Drivetrain Woes - Page 3 - RC-Monster Forums

shizzon · 12.09.2008, 10:15 PM

Quote:

Originally Posted by JERRY2KONE

Have you tried contacting Dan at Kershaw Designs yet

. Even if he does not have what you need he can have custom stuff made up. It's worth a try.

To be honest with you I haven't...I am completely out of money unfortunately. Basically my girlfriend hasn't received her loans for school (it is the end of the term) because of a stupid issue where her SS# showed that she was deceased, and as far i I know they don't give loans to deal people. So anyways I have basically been paying for alot of her needs from my loans and i have run out unfortunately. perhaps after Christmas, or sometime next term, but as of right now im just trying to eat and get over this horrible throat infection that i have.

Unsullied_Spy · 12.10.2008, 04:39 AM

Quote:

Originally Posted by E-fanatic

Man 4 batteries down and 5 driveshafts gone. I am now at 90% punch control. This freakin blows. If the new BE e-revo comes with these driveshafts there is going to be alot of upset owners( I know I'm not happy at all) I just want something relieble and dont want to go threw 4 different brands to get it b/c I'm not rich!

The BL edition has the new driveshafts like the Summitt will have. They should be an improvement over the current driveshafts. Are the extended rear arms swept back too far to run CVDs? A poorly-built drivetrain is the #1 reason I sold my BL Revo and got a Truggy (Losi Muggy, weak control arms but you can't kill the drivetrain).

E-fanatic · 12.10.2008, 05:30 PM

My brushless lst2 had a bulletproof drivetrain! I am hoping I can get this revo that way or I will have to get rid of it. I will see what dan at kd has to offer. It will have to wait until after christmas b/c I'm broke too!

E-fanatic · 12.11.2008, 07:08 PM

Well I picked up a set of vantage racing cvds and they fit with the extended rear arms. I will find out how durable they are this weekend. I am just happy they fit without issues!

E-fanatic · 12.13.2008, 06:31 PM

Well 3 runs and the pop metal vantage racing cvds all broke! The plastic ones are holding up better. Man I am pissed. I just wasted money on junk !

JThiessen · 12.13.2008, 07:24 PM

Quote:

Originally Posted by E-fanatic

Well 3 runs and the pop metal vantage racing cvds all broke! The plastic ones are holding up better. Man I am pissed. I just wasted money on junk !

Instead of blaming all the different shafts that you continue to break, you might want to consider that you "wasted" you money with those extended arms. Just a thought.

E-fanatic · 12.13.2008, 08:03 PM

Tell me why the front ones broke first and how the he11 does that have anything to do with the extended REAR arms? The rear ones held on the longest. I dont see how with what little power I am putting out it is snapping metel shafts.

I would easly take off the extended rear arms if I thought thats what broke the cvds but no way was it the arms! I have also moved my arms to the 10mm instead of the 19mm (to help with turning)

JThiessen · 12.13.2008, 08:38 PM

Quote:

Originally Posted by E-fanatic

Tell me why the front ones broke first and how the he11 does that have anything to do with the extended REAR arms? The rear ones held on the longest. I dont see how with what little power I am putting out it is snapping metel shafts.

Well, its going to be tough for us to diagnose on here, but as stated before, pics would help.
Something other than the shafts is causing your issue. You have broken far too many compared to what others are experiencing - and your not running any more power than most others here.
Recheck all of your suspension. Make certain the arms are all on the right direction (I found out I had been running my RPMS upside down after a year of running it - even though I know I double checked it). see if you might have bad bearing in the axle carrier, or possibly the wrong bearing, that would allow excessive slop in the axle.
Since this one was a front, was its damage different than when you broke the rears? I experieced bent metal shafts when I ran them with RPM Arms, thus I converted to plastics, and havent experienced any problems (other than loosing C-clips).

You just have to take a step back, and remember that often the symptom is not the cause of the problem!

Unsullied_Spy · 12.13.2008, 08:10 PM

Can you post a pic of the busted CVDs?

If you are on the brakes really hard that could put some stress on the shafts, but they should have held up longer than 3 runs.

E-fanatic · 12.13.2008, 08:23 PM

My motherboard died on my computer so I am on my wifes wii system. So I cant post pics until I can get to my brothers house. Will try tomorrow! I have my brakes set to 35% now so they dont grab hard. Also have my punch on 100% and my slipper loose. I would really have to try to even get a wheely. The fist one broke just turning in the yard 3 mins in on there first run. The others broke running on the track.

shizzon · 12.13.2008, 11:23 PM

This is exactly why i didn't go out and buy a set of cvd's, it seems that they dont do much for durability. I also contacted Dan at Kershaw designs as he pretty much said that he would not be able to make anything better that whats out there.

It seems like the best alternative would be to see how the Summit drive shafts hold when they finally com out. I wish a high caliber company like UE would come out with a set, but it seems like the dont come out with new products anymore....

JERRY2KONE · **Unfortunitely. -** 12.14.2008, 01:26 AM

Yea unfortunitely Robin at UE said that making stuff for the R/C community just was not proffitable anymore, hence nothing new or even anything for replacement parts available. From all of the garb on the forums it seems that he has moved on to the harley Davidson hop-up products to make his fortune. That is a very sad thing for us. UE is the best stuff out there.

Why don't you try talking with Bill at RC alloys and see if he would be willing to fab something up that everyone could use in that class? He will need specific measurements and maybe a sample of what you want, but he is pretty resourceful with his business. Or even talk with MonsterMike here at RCM and see if he can help. That is what these guys do.

Quote:

Originally Posted by shizzon

This is exactly why i didn't go out and buy a set of cvd's, it seems that they dont do much for durability. I also contacted Dan at Kershaw designs as he pretty much said that he would not be able to make anything better that whats out there.

It seems like the best alternative would be to see how the Summit drive shafts hold when they finally com out. I wish a high caliber company like UE would come out with a set, but it seems like the dont come out with new products anymore....

E-fanatic · 12.14.2008, 05:12 PM

Well, I just got 2 sets of the mip1665 cvds ( these are huge{the same size as the ones that were on my lst2} and harden steel) They were $65 for 2 so it was $130 total. I just went out to try them and wow they worked like a champ! I bet I will kill the diffs before these cvds!
P.S. They also fit the extended arms with out issues.

shizzon · 12.14.2008, 06:40 PM

thats good to hear, hopefully they will hold up for you. If they do i might have to consider a set for myself.

E-fanatic · 12.14.2008, 08:01 PM

I have put another battery pack on the cvds. I was afraid that I was going to break somthing b/c I was really hard on her. I just want to make sure they are going to hold up! I was harder on the trucks drivetrain this last battery than I have ever been. I pulled off a tripple back flip off a ramp too! It was sweet. I took off the wheely bar to do a few standing backflipps. The mips are doing well so far.

The vantage racing cvds have a 4mm shaft and the mips have a 6mm shaft! The cups are 2mm thicker(much more metal) on the mips.