Dog bone fix.

[Skynet5]

Is there a fix for this?

I noticed it had move, tried to push it back in and it moved back.

It's still pretty firm, but at speed....

 

[TBuggy]

They make a tool for that. https://www.rcrenew.com/tools.html

Use thread lock to keep them in place.

 

[Skynet5]

It's only lasted a 12 packs. Pretty disappointing

 

[Billl DeLong]

not an uncommon problem, chances are you simply need to replace the pin, there is a tolerance factor and that particular pin just might be a hair too thin in diameter. A drop of thread lock will help secure it in place as well, more info here:

Pin Replacement Tools

 

[Skynet5]

OK. Will read up. Pin is still pretty tight so whacked some thread lock in and pushed it into position. Will use for a practise this weekend and see how it fair up and then look for pins and tool replacement in the UK.

 

[Billl DeLong]

Just make sure the source for your pins are "hardened steel", if they are not "hardened" then expect the pins to wear fairly quick

Also plan for about 10% of the pins you buy to be tossed in the trash because they are too thin to hold in place due to variance, nobody is 100% perfect

 

[Skynet5]

Would these do the job?
https://www.modelsport.co.uk/hudy-s...ve-shaft-pins-3x14-10-/rc-car-products/359898

i've pushed the pin back in with some force done on my work bench with some thread lock around it. I feel like it wont move easily.

 

[Billl DeLong]

Yes HUDY makes very high quality pins and chances are you won't have any bad pins from them.

 

[Klappars]

@Skynet5


A guy in the UK makes driveshaft pin replacement tools. I bought one a few months ago from him, haven't used it yet.

https://www.msuk-forum.co.uk/forums...ing-pins-25mm-or-3mm-in-driveshafts/#comments

 

[Skynet5]

Hi mate. Yes I've ordered the 3mm one yesterday . Hopefully will be shipped next week. I got the last 3mm one.

Thanks for the consideration!

 

[Nicochau]

Alternatively you can use tools meant to replace chain links on bikes. Not as efficient, but better than nothing.

 

[Skynet5]

So I got the tool and I've got the huddy pins. They are all easy to push through with the tool screwing it by hand. Not so easy on the other side.

So I suspect the driveshaft is a dud. Shame. I bought a spare, but feel a bit annoyed as warranty options are such a pain and it hasn't done many packs.

I did have an hour on the track at the weekend and it didn't come loose again, and that was with some loctite around it.

 

[TBuggy]

Have you mentioned this to Tekno at all...they may just help you out if they decide its a defect?

 

[Skynet5]

Have you mentioned this to Tekno at all...they may just help you out if they decide its a defect?

Good point. I've sent them a Web form mail.

Hopefully they'll give me a straight discount code and let me order another one.

Don't really want to be shipping it off etc cost me as much in postage as a new one. Lol

 

[TBuggy]

They have done this for me a couple times.

 

[Skynet5]

They have done this for me a couple times.

I'm also looking at loctite retaining compounds. Apparently used to allow manufacturers to lower the tolerance of parts in cylindrical parts.

It's some serious stuff. So a solution to the problem.

For the time being I've put some blue loctite in and I'll see how it fairs. I have a spare that I bought if needed.

What's nice is if the pin did come out, it wouldn't strip anything as there is nothing to lock up the drivesaft on the eb48 2.0

 

[Skynet5]

Good news. Contacted tekno, and our UK distributor and they have sorted me out. Distributor is getting one sent out to them with their next order to then be sent out to me on my next order or parts.