any better diffs. available?    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version



All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> Redcat Racing Support >> any better diffs. available?
Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
any better diffs. available? - 3/22/2011 12:17 AM   
rsw007



Posts: 89
Score: 100
Joined: 12/28/2010
Last Login: 2/13/2012
From: lexington, SC, USA
Status: offline 		Well got my sons volcano epx truck running with the 8.5t brushless motor and 7.4 lipos. now it sounds like the gears are jumping teeth when u first take off, but i dont see it happening on the pinion to spur. so i took the diff out and packed it tight with some thick grease. i think the gear noise is coming from the diff ring gear to to driveshaft pinion. what should i do, or can i shim it or any upgrades? something else i should mention is i currently dont have the front axles in. waiting on the upgrade ones with the u.joints to arrive any day. currently running the stock 17t pinion, i tried a 16t but the driveshaft was dragging on the motor when i got the mesh tight enough. should i try a 18 or 19 tooth to remove some of the torque?

thanks in advance from a rc newbie.
scott w.

can take video if it will help.

< Message edited by rsw007 -- 3/22/2011 12:57 AM >

_____________________________

Volcano Epx with 8.5t brushless conversion

Hide Signatures
       Post #: 1

RE: any better diffs. available? - 3/22/2011 12:33 AM   
Allnighters


 

Posts: 60
Score: 100
Joined: 11/23/2010
Last Login: 7/9/2011
From: Logan, OH, USA
Status: offline 		Does the diff have "slop" between the ring and pinion? The earthquake 8E suffers from this. I shimmed the short shaft the pinion is on so it is tighter. Also lube these up good. It is the week point. When you power on it moves the shafts and diff with large amounts of force so you need tight tolerances. Someone posted a vid on you tube http://www.youtube.com/watch?v=2foA1XOyxc8  see if this helps


Hide Signatures

(in reply to rsw007)
       Post #: 2

RE: any better diffs. available? - 3/22/2011 12:51 AM   
rsw007



Posts: 89
Score: 100
Joined: 12/28/2010
Last Login: 2/13/2012
From: lexington, SC, USA
Status: offline 		heres a quick vid its getting dark here. http://www.youtube.com/user/rrssww007#p/u/0/AMEB8pDhxRE

guess i will have to tear the diff back out and see if theres any sisde to side play. Is the upgrade diff housings made to not deflect with the torque or just stronger for crashes? http://www.redcatracing.com/RC-Cars/Redcat-Parts/02051T

_____________________________

Volcano Epx with 8.5t brushless conversion

Hide Signatures

(in reply to Allnighters)
       Post #: 3

RE: any better diffs. available? - 3/22/2011 12:37 PM   
rsw007



Posts: 89
Score: 100
Joined: 12/28/2010
Last Login: 2/13/2012
From: lexington, SC, USA
Status: offline 		I did notice when repacking the diff that this truck only has one set of spider gears unlike all the rc diff vids i saw online had two sets of spider gears.

_____________________________

Volcano Epx with 8.5t brushless conversion

Hide Signatures

(in reply to rsw007)
       Post #: 4

RE: any better diffs. available? - 3/22/2011 3:06 PM   
nitrosportsandrunner



Posts: 8026
Score: 296
Joined: 9/1/2007
Last Login: 5/26/2013
From: skowhegan, ME, USA
Status: offline 		its possible that either the diff pinion/ring gear are slipping on eachother do to some play in the diff pinion.
shimming it may help.

its also possible that spider gears in the differential are damaged. i would open it up and check. if any are, you could just replace them.
or, you could use JB weld to "lock" the rear diff. it will make it stronger and locking the rear diff will give better traction.

_____________________________

Redcat Mirage Pro, Tornado EPX Pro, SC10, TTR Phoenix XB. Redcat Racing Dealer.

Hide Signatures

(in reply to rsw007)
       Post #: 5

RE: any better diffs. available? - 3/22/2011 5:08 PM   
rsw007



Posts: 89
Score: 100
Joined: 12/28/2010
Last Login: 2/13/2012
From: lexington, SC, USA
Status: offline
quote:

ORIGINAL: nitrosportsandrunner

its possible that either the diff pinion/ring gear are slipping on eachother do to some play in the diff pinion.
shimming it may help.

its also possible that spider gears in the differential are damaged. i would open it up and check. if any are, you could just replace them.
or, you could use JB weld to ''lock'' the rear diff. it will make it stronger and locking the rear diff will give better traction.


well i opened up the diff cause i read were some were dry or lightly lubed. i cleaned out the yellow grease that was in it and packed it tight with some thick royal purple racing grease i had in my shop. this helped it to spin both tires more often. i did consider packing it with play doh to lock it.

do you know the difference in the 02024 diff and the 02024t upgrade diff? how ablut the difference in the 02030 pinion and 02030t pinion or even the 02051 and 02051t housings?

_____________________________

Volcano Epx with 8.5t brushless conversion

Hide Signatures

(in reply to nitrosportsandrunner)
       Post #: 6

RE: any better diffs. available? - 3/22/2011 5:12 PM   
formula87



Posts: 780
Score: 106
Joined: 12/21/2009
Last Login: 3/24/2013
From: hampton roads, VA, USA
Status: offline
quote:

ORIGINAL: Allnighters

Does the diff have "slop" between the ring and pinion? The earthquake 8E suffers from this. I shimmed the short shaft the pinion is on so it is tighter. Also lube these up good. It is the week point. When you power on it moves the shafts and diff with large amounts of force so you need tight tolerances. Someone posted a vid on you tube http://www.youtube.com/watch?v=2foA1XOyxc8  see if this helps




Thats my vid!!!....... LOL ....................... I would check the diff "slop" most def................... but I read you have no front DS? that would make problems as you need all the shafts in place to get power to all wheels and the diffs need to be in proper working order.    But if the front DS is out I would put that back in and see where you are.


_____________________________

Traxxas Slash VXL / sold ECO
Traxxas Slash MMpro/17.5 Novak

Hide Signatures

(in reply to Allnighters)
       Post #: 7

RE: any better diffs. available? - 3/22/2011 5:46 PM   
rsw007



Posts: 89
Score: 100
Joined: 12/28/2010
Last Login: 2/13/2012
From: lexington, SC, USA
Status: offline
quote:

ORIGINAL: formula87


quote:

ORIGINAL: Allnighters

Does the diff have ''slop'' between the ring and pinion? The earthquake 8E suffers from this. I shimmed the short shaft the pinion is on so it is tighter. Also lube these up good. It is the week point. When you power on it moves the shafts and diff with large amounts of force so you need tight tolerances. Someone posted a vid on you tube http://www.youtube.com/watch?v=2foA1XOyxc8  see if this helps




Thats my vid!!!....... LOL ....................... I would check the diff ''slop'' most def................... but I read you have no front DS? that would make problems as you need all the shafts in place to get power to all wheels and the diffs need to be in proper working order.    But if the front DS is out I would put that back in and see where you are.


driveshaft is in, just waiting on the cvd axles to come in for the front. may just wait and see what it does when i put them in.

_____________________________

Volcano Epx with 8.5t brushless conversion

Hide Signatures

(in reply to formula87)
       Post #: 8

RE: any better diffs. available? - 3/22/2011 6:20 PM   
formula87



Posts: 780
Score: 106
Joined: 12/21/2009
Last Login: 3/24/2013
From: hampton roads, VA, USA
Status: offline
quote:

ORIGINAL: rsw007

heres a quick vid its getting dark here. http://www.youtube.com/user/rrssww007#p/u/0/AMEB8pDhxRE

guess i will have to tear the diff back out and see if theres any sisde to side play. Is the upgrade diff housings made to not deflect with the torque or just stronger for crashes? http://www.redcatracing.com/RC-Cars/Redcat-Parts/02051T



Watched that vid that sounds like the typical chatter that brushless motors make but when you are on the gas does it make noise? From that I think you are okay and sorry I was wrong about the DS you don't have the frnt left and rht CVDs in but where you running it w/o those in?


_____________________________

Traxxas Slash VXL / sold ECO
Traxxas Slash MMpro/17.5 Novak

Hide Signatures

(in reply to rsw007)
       Post #: 9

RE: any better diffs. available? - 3/22/2011 6:39 PM   
rsw007



Posts: 89
Score: 100
Joined: 12/28/2010
Last Login: 2/13/2012
From: lexington, SC, USA
Status: offline 		yes i was running it with out them in. just got off the phone with derek at redcat and he said that if it only does it on start up it might just be cogging in the brushless system. can timing or punch settings on my ezrun programmer help this? or will changing pinions help? i tried a 16t pinion but the motor hits the driveshaft knuckle. does anyone make a 68-72t spur to replace the stock 64t ?

< Message edited by rsw007 -- 3/22/2011 7:14 PM >

_____________________________

Volcano Epx with 8.5t brushless conversion

Hide Signatures

(in reply to formula87)
       Post #: 10

RE: any better diffs. available? - 3/23/2011 1:30 AM   
billymare


 

Posts: 381
Score: 105
Joined: 8/18/2009
Last Login: 5/16/2013
From: Islip , NY, USA
Status: offline 		Thats what I was thinking also...  sounds great after it took off.  That is normal with sensorles.  Sensored is way much smother..
quote:

ORIGINAL: formula87


quote:

ORIGINAL: rsw007

heres a quick vid its getting dark here. http://www.youtube.com/user/rrssww007#p/u/0/AMEB8pDhxRE

guess i will have to tear the diff back out and see if theres any sisde to side play. Is the upgrade diff housings made to not deflect with the torque or just stronger for crashes? http://www.redcatracing.com/RC-Cars/Redcat-Parts/02051T



Watched that vid that sounds like the typical chatter that brushless motors make but when you are on the gas does it make noise? From that I think you are okay and sorry I was wrong about the DS you don't have the frnt left and rht CVDs in but where you running it w/o those in?



_____________________________

Redcat''s a-plenty,savage XS,2 Savages,1brushless XL
Sprint2, Blitz, Terra Crusher,ast. planes, helicopters and a LOT m

Hide Signatures

(in reply to formula87)
       Post #: 11

RE: any better diffs. available? - 3/23/2011 2:00 AM   
basketballfan60123


 

Posts: 568
Score: 103
Joined: 6/3/2009
Last Login: 9/18/2012
From: Elgin, IL, USA
Status: offline 		That's nothing compared to what Savage Flux makes; talking about that loud chatter sound.
It sounds okay to me; my Aftershock 8E makes a similar sound like that.

_____________________________

I always tell the truth. Even when I lie. Al Pacino (Scarface 1983)

Hide Signatures

(in reply to billymare)
       Post #: 12

RE: any better diffs. available? - 3/23/2011 3:01 AM   
rsw007



Posts: 89
Score: 100
Joined: 12/28/2010
Last Login: 2/13/2012
From: lexington, SC, USA
Status: offline 		Well I filed 1.5 mm off the side of the motor housing and got the steel 16 tooth pinion on it now without it touching driveshaft. That helped a little, now I need to know if anyone knows if more or less timing or punch is best.

_____________________________

Volcano Epx with 8.5t brushless conversion

Hide Signatures

(in reply to basketballfan60123)
       Post #: 13

RE: any better diffs. available? - 3/23/2011 2:24 PM   
billymare


 

Posts: 381
Score: 105
Joined: 8/18/2009
Last Login: 5/16/2013
From: Islip , NY, USA
Status: offline 		This is Kurts flux and this thing in an animal!
http://www.youtube.com/watch?v=9rewG4dhjWM
quote:

ORIGINAL: basketballfan60123

That's nothing compared to what Savage Flux makes; talking about that loud chatter sound.
It sounds okay to me; my Aftershock 8E makes a similar sound like that.



_____________________________

Redcat''s a-plenty,savage XS,2 Savages,1brushless XL
Sprint2, Blitz, Terra Crusher,ast. planes, helicopters and a LOT m

Hide Signatures

(in reply to basketballfan60123)
       Post #: 14

RE: any better diffs. available? - 3/23/2011 9:58 PM   
basketballfan60123


 

Posts: 568
Score: 103
Joined: 6/3/2009
Last Login: 9/18/2012
From: Elgin, IL, USA
Status: offline
quote:

ORIGINAL: billymare

This is Kurts flux and this thing in an animal!
http://www.youtube.com/watch?v=9rewG4dhjWM
quote:

ORIGINAL: basketballfan60123

That's nothing compared to what Savage Flux makes; talking about that loud chatter sound.
It sounds okay to me; my Aftershock 8E makes a similar sound like that.



As a matter a fact I bought my Flux from Kurt; mine is a beast on a pair of 2s and I can only imagine what it will be like on 3s.
For now 2s is enough for me.
I saw on one of the running videos on your youtube that he had blow out too; was he running on 3s when he did the back-flip and had the blowout ?
I dread the day when that happens too me because it has already happened to my Aftershock 8E.

_____________________________

I always tell the truth. Even when I lie. Al Pacino (Scarface 1983)

Hide Signatures

(in reply to billymare)
       Post #: 15

RE: any better diffs. available? - 3/23/2011 10:07 PM   
basketballfan60123


 

Posts: 568
Score: 103
Joined: 6/3/2009
Last Login: 9/18/2012
From: Elgin, IL, USA
Status: offline
quote:

ORIGINAL: basketballfan60123

quote:

ORIGINAL: billymare

This is Kurts flux and this thing in an animal!
http://www.youtube.com/watch?v=9rewG4dhjWM
quote:

ORIGINAL: basketballfan60123

That's nothing compared to what Savage Flux makes; talking about that loud chatter sound.
It sounds okay to me; my Aftershock 8E makes a similar sound like that.



As a matter a fact I bought my Flux from Kurt; mine is a beast on a pair of 2s and I can only imagine what it will be like on 3s.
For now 2s is enough for me.
I saw on one of the running videos on your youtube channel that he had blow out too; was he running on 3s when he did the back-flip and had the blowout ?
I dread the day when that happens too me because it has already happened to my Aftershock 8E.



_____________________________

I always tell the truth. Even when I lie. Al Pacino (Scarface 1983)

Hide Signatures

(in reply to basketballfan60123)
       Post #: 16



Page:   [1]
All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> Redcat Racing Support >> any better diffs. available?
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.797RCU1