Need help noob ?

[Febe3000]

I'm new to the rc world and previously just bought what I think is a rs4 with a .15 motor but I'm having a problem with the motor coming loose after acouple of runs and for some reason the spur gear keeps stripping and I kno it's from the motor getting loose but is there any way I can buy a metal spur gear and some type of screws that won't come loose and also what's a good high performance clutch becus my friend told me my motor isn't stock and it will need a clutch any help I would appreciate it

 

[Candyman]

Keep it simple. As far as the engine (motor=electric; engine=nitro) goes, just make sure the screws aren't stripped in any way. Then head out to your hardware store and get some blue threadlock. Adjust the gear mesh and tighten the screws. Then remove one at a time. Put a drop of threadlock on the screw then screw it in and tighten it. Do the same for the rest. That'll keep the screws tight and keep the engine from shifting.

I recommend staying with the plastic spur. It's a good idea sometimes to leave one weak point in the drivetrain so in case there's a failure you know where it will happen. If you go with metal clutch/metal spur you'll just force a failure somewhere else. Possibly the clutch shoes or diffs. Which are far more difficult to repair. If you keep the engine secure and the gear mesh right you shouldn't have a problem with the spur.

As for clutch...don't know what to recommend. I'll leave that to someone else.

 

[Febe3000]

Yea I've tried the blue lock tight twice with the same result and I'm also on my second spur gear I'm trying to get my car reliable and beat out my friends that have bigger motors then I do

 

[HPI-Killer]

Yea I've tried the blue lock tight twice with the same result and I'm also on my second spur gear I'm trying to get my car reliable and beat out my friends that have bigger motors then I do

How old is the blue loc-tite your using? Also, when you apply it to your screws, make sure that the loc-tite isnt watery looking, it should be a thick blue pasty consistencty. Take baby steps now with your rig to make it better than your friends, or you will try to jump too far forward, bust something and give up.

 

[Greywolf74]

Are you sure the engine is moving or does it just seem that way because you're stripping the spur gear and someone told you that happens if your engine moves around? I'm just curious because you can also strip spur gears if your mesh is set to tight without the engine moving at all.

If you're sure the engine is actually moving then I would check the screws....If the thread looks worn at all I would replace them. If you have new screws and you are using blue lock tight then the only way I could see the engine moving around is if the engine mount is broken or since its not the stock engine maybe the person that replaced it used a motor mount from something else which may be causing the problem. Thats about all I can think of atm.

I agree with Candyman though, you generally always want your spur as the weakest link in the drive train. not only is it easier to fix but also less expensive. If everything is working properly and your have your mesh set right, you shouldnt ever have a problem using a plastic spur.

Sidenote @ HPI-Killer: blue lock tight isnt always a blue paste. It can be a runny liquid also. I have both types and the liquid works as well as the paste once they both dry and harden. Now if your lock tight is supposed to be paste and its liquidy then you might have a problem

 

[Febe3000]

Well I use the pasty one and all I can see is after acouple of runs the screws
For the motor would be loose probably from the vibration of the motor but I'm going to buy a new lock tight becus the one I'm using looks really old and I'm not to familiar with the word mesh what part is that and what does it do and thanx for the help I really am likening this new hobby and trying to gain knowledge to out build my friends

 

[Greywolf74]

I would replace those screws honestly. Consult the manual for that kit and find out the exact dimensions what the stock screws are and either buy them from your local hardware store like ACE (if they have them), or get the part number for the screws and order new ones. (If you want to buy good replacement screws in bulk so that you have the more common sizes at least on hand for missing or damaged screws you can get them HERE. Even without locktight your screws shouldn't be backing out after just a couple of runs. The only thing I can think of is they are either stripped or the wrong size to be doing that. Maybe someone used M2.5's instead of M3's or something. Thats the problem with buying used kits is you never know what the previous owner has done to the kit.

You can find a good video for how to set your gear mesh here. [ame="http://www.youtube.com/watch?v=E-XnDNFcKHc"]HOW TO MESH GEARS[/ame] For anyone new to nitro I suggest watching this 8 part video series. It will teach you a ton about nitro engines. [ame="http://www.youtube.com/watch?v=RRCsso8zcKs"]8 PART NITRO ENGINE VID SERIES[/ame] The guy that makes this 8 part video series has over 1000 vids either informational or how to's on RCs. His YouTube name is Squirrelod and his videos are what kept me afloat in the beginning when I first started out. He has a video for practically everything. For now start with those and as you progress go back and watch more YouTube videos of any kind. Jang from Ultimate RC has a bunch of good videos and so does DJMedic.

Some people like these guys, some people dont, some people like one but not the other, etc etc but regardless of what people say you can learn stuff from all of them. The only thing you should keep in mind when watching youtube vids is the sponsored guys are sometimes a little biased in their opinions but theres still a ton of good info out there.

 

[Febe3000]

Yea I'm going to start by checking the screws first and the threads to the motor and buying new screws to be sure it isn't the screws and thanx for the info I'm in much need of guidance lol

 

[hamz9561]

You might also look into Loctite #244. It's the blue Loctite in a stick form, kind of like chapstick.

 

[cwal1774]

Has anyone tried the Loctite tape yet? I have seen it advertised but haven't seen it in any of the local hardware stores around here.