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-   -   Gorilla Driveshaft problem (https://www.rc-monster.com/forum/showthread.php?t=669)

sforsancho 06.06.2005 04:44 PM

Gorilla Driveshaft problem
 
For those of you that are members of the UE boards, here is the thread: http://www.unlimitedengineering.com/...t=6364&acon=39

Quote:

Originally posted by Zoom Zoom
Has anyone had this happen to them? It seems like my dogbones are to short, I purchased a http://www.unlimitedengineering.com/...re/13513T.html (part #13513T) NIP from eBay, and it doesn't seem like the front bone will fit correctly; when it spins it travels up and down, just barely inside the drive cups, if it is jammed al the way forward. Pictures do a thousand words so:

I don't know if you can see it, but it's just barely inside:
http://img.photobucket.com/albums/v3...ermaxx2008.jpg

The back one sits just fine, a little loose.
http://img.photobucket.com/albums/v3...ermaxx2009.jpg


sforsancho 06.06.2005 04:46 PM

Re: Gorilla Driveshaft problem
 
Quote:

Originally posted by Zoom Zoom
I really thought I had this licked for a moment, but the supplied 6mm drive cups won't fit on the input gear shaft for the differentials. So here's my try at some better shots.

All the way back (no problems here, transmission cups prevent it from going to far)
http://img.photobucket.com/albums/v3...ermaxx3021.jpg

All the way forward. This is where I believe the problem is; the cups allow at least ~6mm of movement here, and the dogbone begins to fall out near on the transmission side.
http://img.photobucket.com/albums/v3...ermaxx3019.jpg

Any ideas are welcome, I have not tried the fuel tubing one, but I'll get on it.


maxxdude1234 06.06.2005 05:31 PM

Are you sure that they are not the stock length centre drive shafts, and you are not running an extended CF gorilla chassis?

Serum 06.06.2005 06:11 PM

1 Attachment(s)
@maxxdude;
It's the frontside of the truck. The ext only extends the truck on the rear.

@sforsancho;

Welcome! i saw your post on the UE forum.


the problem is more clear to me now;

You need to use O-rings on both sides of the shafts, to keep it more centered.

You don't need the bone to go in the entire cup.

If i look at your picture, you would be fine if you use the o-rings to center the bone.

Look at the exploded view/instruction of the HPI savage, to see what i mean; here is the link. You can see an o-ring (6811) going into the drivecup, this is to prevent the bone to get in too deep.

On the picture i included you can see that over 1/2 way out off the cup is normal. due to the fact that it ain't cvd's who are fixed on one side, you get this 'problem'

And if you don't have got a good feeling about this; there is a company named rcalloys, who makes customized dogbones. (not needed though)

Dafni 06.07.2005 03:10 AM

I agree with Serum! AN O-ring per cup will solve your problem.

I always use 8x4mm O-rings (outer x inner diameter).

DAF

RC-Monster Mike 06.07.2005 09:36 PM

I use fuel tubing to accomplish the same thing.

supermaxx4190 06.11.2005 06:26 PM

im having the same problem, where do i put the fuel tubing?

RC-Monster Mike 06.11.2005 09:44 PM

Put a small piece of fuel tubing into each drive cup before you insert the dogbone. It keeps the dogbone centered in the cups.

supermaxx4190 06.11.2005 09:54 PM

oh i see thanks, i thought it went on the dogbone


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