts: 2,593
Trader Rating: 16 (100%+)
Default

was helping my nephew work on his 8ight tonight and I think I
discovered something with the help of you guys 8-) He lost a throttle
servo last time out, it ran good for 70 minutes the time before but
there wasn't any huge jumps at the first track he ran it at. this
second go around there was some nasty jumps that he landed "short" so
there would have been some really good chassis flex going on! Needles
to say he lost his servo in less than 2 tanks.
he had his servo spaced away from the chassis enough but he didn't use
the rubber grommets and had the servo bolted down tight. Tonight I
installed the rubber grommets with the brass sleeves and screwed the
bolts down just until they touched the washers ontop of the rubber
grommets and then gave them 1/2 a turn. then I started grabbing the
servo twisting it and such to see how much it would move around and
was surpirsed to see that it actually doesn't move that much with the
servo being that "loose".
now, when I was holding the radio tray front to back and simulating
chassis flex I could see the rear mount of the servo(where the
elongated mounting slots are) allowing the battery box to "slide" back
and forth on the rear servo mount. I think this is the key to allowing
the servo's to live. I think peeps that are cranking down tight on the
servo mounting screws(even with the rubber grommets) aren't allowing
the radio tray to "slide" back and forth there for transfering all
that flex to the servo. I then bolted up his radio tray to the car and
grabbed the car front to back and the car does have lots of flex in it
wich I think is a good thing. I could see the "sliding" affect taking
place while I was simulating chassis flex. I really think this is
the "fix" to all the problems. my nephew will be running his car on
the 16th of this month so I'll let you guys know how it goes. Maybe
one of you guys that are having these issues can test my theory out
before then and see if it fixes your problems?? 8-)
SupermaxxRich is offline