hello all, im new to gas rc but i like it so far ,a anyway i need some help i have a volcano sv and i think my clutch bell spring went out im not sure, it was going good then i rolled it over it ran for a couple of seconds and then died before i could pick it up. i started it and it seems to stay in gear .its also a bit harder to pull start now..when i roll it on the floor it turns the motor over and i cant drive it unless i give it gas and keep it moving.. what do you think it could be???? please i need to fling some dirt soon also i need to know what kind of upgrades i can get and where can i get them??

It definitely sounds like a broken spring. To verify it's the spring, try starting it on a block or something so all 4 wheels are off the ground. When you start it, or even just pull the starter, the wheels will spin if it's broken. If the wheels are on the ground, it will be VERY difficult to start because the clutch is engaging as you pull.
Refer to this tune and repair thread next - http://www.rcuniverse.com/forum/m_4207842/tm.htm t's the first topic on the thread.

Now, for the upgrades...
I have the SV as well and replaced the stock 16t CB with an HPI heavy duty (hardened steel) 18t CB for the Savage. Adding 2 more teeth greatly improved the top speed as well as kept plenty of torque, which this truck/engine has an over-abundance of. The 16t CB just winds out way too quickly. The HPI Savage CBs are direct swaps, no mods necessary.
I replaced my clutch springs with MIP replacements, but some folks here will recommend Traxxas replacements. Either ones will work fine, but it's hard to find the Traxxas spring alone without the shoes. They don't make a better compatible spur gear, but if you have your gear mesh set correctly, you need not worry. You will need to reset your mesh when you take the engine off. The best way is to stick a strip of notebook/printer paper between the spur and CB, push snug and tighten down the engine mounting screws, making sure to use blue LocTite on them. When you push the truck it should roll smoothly with no binding or loud clicking noises. It's a fine line between perfect and too loose/too tight, so be diligent in your adjusting. Read my thread I linked to at the end of this post. Very important info in there!
I also upgraded my stock wheels and tires with the HPI SS Monster Wheels and Pro-Line Masher 2000 tires. Super sweet setup, and these tires hook up like mad! Nothing stops my Volcano now...

Long story short:
Clutch Bell - http://www2.towerhobbies.com/cgi-bin...?&I=LXFKM8&P=7
Clutch Spring - http://www2.towerhobbies.com/cgi-bin...?&I=LXUR89&P=7
Wheels - http://www2.towerhobbies.com/cgi-bin...?&I=LXM875&P=7 (all 4 REARS for a 4X4)
Tires - http://www2.towerhobbies.com/cgi-bin...&I=LXUM93&P=ML

Here's the thread I started when I replaced my CB and spring - http://www.rcuniverse.com/forum/m_4982701/tm.htm
And heres the one on my wheels and tires - http://www.rcuniverse.com/forum/m_4865041/tm.htm

hey, yea the tires move when i try to start it.. that sux, not even 6 tanks of gas through it yet. lol thanx for the info im going to order the cd and spring.. can you get upgrades for the shoes ??

There's no need to upgrade the shoes. They work fine in a steel bell. The problem with the stock CB is that it's aluminum, but the HPIs are steel. It's all good...

disadvantage to aluminum shoes is that they wear faster, a lot faster.

thanx, can u guys tell me how to put in the spring? i cant figure it out..... arrr

http://www.rcuniverse.com/forum/m_4207842/tm.htm




first post tells you how to put in new spring

Hey faxman if want go to your hobby store and pick up the traxxas clutch spring part# 4146x, it comes with shoes but use your stock ones. the traxxas spring is a little stronger and works a h@@@ of a lot better.. i use it in my himoto syclone and have never broken yet!!

Hmmmm... I don't mean to come off sounding like a d!ck. Please don't take this the wrong way

A few posts up I already gave faxman the repair and tune link to the clutch spring relplacement and a link to better MIP springs, letting him know that he will have to buy the shoes as well if he gets a Traxxas spring, which is a waste of money cuz you can't use them on a Redcat. I recently put one on my Volcano SV and it works great.

faxman, the hardest part about the spring is connecting the ends without it coming apart. What I did was twisted them together and they stayed put nicely. When you roll the spring over the shoes into the groove, make sure the part where the spring connects is situated in the middle of a shoe where it's flat and smooth. You don't want it anywhere near a joint or a moving part, as it will work it's way loose or snap...

well no harm done, but i was just explaining what i did with my spring problem so thats all i was saying....

thanx i got it on, its raining now, so im going to try it tomarrow, i will tell you how it goes ...

arrh .. my flywheel has a huge chunk tahken out of it.. can you get upgraded flywheel? or am i stuck buying the stock ones?

You need the stock flywheel, which are fine. What did you do to get a "chunk" taken out of it? That's pretty odd, seeing it's pretty nestled in there...

it might of been rubbing up against that metal plate on the brakes and he didnt notice it i done this once and i saw it and fixed it but my flywheel still had a groove wore in it

hello, i not sure what happend i might have hit it with a scrudriver when i was tuning the carb but there is about 1/3 of the riged part of the flywheel that is gone. arr.. now i broke the rims jumping it..hehe this is a fun rc truck, and thanx too everyone who has posted info.. it has help alot..

not exacty sure how one could take a chuck out of a flywheel. the rim problem, i would recamend getting a whole new set of rims and tires cus the tires you have are preglued to the rim. i would be a bad idea to take the tire off the rim. come to think of it, how big were the jumps you were taking your truck off. i mean, how high was it going? that had to be extremely high. ive hit a rock at whatever the top speed on the sv is and didnt break a rim.

i got like 4-5 feet of air and it went about 8-10 feet from the jump, i think the angle was too high.. and i did roll at max speed into a fence and tree.. hehe but its a trooper... i just got a 125cc fuel tank for the traxxas and just 4 new holes and some cutting... its in yahoo... but i need to angle the muffler or get a smaller one if possable.. let me know what you guys think.. and i put some traxxas wheels on it #3673 and some badass moab 2.2 on it... it handles much better.... i want to try bigger rims and tires and thoughts?? .... and sorry im a horrable speller...