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-   -   A few new problems with the Violator. (https://www.rcuniverse.com/forum/rc-1-8th-scale-buggies-244/1539214-few-new-problems-violator.html)

nathanstl 02-18-2004 01:00 AM

A few new problems with the Violator.
 
Ok, I'm loving my buggy so far and I had it out today and I was trying to start it and it wasn't turning the engine so I pulled it apart and the one way bearing was shot, luckily my LHS had the part in stock and I replaced it tonight which brings me to my first question:

1. Is there anyway to prolong the life of these one way bearings? Lube? Regular Cleaning? Also is there anywhere you can get these cheaper, This little thing was $20!

Another unrelated problem is my engine seems to load up far to quick and it has problems idling. I mean it loads up in like 3-4 seconds and then will die in another 3 or 4 seconds if I don't blip the gas. I'm using 30% Nitro. I did see that the backplate bolts were very loose today when I pulled the rotostart off so I put some high temperature silicone on it to seal it and tightened them down. Also I will be switching to a Mccoy 9 Glow Plug because of the 30% nitro. Any suggestions?

Aerobirdbrain 02-18-2004 02:04 AM

RE: A few new problems with the Violator.
 
A. Regular cleaning would help the bearing, but going to bump start and eliminating the pull-start all together would be cheaper in the long run in your case.(plus you won't have to worry about a charlie horse in your arm again;))

B. The "loading up and dieing" thing is most likely caused by your low speed needle being too far out, or "ritch". To fix it, simply turn the LSN (the one that is closest to the throttle linkage) 1/8 of a turn at a time CW (clock wiese) until the engine loads up after about 20 or so seconds without dieing when you pull on the throttle, yet is should sputter a little; the idle should also have a distinct "pinging" sound in its idle, kind of like a dirtbike when they are at idle. When the car is at idle you should also be able to see a slight amount of smoke coming from the pipe, and a very little amount of oil when you put your hand up to the exhaust stinger.

Da Smak 02-18-2004 05:55 AM

RE: A few new problems with the Violator.
 
WHOA!! Stop using the 30% for a start. 25 % max for hyper 21. The cause for this damage is a combination of errors, and your lucky you didn't snap the conrod.

Firstly, the fuel I've said above that the H21 doesn't like anything above 25% for 3 main reasons.
1 Your engine timing is wrong for this fuel, It will be pre igniting and pitting the head of your piston. Can be solved with head shims.
2 The Nitro % itself means it has too be lean in this engine to burn. Not good.
3 This Nitro % will be making running temps too high.

Secondly, If you used this fuel to beak in the engine then the damage was done from the start. You would have over hardened the internal components whilst heat cycling during break in. This is why the turbofan gave up.

Ref your 2nd and 3rd queries, After run oil used correctly will prolong the life of all components and look on ebay for cheaper parts. As for prolonging the life of the engine, I have already mentioned one way but another is to run it within the recommended boundries of it's design. So 25% nitro tops and 14% oil content fuel min is recommended, I run a #8 plug and 25% fuel and this has lasted 8 gallons so far. Your obviously a speed freak with the fuel you were using so try larger clutch bells instead. And the reason you engine was cutting out after 3 secs would be a mix of 30% fuel and being too lean. Another reason the fan went.

Oh well you learn as you ask.

nathanstl 02-18-2004 10:49 PM

RE: A few new problems with the Violator.
 

ORIGINAL: grahama89

WHOA!! Stop using the 30% for a start. 25 % max for hyper 21. The cause for this damage is a combination of errors, and your lucky you didn't snap the conrod.

Firstly, the fuel I've said above that the H21 doesn't like anything above 25% for 3 main reasons.
1 Your engine timing is wrong for this fuel, It will be pre igniting and pitting the head of your piston. Can be solved with head shims.
2 The Nitro % itself means it has too be lean in this engine to burn. Not good.
3 This Nitro % will be making running temps too high.

Secondly, If you used this fuel to beak in the engine then the damage was done from the start. You would have over hardened the internal components whilst heat cycling during break in. This is why the turbofan gave up.

Ref your 2nd and 3rd queries, After run oil used correctly will prolong the life of all components and look on ebay for cheaper parts. As for prolonging the life of the engine, I have already mentioned one way but another is to run it within the recommended boundries of it's design. So 25% nitro tops and 14% oil content fuel min is recommended, I run a #8 plug and 25% fuel and this has lasted 8 gallons so far. Your obviously a speed freak with the fuel you were using so try larger clutch bells instead. And the reason you engine was cutting out after 3 secs would be a mix of 30% fuel and being too lean. Another reason the fan went.

Oh well you learn as you ask.
It's a force 26 not a hyper and I broke it in with 20%. The reasons I switched to 30% are because thats what a magazine reviewer(Extreme RC) used and I thought that he would know what he's doing, and also my experience with nitro percentages is exactly opposite of yours. 20% I was running at temps between 265-285 and when I switched to 30% they dropped a ton. Now it runs at 190-220 with the 30% and I'm also using a #8 plug.

Da Smak 02-19-2004 05:31 AM

RE: A few new problems with the Violator.
 
Well, here the Violator ships with the Hyper 21 8 port. So you can see where I was coming from. But the temps I stand by. And I work in Celsius not Farenheit.

dchi 02-19-2004 08:07 AM

RE: A few new problems with the Violator.
 
Me and 2 friends just got 2 new Violators and a new Hyper 7 PCR RTR. Both violators had the one one way bearing in the the wrong way. The Hyper 7 PCR had the brakes installed wrong, pads were not around the disk. I called OFNA and they didn't seem to give a damn saying well that happens sometimes. Also the viloators were missing some decals and some small stuff. Oh yeah the guy at OFNA told me to go to the hobby shop and just buy them. THey should have been included, I was pissed. Spend $1500 and this is the kinda of customer service you get. To all buyers, beware when you deal with OFNA.

Smakheed 02-19-2004 08:11 AM

RE: A few new problems with the Violator.
 
Who was the Ofna rep. I'll have some words with him. You will be getting your parts. As for the brakes, this is not common, I haven't heard of Ho Bao doing that before. Just5 as well you didn't run it first or you'd have been buying new brakes aswell.

nathanstl 02-19-2004 09:12 AM

RE: A few new problems with the Violator.
 

ORIGINAL: grahama89

Well, here the Violator ships with the Hyper 21 8 port. So you can see where I was coming from. But the temps I stand by. And I work in Celsius not Farenheit.
Ok , well celsius or fahrenheit it still drops for me. I'm going to try to put a second glow plug washer in and see if that helps it any and I also have a little 20% left so i will try it again tomorrow morning and I'll post the results.

nathanstl 02-19-2004 09:15 AM

RE: A few new problems with the Violator.
 

ORIGINAL: dchi

Me and 2 friends just got 2 new Violators and a new Hyper 7 PCR RTR. Both violators had the one one way bearing in the the wrong way. The Hyper 7 PCR had the brakes installed wrong, pads were not around the disk. I called OFNA and they didn't seem to give a damn saying well that happens sometimes. Also the viloators were missing some decals and some small stuff. Oh yeah the guy at OFNA told me to go to the hobby shop and just buy them. THey should have been included, I was pissed. Spend $1500 and this is the kinda of customer service you get. To all buyers, beware when you deal with OFNA.
I also had a problem with the included bonus NIMH charger and hump pack. I too called ofna and they didn't seem to care, they just told me what kind of charger to buy. Also mine didn't come with any decals or antenna tubes and they still didn't care. My first nitro car was a duratrax and they have replaced everything I've inquired about or had a problem with.

Maxxer 02-19-2004 06:21 PM

RE: A few new problems with the Violator.
 
I totally agree, my charger and hump pack arent worth crap! ( i also have the violator.)

nathanstl 02-19-2004 07:15 PM

RE: A few new problems with the Violator.
 
Ok guys, took it out for about an hour and wen through 3 tanks of 20% and it seemed to solve my problem although my temps were back up around 270 I could tune it down to about 240's, but then it didn't have much power. Maybe I'll try 25% and one more head shim. The idling was a lot better however once I got it up to anything over 245 it didn't want to idle for more than 8-10 seconds.

tpeep 02-20-2004 01:39 AM

RE: A few new problems with the Violator.
 
First off, I would agree wtih grahama89 that your 40% is too rich. I recommend 20%, Also remember to put after run oil down the carb & glow plug hole!

spanktra 02-20-2004 10:19 AM

RE: A few new problems with the Violator.
 
I just got my violator last night and I had the same problem with the starter shaft one way bearing installed the wrong way. After stripping the motor mount hex heads on bottom, I had to take the cylinder head off just to get to the screws that hold the motor on, so I could fix the bearing. By the way, the radio that comes with the RTR violator isn't worth the packaging it's shipped in.

Da Smak 02-20-2004 10:41 AM

RE: A few new problems with the Violator.
 
Sounds like your lsn is too lean for the idling problem. What is your ambient temp where you are running? Try fitting the 0.1mm head shim. This will lower compresion and temps.

remten2001 02-20-2004 10:48 AM

RE: A few new problems with the Violator.
 
I have a violator and I haven't had one single problem yet...I thought I haven't received any decals too but after checking carefully in the box they were put right under another card board in the box...If i wouldn't of lift that card board i would of never saw the decals...So check that...

And before i even started engine I took it all apart and sealed the backplate and carb with high temp silicon....All force engines are known to run hot....

As far as the hump pack what exactly is the problem you are having with it?I haven't had any probs with mine what so ever...

nathanstl 02-20-2004 01:04 PM

RE: A few new problems with the Violator.
 
Hump pack will charge overnight and then when I start to run it literally dies in seconds. Definitely didn't get any decals with mine. I have heard that force engines run hot, but isn't 270's a little too hot? Oh yeah spanctra, I just remove the whole engine mount and everything that way you don't have to remove the head. It's 4 screws on the bottom of the chassis, just remember to use lock tite when reinstalling. Also my lhs had the one way bearing for it in stock, you just have to ask for the Savage Rotostart one way and it's exactly the same. $17.99 is pretty pricey though so I may go to a bump start if this one goes out anytime soon.

nathanstl 02-20-2004 01:05 PM

RE: A few new problems with the Violator.
 

ORIGINAL: grahama89

Sounds like your lsn is too lean for the idling problem. What is your ambient temp where you are running? Try fitting the 0.1mm head shim. This will lower compresion and temps.
Ambient yesterday was about 60 degrees F.

remten2001 02-21-2004 05:35 PM

RE: A few new problems with the Violator.
 

by nathanstl
Hump pack will charge overnight and then when I start to run it literally dies in seconds. Definitely didn't get any decals with mine. I have heard that force engines run hot, but isn't 270's a little too hot?
The hump pack probably needs a few cycling discharge and recharge and will be fine...270 F is typical for ofna force engines...My force .25 used to run around 285 f to 290f .. Yes its hot but thats the price to pay for owning a low cost RTR...I like engine that runs hot rather that engines that run too cold...Like for example the engine in my savage 25 runs like crap cause the temps can barelly go up to 200...and thats not fun..i rather have an engine that runs hotter and has more power....

YOu can't expect to have everything perfect considering the cost you pay for what you get...We are all aware before buying A RTR that it doesn't come with synthesise RAdio and RB WS7 engines...

dchi 02-21-2004 09:56 PM

RE: A few new problems with the Violator.
 
I check the box really good and did find the missing decals and antena tube. My fault and sorry for that but the bearings were still in backwards and that was on two of them and it cost my buddy about $25 new one after he tore it up with a drill trying to start it. Also the rep who Im not sure who it was was not carring or helpful. I got the hyper 7 pcr together right and it runs great. I don't think bad of OFNA products just of those who are putting them together a their service.

nathanstl 02-21-2004 10:48 PM

RE: A few new problems with the Violator.
 

ORIGINAL: wizen2002


by nathanstl
Hump pack will charge overnight and then when I start to run it literally dies in seconds. Definitely didn't get any decals with mine. I have heard that force engines run hot, but isn't 270's a little too hot?
The hump pack probably needs a few cycling discharge and recharge and will be fine...270 F is typical for ofna force engines...My force .25 used to run around 285 f to 290f .. Yes its hot but thats the price to pay for owning a low cost RTR...I like engine that runs hot rather that engines that run too cold...Like for example the engine in my savage 25 runs like crap cause the temps can barelly go up to 200...and thats not fun..i rather have an engine that runs hotter and has more power....

YOu can't expect to have everything perfect considering the cost you pay for what you get...We are all aware before buying A RTR that it doesn't come with synthesise RAdio and RB WS7 engines...
I wasn't saying I want perfection, I just want my engine to last a while and heat is the enemy of that and I definitely could care less about it not coming with a synthesized radio and WS7 engine, LOL I bet they alone cost more than my whole car. It would run at 230-245 on 30%, so I was trying to figure out how to tune it to run right with that %nitro. I might try 25% with an extra shim and see if it's right in the middle which would put me at where I want to be.

davealator 02-23-2004 04:41 PM

RE: A few new problems with the Violator.
 
Thanks, I also found the sticker kit and antennae tube under the cardboard in the box. I also disassembled the roto start to check the back plate and found one of the screws for the back plate barely finger tight, the others were so tight i nearly broke my t-handle. The roto start was dry as a bone so i lubed that up, does it spin with the engine while running? if so, mine would not have lasted through break in, literally the gears and bearing were dry. My motor was soo rich that it wouldn't fire, i leaned it to 3 1/4 turns and it still spattered unburned fuel on the garage floor. I am running sidewinder fuel and the first thing it says in big bold letters is not to use after run? I also agree the stock radio is a joke. What plugs have you had luck with, would like to stock up, also what parts do you recommend to go ahead and buy b/c it's just a matter of time b4 it breaks. Thanks

nathanstl 02-23-2004 11:01 PM

RE: A few new problems with the Violator.
 
Upgrade your steering servo, then your throttle/brake servo. I would get the following parts as back up
Rear wing and mount
Front Bumper
Rock Guards
Front Lower Arms
One way bearing
A couple differentials

I have most of the above, however I have almost 3/4 of a gallon through mine and the only things that have broke are the one way bearing in the roto start and one of the rock guards and I've been very hard on mine, I've landed upside down several times off a good 5-6' jump and I've even slammed into a tree head on a few times now. This thing is a tank!

ShOzz 02-24-2004 09:02 AM

RE: A few new problems with the Violator.
 
switch back to the 30%, it will not harm your engine unless you tune badly.

sounds like all you needed was to adjust your idle scew and high speed needle. with a higher % normally you lean it a tad and will still get much lower temps. there have been many studies by many people proving a 30% will on a properly tuned engine out preform a 20% and run at a lower temp as well.

nathanstl 02-24-2004 07:52 PM

RE: A few new problems with the Violator.
 
I think I will try 25% because as soon as I went back to 20%, my idling problem worked itself out.

ThunderGod66 02-25-2004 02:23 AM

RE: A few new problems with the Violator.
 
I just got a Violator but haven't ran it yet.

How do you tell if the one way bearing is in wrong?
Do you have to take it apart, or will you know when you try to start it or something?


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