Another 8ight-T 2.0 conversion

[Shark413]

As I reported earlier I am running a Smart Diff in the center and the truggy didn't feel right. It didn't seem that the SD was working correctly, too much power was still transferring to the front. So I opened it up and found a couple of problems. First, all (or most) of the grease was gone, apparently even when it seems to be full of grease the centrifugal force causes the grease to squeeze into all the open spaces around the outside of the diff, leaving the middle dry. Secondly I had accidentally rebuilt it using the 90 degree ramps which don't lock as aggressively. So I added the 120 degree ramps, removed two of the four .15mm springs, and regreased everything. Hopefully this will get it to lock up a little faster and more aggressively.


All the grease is around the outside, with nothing in the middle.


Dry diff


90 degree ramp on the left, 120 ramp on the right.

[Overkill]

Are you going to regrease or will you use some diff oil and fill her up? Maybe 3K or something like that, just to keep the gears lubed

[Shark413]

Originally Posted by Overkill

Are you going to regrease or will you use some diff oil and fill her up? Maybe 3K or something like that, just to keep the gears lubed

Overkill, I have been told by others not to use silicone diff oil in the SD because it is not a good lubricant. Some have tried stuff made for cars (Mobil syn oil) but I am sticking with the Losi grease, I just made sure I really packed it in there this time.

the neu castle 2200s do sure seem to run cooler then the 2650's.

Im glad I got the bigger tekin 1515 size for my buggy.

youre not the only one to experience temp problems with the 2650 shark.

most everyone around here can put in 25 min on a 2200 and come off with real cool temps just like you

[Shark413]

Originally Posted by bradfox2

the neu castle 2200s do sure seem to run cooler then the 2650's.

Im glad I got the bigger tekin 1515 size for my buggy.

youre not the only one to experience temp problems with the 2650 shark.

most everyone around here can put in 25 min on a 2200 and come off with real cool temps just like you

Bradfox2, roger that. Since I switched to the 1515 size motors the temps have been excellent and they are only a few grams heavier than the 1512 sized cans. The 1515's run cooler and give you more battery/gearing options.

[Brian]

hey, im about to convert my own 8ight-t and was wounderin if u had to get new screws for the losi motor mount. I've heard some people having problems. Love ur conversion btw, helped me alot in my reseach