Fordmods Logo

Question about LSD and if its worn? 

 

Page 1 of 1 [ 9 posts ] 

 
 Post subject: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 12:55 pm 
Getting Side Ways
Offline

Age: 29

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

G'day

I have a 3.9 Lsd in my car, the 4 pinion 28 spline diff. Just have a question about how the LSD works.

I just went for a drive before and its raining outside at the moment and the roads are very wet. I took off from a T intersection and turned right. The inside wheel while turning started to spin up then all of a sudden both locked up and the just went sideways.

Is this normal or does it sound like the diff is worn?

Cheers

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 1:05 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 623

Joined: 24th May 2007

Gallery: 9 images

Ride: 97 TICKFORD XR6 Manaul

Location: Aldinga Beach
SA, Australia

first lsd????? if so be carefull you need to drive differently compared to a open wheeler
sounds normal for a lsd specially if you give it just a little to much on a very wet road

mine still catches me out every now a again

if 1 wheels starts to spin the power is sent to the wheel with most traction but when that lets go both will spin which = sideways
Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 1:09 pm 
Getting Side Ways
Offline

Age: 29

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

ah i see, i have had this LSD in my car for quite awhile i just never do burnouts or take my car sideways. I mainly got the diff for extra traction. So nothing to really worry about? I have been in other cars with LSD and they kick out side ways as soon as they turn and put there foot down.

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 1:10 pm 
Smokin em up
Offline

Age: 28

Posts: 270

Joined: 13th Dec 2010

Ride: ba xr6t ute

Location: perth
WA, Australia

my "lsd" the wheels spin oppersite ways when on the hoist, i belive this means i have a fubard diff? still works like an lsd thou...
Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 1:18 pm 
Getting Side Ways
Offline

Age: 29

Posts: 4182

Joined: 30th May 2005

Ride: 1993 EB XR8

Location: BrisVegas
QLD, Australia

it's not stuffed, yet. Once they single, they dies in no time.

 

_________________

ILL60 - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 347, AFr185's, TFS BoxRcustom converter, Hurst Quarterstick, huge billet cam.

51TER - DL LTD. Stock.

Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 4:55 pm 
Getting Side Ways
Offline
User avatar

Age: 30

Posts: 1507

Joined: 14th Aug 2009

Gallery: 12 images

Ride: BA XT V8

Location: Gosnells, Perth
WA, Australia

depends on how much you put into it when goin around the corner.
if you didnt put much in it and one wheel spun for a bit its probly fine. just takes a certin amount of torque to engage the lsd clutches.
but if its spinnin hard one wheel then yea its fudged.

 

_________________

BA XT V8. Ice Mint. 18" Speedys. XR6T LSD. Full Pacemaker twin 2 1/2inch Stainless Steel system. Custom CAI. Black XR interior with white trimming. Powerbond underdrive kit 25%.
13.65@102mph. 2800 hi-Stall.
230RWKW@5250 rpm. 625NM.

Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 5:00 pm 
Technical Contributor
Offline
User avatar

Age: 38

Posts: 4093

Joined: 20th Mar 2005

Gallery: 2 images

Ride: 2.0 Turbo VW

Power: 142 rwkw

Location: Seaford State:
VIC, Australia

'Limited Slip'


There is no clutches in a BW78 its a basic cone setup and at around 70nm is the breaking force (iirc)

You can tighten them up, swap over cones, install stronger springs, throw bolts inside the springs to act as a spacer, and the list goes on.

Usually a few figure 8's in reverse will 'tighten' them up a bit (hone them) along with a thick oil.

at the end of the day, they're single peggers with a bit of tension

 

_________________

Carefree, we may not be number one, but we're up there.

Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Thu Mar 24, 2011 5:23 pm 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

JIM89 wrote:
my "lsd" the wheels spin oppersite ways when on the hoist, i belive this means i have a fubard diff? still works like an lsd thou...



no, that means your diff is a single spinner..

lsd even when worn both wheels will still rotate forward without any load..
Top
 Profile  
 
 
 Post subject: Re: Question about LSD and if its worn?
Posted: Sat Apr 02, 2011 2:09 am 
Smokin em up
Offline

Age: 28

Posts: 270

Joined: 13th Dec 2010

Ride: ba xr6t ute

Location: perth
WA, Australia

hmm, im guessing the previous owner shagged it and skimped when puttin a new one in.
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 9 posts ] 

Who is online

Users browsing this forum: balizticbobo and 16 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum
cron

 

 

It is currently Tue Dec 19, 2017 9:49 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names