R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Rookie Zone

Reply
 
Thread Tools Search this Thread
Old 10-20-2007, 07:13 AM   #1
Tech Rookie
 
Join Date: Aug 2007
Location: Newcastle upon Tyne, UK
Posts: 2
Default Diff tension/setup

I haveing been racing for a couple of months now and loving it, we run on polished wood where there is low grip but I am coming to terms with it, however last week my car was really tail happy and would snap into over steer. All settings remain the same I wonder whether my diff on my Mi3 has backed off/loosened up? It feels very free running and smooth but not sure if its right. Is there a rule of thumb when it comes to setting the tightness of a diff and how to check its ok??

Ollie
qcamel is offline   Reply With Quote
Old 10-20-2007, 12:50 PM   #2
Tech Regular
 
amain's Avatar
 
Join Date: Jun 2006
Location: ottawa ontario canada
Posts: 357
Default

the diffs should be nice and smooth. also u can dd more rear tow to your car to stop it form snaping out like that. also play with your rear springs and oil waights.
amain is offline   Reply With Quote
Old 10-26-2007, 03:08 AM   #3
Tech Champion
 
tc3team's Avatar
 
Join Date: Mar 2006
Location: UK
Posts: 6,151
Default

check both front and rear diff's just by turning the wheel and seeing how much resistance there is. If they both feel like they have the same resistance you should be ok.

some guys will tune their car with looser/tighter differentials but it can be difficult to master if youre not familiar with it, so just go for front and rear being the same for now

If anything run, the diff a little loose than a little too tight, as you can then try it for a lap, if it sounds like the motor is revving but not getting to speed properly bring it in, tighten and repeat until your happy

If you run the diff too tight from the start you can easily damage the thrust plates and balls
__________________
Fusion Hobbies / www.horshamrc.org

The wife stops me being sane and the r/c stops me from going insane....
tc3team is offline   Reply With Quote
Old 10-29-2007, 05:41 PM   #4
Tech Elite
 
edseb's Avatar
 
Join Date: Jan 2004
Location: Laguna Niguel, California
Posts: 2,422
Default

A trick Chris Tosolini taught me years ago. Grab the right rear tire and spur gear simultaneously, with your left hand rotate the left rear wheel. It should be tight but have a slight rotation. If the left wheel rotates freely, tighten it, if it doesn't move at all, loosen it. Make sure the diff is very smooth and has no gritty feel or notches of any sort. If it does you will need a rebuild. The tension should always be like this, the front diff is a different story, it should be slightly tighter as a rule of thumb since you are trying to get the car easier to drive, so less diff action up front will make the wheels spin a little tight closer to the action of a spool and lose less power through the diff action.
__________________
RC Car Action Editor and Photographer
Carl Hyndman
edseb is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Nip bce mbx5r chassis and complete diff setup. jpz_67 R/C Items: For Sale/Trade 9 02-23-2009 08:34 PM
mbx5t diff setup bounty Nitro Off-Road 7 08-14-2008 10:59 PM
4WD Setup...Diff Front, One way Rear? haulin79 Electric Off-Road 25 07-25-2008 12:41 AM
crt.5 diff setup bounty Nitro Off-Road 4 04-20-2008 07:53 AM
MSR-X5T Diff Setup korevo Monster Trucks 1 10-09-2005 08:44 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 05:27 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net