View Full Version : Arg... I hate my front diff still...
12-13-2006, 08:23 PM
Bah... This thing just doesn't want to work. I try shimming it... That made the diff action mess up. So then I take all the shims out and it still messes up. So I've been messing with this for like two weeks when I find the time.
Tonight I put one shim back in and tried it. The bind when reassembled was worse than before. So I tried one of my old pinion gears out of an old diff and that didn't work. I tried an old ring gear and the new pinion. Still no dice. So now I tried both gears being ild in the new case. That works, but the diff is kind of noisy. Like there's no grease in it, but there is.
Arrgggg... This is making me mad lol. I had an issue with the primer and the the base on my CVD's to because I painted them. I got them all cleared (well, at least the front three CVD's) and one fell of the bench. The paint didn't bond to the primer very well at all. It chips right off.
That's enough RC work for me tonight... <_< .
12-13-2006, 08:33 PM
As for the diff, it actually sounds to me like your diff cup may be warped in some way. You've tried a new diff case and different gears, and they all didn't work. I think its the cup.
12-13-2006, 08:40 PM
I'm using the same case... It's one with the four screws. Everything else is what I'm changing. I think that it will work now, but it sounds rather noisy...
12-13-2006, 08:41 PM
That does suck, sometimes it seems no matter what you do, how hard you try your truck looks at you and says "yeah Right" and it just irks you to no end. ...
12-13-2006, 09:02 PM
Maybe you should just get new diffs, lol.....(just kidding)...
12-13-2006, 09:04 PM
Lol... THEY WERE NEW!!!!
Hmm... I don't know... I'm mad lol... I know that I'm not going to touch the rear one. Not even to put Team Blue Star bearings in it. Not after all of this rig-a-maro...
12-13-2006, 09:17 PM
Hmm... I'm not sure what I'm going to do. The big problem is that I know one of my two older diffs clicks. That's why I bought two new ones. Would a clicky diff sound like the gears aren't lubed when they are? Or could the extra noise be due to the fact that those old diffs are as old as my truck (over 5 years old).
12-13-2006, 09:23 PM
I dont know....My old diffs click a little too, they are only 2 1/2 years old too...
12-14-2006, 05:48 AM
I ended up putting all old gears in the old case and it works. Too bad the new gears don't work in the new case <_<...
Whoops... Gotta' go :unsure:... Later...
12-14-2006, 10:27 AM
i say run them and let them "break in" i noticed my e-maxx tranny makes alot of noise im hoping it's normal here is an idea take the diff action out and put in a spool i have no troubles
12-14-2006, 02:57 PM
They shouldn't need to be broken in... My newest ones have around 10 runs on them. They never bound up before and I haven't changed anything...
12-14-2006, 03:39 PM
well if they are binding something is wrong take them back down and clean them look every thing over VERY close then put them back together dry see if they still bind then if they dont add lube and run them
12-14-2006, 04:52 PM
I've done that multiple times... That's why I'm getting so frustrated.
Well, I sanded down one CVD and decided just to hit it with some black. It's like the paint isn't sticking at spots. I prepped it properly. The paint just doesn't want to bond, no matter what kind I use. Ahh....
12-14-2006, 04:56 PM
hey just run it and see what happends ....... as for the paint i bet it's cuz the CVD's (id assume they are MIP's) are chromed try and get the chrome off then primer then the top paint if it comes down to it take it your local auto body paint shop they should know
12-14-2006, 05:00 PM
My CVD's (made by MIP, sold under the Pro-Line name) were black. I've sanded them down to the metal. I may just take them all up to the shop over Christmas break when we're up there and get out the automotive paints and such. This isn't the first time I've painted them and the finish just chips off. I'd say some automotive paint would do the trick... Unless I can get the stuff I have here to work.
I was thinking about just clearing the metal for a natural look, but if I cannot get the paint to bond in the first place, the clear won't stick either. Maybe I'll try to find some more course sand paper and see if that helps it bond. I don't know........ I've never had so many issues painting metal lol.
12-14-2006, 05:48 PM
I just priced a diff case today and it wa only 4 olars with a diff collar included(the part I really need). I would get a ne case and see if the new gears work in it.
12-14-2006, 08:48 PM
Did'nt you sell the knuckles for your E-maxx Tom? If so, how are you going to use these CVD's? Get those 3.3 shafts!
12-14-2006, 09:06 PM
wow that is wierd! I used stock diffs in my HV E-maxx for its hole life! I had to replace the rear diff once (it just died) but the front was OK!!!! I had no problems with them for 8 months!
12-14-2006, 10:02 PM
Did'nt you sell the knuckles for your E-maxx Tom? If so, how are you going to use these CVD's? Get those 3.3 shafts!I still have them, but am still trying to sell those... I still have the stockers and since I bought a full Team Blue Star bearing kit, I'm using the stockers and those bearings for now. I don't have the money to spend on the 3.3 shafts right now. I still need an ESC and motor for my Sledge Hammer lol.
Ebay: Yeah... I have no idea what's going on, but my truck just hates me lol.
So I ended up sanding down that CVD... Again (<_<)... I ended up sanding it pretty nicely and have cleared it. It has a nice brushed metal look :cool:. The clear took so I'm good now! Now I just have the other ones to do lol...
12-15-2006, 01:34 PM
Well at least you got the CVD's done.....
12-15-2006, 04:14 PM
Well one of them lol... I got one more sanded down and cleared this morning. I'm getting a diff from Ebay Emaxx too (thanks again!), so I'll put the rear I have in the front since that one works and then the front will be done. Then I need to put the servo from my 'Pede in the E-Maxx for use as the shifter servo and then I'll clean up the center of the truck and get the new tranny mounted up. I'm probably going to run another old set of Titans since I still have a few. I'll run them all into the ground before I buy new ones this time. By then, I'll have the other diff and I'll get to work on the rear. So far the front looks brand new! I used armorall and cue tips instead of WD-40 this time. A few weeks ago when I was working on that, my brother came in and asked where I got the money to buy all new parts :cool:... Lol...
12-15-2006, 08:50 PM
Okay... I got the front center sanded and cleared and I got the one front back together. I can't seem to find one of the set screws for the center to hold the pin in though. I'll find it some time... I've still been tinkering with that diff though. I just cannot get it...
12-15-2006, 09:16 PM
I just spent some more time tinkering with that darn diff. I ended up taking an old cup and mounting the newer ring gear to it. Then I put that and the newer pinion in the new old case. No dice... Then I tried the old pinion. Still no dice. It's always binding no matter what I do. In one spot for about a half turn of the pinion. The only common part is the ring gear.
I don't see how that could have gotten messed up, but what does anyone think about finding the spot where it's off (by turning the pinion). Then slowly filing a few teeth in that area and keep testing it. Do you think that would work at all? I just don't understand what changed. I opened the diff, packed it with marine grease, installed Team Blue Star bearings, closed it up and that it was binding. I just don't get it lol...
12-15-2006, 09:59 PM
Good luck filing those things. They are super hardened!
12-15-2006, 10:41 PM
Good think I didn't try then huh? Lol... Thanks for the heads up! I tried one last thing and that didn't work either. It just doesn't make sense at all. I don't get why in the world it's binding. It didn't do that before... <_<.
12-15-2006, 10:41 PM
you could try to file them. i think it would add up to more frustration. i would try getting a new ring gear.
12-15-2006, 10:47 PM
Yeah... Like I said earlier, ebay emaxx hooked me up with a working diff :), so I suppose I'm set there. I just wanted to keep trying since I found the ambition, but still came up with the same issues every time...
12-16-2006, 09:31 AM
That's weird, I hope you find the real problem.....I do remember one binding problem I had awhile ago, but I just shimmed it and it worked fine.....
12-16-2006, 11:12 AM
I'm done messing with it for now...
12-16-2006, 12:00 PM
I'm done messing with it for now...Yeah, maybe that's the best thing for now, maybe you should take the diff out and throw it in the bayou so you wont think about it anymore, lol.....
12-16-2006, 11:47 PM
Man lol... I was thinking about doing that exact thing before I took off today... I thought "I should just go throw these in the bayou and be done with them." They'll stay out of water to run another day.
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