The pulley wobble in the rear (on a diff) is acceptable as the pulley is designed to wobble a small amount on the diff balls. The belt center's the pulley. Just like on a ball diff axle for pan cars. Without the pinion the spur gear wobbles. Once you put the pinion on it centers itself.

I would think that a gear wobbling on a layshaft is a problem and gear adaptor is a problem. There is no way for the gear to center itself. If the wibble is significant enough, you will fell a high spot. You can't tell this on an electric chassis cause the pinion gear does not free spin. (with a clutch system, fuel on-road, you can ratate the tires backwards and feel the gear mesh...God I Miss my MRX-4)

Place the gear on flat surface, glass and see if there are relatively flat. Keep in mind that nothings perfect.. If the gear is flat then it should be flat on the layshaft. If its not that the bolt pattern is warping the gear. Just ream out thole and problems solved.

Is there a spell check on this system. My typing sucks.

Got some pics of my MS, just waiting for my VFS-1 Pro to arrive today and it'll be ready to rock tomorrow.

Aint she pretty

looks killer. big change from your xxx-s?

I'll know how it drives tomorrow, hopefully similar to the XXXS..

Wow, that is a nice 415, that is completly different to your xxxs

Chazz

Randy, what servo horn is that? I'm still using the Tamiya servo savor which seems to work fine. Are your using a full metal servo?

randy,

i just want to see what hte difference is. I heard a lot of good stuff about ceramics, reducing rotating mass and such. But i want to buy a set of bearings, and not go thru all the measurements and stuff myself. so if anyone can offer a website that has a set of trf415ms quality ceramic bearings for sale, that'd be nice.

and ur new born trf415ms is the cutest thing. that aluminum servo horn looks cool, where'd u get it? does it get rid of the slack that the tamiya horn has sometimes?

also, on the tamiya website, it said this:
"New rear bulkhead features heat sink capabilities. "

what does that mean? does that mean u can attach a clipon heat sink like the shaft cars can? or does it just mean the bulkhead now acts as a heatsink?

Order you set from Acer. Here's the link:
http://www.acerracing.com/

All the bearings are the same size (415 and 415MS) with the exception of the bearings in the hubbs. call Acer and tell them the size of the bearings you need for the hubs and they will swap them out as I don not think Acer has a set directly for the MS.

This means the rear bulkhead has fins machined into it so the bulkhead, itself, acts as the heat sink.
The only issue is the the MS does not actually come with this part as the description states...or at least the people I know who have the kit didn't get the heatsink bulkhead.

Carl G.,

I used the short button head screws from my yokomo sd kit to put the pulley on my spool and they worked perfectly. I think they were the screws that held the spur gear in place on my yok fyi. It looks like all the yokomo button heads are smaller than most.


Randy,

Looks good dude. Deffinetly let us know how it goes on Tuesday night, i might be in the area and make it to race on the tuesday evening after christmas.


Good Luck,

Blake

Ceramic balls are not plain ceramic, they are mild steel balls with a ceramic coating (I'm simplifying things, please do not flame). I have a set of ceramic balls in my TRF 414's diff and these diffs are just the smoothest i'e ever had (although it's not only the fact that they are ceramic, but also that they are selected for their roundness and they all are equal diameters, etc...). I've also got a set of ceramic bearings in it, and same thing, they're really sweet, they last long and require less maintenance.

Now, they won't give you anymore runtime than the stock bearings if you keep them in good condition. Also, keep in mind that on the MS (with evo 4 suspension) the wheel bearings don't last a lot of time, and this will be true for ceramic bearings aswell, even if they may prove to last longer than the stock bearings.

My advice is : get a 415 if you want and run it box stock, then when time comes to change the bearings or ball diffs, maybe you can consider ceramic ones. I found Acer Racing's stuff to be excellent for a good price.

Randy, did you trim the foam bumper (fender) or is that a different part?