Go Back   oOple.com Forums > Car Talk > Xtreme - VEGA

Reply
 
Thread Tools Display Modes
  #1  
Old 18-06-2013
technokit technokit is offline
Member
 
Join Date: Mar 2011
Posts: 54
Default Vega b4 gen1 gearbox tolerances

I've just bought a used vega b4 conversion and notice a lot play in gearbox where the ball diff bearings goes and the idler bearings. Is this normal? I'm using tape around the big bearing to solve this, there's also horizontal play as well. Around 2-3 mm movement with the ball diff.

Anyone experience this?
Reply With Quote
  #2  
Old 18-06-2013
MHeadling's Avatar
MHeadling MHeadling is offline
*SuPeRsTaR mEmBeR*
 
Join Date: Apr 2007
Posts: 4,241
Default

Bit strange as all the Vega gearbox I have had, gen1,2 have all been spot on.

There is some stuff called bearing retainer loctite produce:

http://www.loctite.co.uk/retaining-4479.htm

Give that a go?
__________________

www.rccarshop.co.uk
Reply With Quote
  #3  
Old 18-06-2013
coleman758 coleman758 is offline
Banned
 
Join Date: Feb 2011
Location: In a model shop spending more money!
Posts: 2,148
Default

Make sure you have the correct bearings!

The B4 is an imperial, The B4.1 & 2 are metric...

(I'm sure its that way around)

There is no way the box should have any play, the are all CNC machined so every box is exactly the same. Give or take a tiny tiny tolerance.
Reply With Quote
  #4  
Old 18-06-2013
Vrg1's Avatar
Vrg1 Vrg1 is offline
Member
 
Join Date: Apr 2012
Location: Hampshire
Posts: 86
Default

The bearings for a b4.1 are Metric which should solve the play issue.

Link below for correct size.

http://www.jemodels.com/electric-mod...tegory_id=1289
Reply With Quote
  #5  
Old 04-07-2013
technokit technokit is offline
Member
 
Join Date: Mar 2011
Posts: 54
Default Gearbox

Thank you for your reply guys!

I've measured the diameter and it's 11mm, could it be a gearbox for Kyosho rb5?
Reply With Quote
  #6  
Old 12-05-2015
NeilH's Avatar
NeilH NeilH is offline
New Member
 
Join Date: Dec 2011
Location: Bicester
Posts: 19
Default same problem with gen 3?

Quote:
Originally Posted by technokit View Post
I've just bought a used vega b4 conversion and notice a lot play in gearbox where the ball diff bearings goes and the idler bearings. Is this normal? I'm using tape around the big bearing to solve this, there's also horizontal play as well. Around 2-3 mm movement with the ball diff.

Anyone experience this?
I'm building a gen 3 B4 conversion and the problem is that the B4 ball diff has a large amount of axial movement within the gearbox. The internal width of the gearbox is larger at the diff than for the upper section with the idler gears (unlike the B4 gearbox), so there's nothing to hold the diff in position axially. Looks like I need a pair of spacers or similar, but doesn't seem like an especially elegant solution. Bearings are fine, unless there are some out there that are approx. 1.5 times longer? Does anybody have a solution to holding the diff in the centre of the gearbox?
Reply With Quote
  #7  
Old 12-05-2015
Roel Roel is offline
Member
 
Join Date: Jul 2009
Posts: 79
Default

You need the proper outdrives and bearings.

The gen3 vega is made for the B4.1, which is metric.
And the outdrives have an edge the bearings sit agianst making it wider, the b4 outdrives don't have that.

B4 :
http://www.amain.com/rc-cars/team-as...-asc7668/p8041

B4.1+
http://www.amain.com/rc-cars/team-as...sc9852/p165878

Last edited by Roel; 12-05-2015 at 12:50 PM.
Reply With Quote
  #8  
Old 12-05-2015
NeilH's Avatar
NeilH NeilH is offline
New Member
 
Join Date: Dec 2011
Location: Bicester
Posts: 19
Default

Roel - that's spot on, the outdrives with the ridge on them look like they'll do that exact job. I hadn't spotted them before because the place I usually order parts from displays the photo of them such that you can't see the extra ridge! Thanks a million for your help.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 02:02 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
oOple.com