I'll take it apart again and see whats going on.

I hope there's nothing wrong with it.

Well I found it, didn't rebuild it correctly.

Now I still have to look at the rear diff which keeps leaking.

Glad to hear you found the problem with the center diff. :yes:

As for the rear diff, make sure you have a gasket (I think its plastic, but not sure) on the inside of the spur gear. I accidentally threw it away a while back because I had no idea what it was. Low and behold I needed it... so digging through the trash I went to find it. :whistle: :lol: I did find it by the way. :wink: :rofl:

I still have the gasket in place (blue coulered). I think I'm going to order a new one.

Also there is this little grub screw in the diff. I wonder if the oil is leaking through it. Any idea what to put on it jus in case. I don't thins thread lock will work with plastic.

Or maybe I should run thicker oil ?

As I'm still awaiting some stuff, I tried to fit a Hitec 5245Mg on the stock chassis.

With this servo comes an alu servo horn. But the holes are too small to fit the CRT's ball studs (as are all my plastic horns I have).

What did you guys do concerning horn/ball stud ?

i just enlarged the hole in my aluminum servo arm, its holding up just fine

Yup, just drill the hole out, and then use a nut on the ball stud. You could be tap the servo horn. But thats to much work IMO lol

HI all, its been a while and only today I have run the car for the first time.

Is it normal that the crt slows down really fast when going off the throttle? I doens't free roll like I'm used to with my other brushless cars.

Can't see/feel any binding or resitance when I check the car.

I'm not impressed with the diffs. They keep leeking and around the center diff the chassis has spray marks from the diff oil. Maybe I should order some new gaskets ?

Next week I have several parts coming from Impakt (after 4 weeks of waiting - mainly for the Medusa 3300) and I'll post some pics of it.

Do you have the drag brake enabled on the ESC? The diffs in my CRT.5 haven't leaked a drop... are you sure you assembled it correctly with all the washers, gaskets, etc?

Since I bought the pro kit it came assembled and the rear was already leaking.

I took them apart and filled them with 1 - 3 - 3 (r-c-f) and can't see what I could have done wrong.

Since I have an extended chassis coming, i'll take them apart again and check.

You get a tiny bit of spray right after you build them as the excess is thrown out (if you don't wipe it really clean), but I've never had mine leak after that.
I was always impressed with the diffs. They were quite a bit beefier than the ones in my Revo lol.

IIRC, there was a batch that had issues with the o-ring or gasket, and it would leak. Subsequent kits didn't have that problem. Maybe call your LHS and see if they've heard of this and what exactly to replace.

I received my stuff from Impakt yesterday (had to pay 90€ extra on customs -damn).

So I now have a Medusa 3300 but I noticed that the 5mm shaft is round and has no flat piece for the grub screw. Did yours also come completely rounded?

So I need to replace the chassis, install the motor and my new Traxxas All Star wheels + Anaconda tyres. Still have to do the body.

Concerning the diffs : I'm going to put Green Slime around the O-rings and maybe on the inside if the diff gear where the gaskets sit to prevend further leaking. Would this affect the diff action ?

Green Slime (or any other "heavy" grease) on the o-rings and gasket is a good idea, and won't affect performance.

Many motors come without a flat spot on it from the factory. You can just use a dremel or grinder wheel to flatten a portion of it. :wink: