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banuet
Samba Member
Joined: March 28, 2007
Posts: 8
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 Posted: Fri Jun 22, 2007 6:55 pm Post subject: limited slip differential |
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With the two back tires in the air, if I turn a wheel by hand, the other one turns in the same way, but with the left back wheel in the ground and the car raised in the right side, only the right wheel has traction... when I hit the clutch the left wheel has a little traction and slides a little on the pavement...
1.- did a previous owner changed the differential?
2.- do I have it but it doesn’t work?
3.- is that all the response that I am supposed to expect from the limited slip differential?
4.- none of the above.
please help. |
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Bruce
Samba Member
Joined: May 16, 2003
Posts: 17288
Location: Left coast, Canada
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| Posted: Sat Jun 23, 2007 12:52 pm Post subject: |
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You may have a LSD.
Incorrect or old oil can affect how it reacts when you jack it up. To know for sure, remove the drain plug and have a look up the hole. (you probably need to change the gear oil anyway, right?)
_________________
| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
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Ian Epperson
Samba Member
Joined: January 12, 2005
Posts: 2262
Location: Alameda, CA
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| Posted: Sat Jun 23, 2007 1:44 pm Post subject: |
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The best on-road LSD available is the Quaiffe. However, it can't transfer more than 80% of the torque. That means that if one wheel has more than 80% of the traction, the other wheel will simply spin freely. Basically, if one wheel is completely in the air, the Quaiffe LSD will not fix it by itself (the trick there is to push the brakes a little to grip up the wheels). Most serious offroaders avoid the Quaiffe for that reason. However, on road, it's awsome because under extreme acceleration it perfectly balances the torque.
Another thing that might have been done is they didn't put an LSD in there at all and just shimmed up the spider gears. That would make the diff sticky and behave as you describe. |
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banuet
Samba Member
Joined: March 28, 2007
Posts: 8
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| Posted: Sun Jun 24, 2007 9:45 am Post subject: |
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thank you guys for your help.
I’ve drained the oil and washed the differential yesterday. Added some new oil (80) and a very stinking 4X4 additive...
It is now getting a better response on the one-wheel air test (doing the brakes trick).
talk you latter... I need a road test! |
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Bruce
Samba Member
Joined: May 16, 2003
Posts: 17288
Location: Left coast, Canada
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| Posted: Tue Jun 26, 2007 2:50 am Post subject: |
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| banuet wrote: |
I’ve drained the oil and washed the differential yesterday. Added some new oil (80) and a very stinking 4X4 additive...
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How did you wash the diff? Did you remove it?
What is the 4x4 additive?
_________________
| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
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banuet
Samba Member
Joined: March 28, 2007
Posts: 8
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| Posted: Tue Jun 26, 2007 9:25 am Post subject: |
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I’ve drained the oil and then I filled the dif. with a mix of kerosene oil and regular oil... (mexican recipe?) on the ramp I made it run a few turns and then drained the dirty mix.
I bought the additive in a Chrysler/Jeep/Dodge store... it is a small white bottle for 4X4s.
Don’t know much about mechanics but you were the second person that recommended me to change the oil... another friend told me that I will have to learn to live with no LSD... I think it works!
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Bruce
Samba Member
Joined: May 16, 2003
Posts: 17288
Location: Left coast, Canada
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| Posted: Tue Jun 26, 2007 12:08 pm Post subject: |
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Nice looking Safari.
Have a look for the transmission code stamped into the case like this:
Let us know what the code is.
_________________
| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
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