posted
I'm havin a few isses with the carb and throttle servo. I cannot get the carb to open fully. It is about 90% open, but that is as much as I can get.
I have a Spektrum and I have adjusted the EPA to maximum, but I think my main problem is the alignment of the carb arm and the throttle mixer arm. It seems that the two are at the wong anlge to allow full opening.
I also notice that the carb arm ball catches on the throttle return spring.
Does anyone else have this problem?
I have rotated the carb arm on the carb to try and put it at the top of the mixer arm and to help it clear the spring, but the throttle will still not fully open.
It's almost like I need a longer servo arm, but I can't see how I could use anything other than stock (considering the brake setup).
-------------------- Revo 3.3 - RB523 - CD (70/500/50) Posts: 12 | From: UK | Registered: Nov 2006
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posted
Using the serach feature I found this in response to your set up issues.
TL New Member
posted 25 January, 2006 09:09 PM -------------------------------------------------------------------------------- Just installing my 323 on my revo and I am having problems with the carb opening all the way. When the instructions say it should open all the way, How far is all the way? I tried adjusting everything and can only get it to open just over 3/4, you can still see part of the card. Any help would be appreciated.
Thanks -------------------------------------------------------------------------------- Posts: 2 | From: IN | Registered: Jan 2006 | IP: Logged
cperalta Very Active Member
posted 25 January, 2006 10:26 PM -------------------------------------------------------------------------------- You need to adjust the carb and the throttle arm on the carb as well, this will take some time and patience but make sure you do it. If it is binding you are going to end up with more problems in the long run. A strong servo forcing the carb open is just wearing away at the metal. What I did was took off the throttle return spring and tied a rubber band there for testing.... If you get it to open and close fully with the rubber band then your problem is like mine was... the Throttle return spring is too stiff as the 323 sits back a little further. I did two things.. got a stronger servo and made a new return spring that was not soo stiff. A strong servo also does the trick but again be sure there is no binding at all if that is the route you go. -------------------------------------------------------------------------------- Posts: 164 | From: Colorado, usa | Registered: Apr 2005 | IP: Logged
bluesilver New Member
posted 25 January, 2006 11:05 PM -------------------------------------------------------------------------------- I had the same problem with mine. It seams to be a common fault. Fist you have to set the Transmitter t 70/30 to give the throttle servo more travel. Then I took the throttle rod (the one from the servo to the throtle arm on carb) and turned it upside down so as to clear the spring. Then I played around by rotating the throtle arm on the carb untill it was working freely by hand. Then installed a softer spring just to save battery power. I left in the stock sevros and are woking fine. The end result was the carb opening fully and a little bit more and closing just fine. Hope this helps.
-------------------- I would rather lose going fast enough to win than win going fast enough to lose.
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TL New Member
posted 01 February, 2006 06:32 PM -------------------------------------------------------------------------------- Thanks for the help, it is working great! -------------------------------------------------------------------------------- Posts: 2 | From: IN | Registered: Jan 2006 | IP: Logged
newtorb New Member
posted 23 February, 2006 03:48 AM -------------------------------------------------------------------------------- can you link me to, or tell me what throttle spring you are using? I made one from a pen spring, lol but they dont hold their shape for long. Any suggestion as to what to use in place of the throttle arm on the revo? not the one on the carb itself the one on the truck that rotates, its worn and ive noticed that it catches when its about 95% open. -------------------------------------------------------------------------------- Posts: 7 | From: kansas | Registered: Aug 2005 | IP: Logged
MikesRevo New Member
posted 16 March, 2006 05:48 PM -------------------------------------------------------------------------------- i found a solution for this common problem that apparently doesnt exist. (Hmmm)
i spent hours and hours to no avail trying to get 100% smooth movement, all failed until this.
all is now fine and dandy, i hope this helps, it was on ebay by the way and cost pennies. -------------------------------------------------------------------------------- Posts: 7 | From: UK | Registered: Mar 2006 | IP: Logged
RB Products - Rody Administrator
posted 16 March, 2006 11:20 PM -------------------------------------------------------------------------------- Seems indeed like a good solution to me, thanks for posting... -------------------------------------------------------------------------------- Posts: 3936 | From: Allevard, FRANCE | Registered: Jul 2002 | IP: Logged
Walnut16 New Member
posted 27 March, 2006 11:04 PM -------------------------------------------------------------------------------- who makes that bellcrank? -------------------------------------------------------------------------------- Posts: 4 | Registered: Nov 2005 | IP: Logged
biggin New Member
posted 28 March, 2006 07:15 AM -------------------------------------------------------------------------------- I belive its integy, I just went into the LHS and ask for a ball bearing type bell crank. You can also just add a bearing to the exist bell crank.
-------------------- "Put the peddle to the metal"
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MikesRevo New Member
posted 28 March, 2006 08:48 AM -------------------------------------------------------------------------------- i tried the bearing in the stock bell crank and it didnt work for me, perhaps if your bel crank is new you will get it to work.
mine was a year old with some worn notches in the groove. the integy one was new and smooth and fixed it a dream.
it really is worth the money. about 6 uk pounds. -------------------------------------------------------------------------------- Posts: 7 | From: UK | Registered: Mar 2006 | IP: Logged
Walnut16 New Member
posted 28 March, 2006 10:45 PM -------------------------------------------------------------------------------- I can find a 3 racing bell crank in the uk but the one in the pic looks taller, are you using the standard spring mikesrevo? -------------------------------------------------------------------------------- Posts: 4 | Registered: Nov 2005 | IP: Logged
MikesRevo New Member
posted 29 March, 2006 08:50 AM -------------------------------------------------------------------------------- yes, using the standard spring. i do have slightly stronger servo to stock though.
mine is the integy bell crank i believe, i am sure the 3 racing one will be fine though. -------------------------------------------------------------------------------- Posts: 7 | From: UK | Registered: Mar 2006 | IP: Logged
-------------------- "Put the peddle to the metal "RBWSII,RB523,RBC6BB(2), RB928 Revo 3.3, XTM 1/8 Buggy, Jammin Truggy, Jato,XB5R BUGGY Posts: 46 | From: Northern California | Registered: Feb 2006
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