Terrano II 2.7tdic 2000 rear diff LSD

[Tate]

Hello I'm new here and I decided to subscribe as a bought my second Terrano II. This new one is a project.

I have a problem with the rear diff LSD. The LSD doesn't work. Only one wheel spins. In my first Terrano it worked like it should.

It doesn't make any additional sounds or nothing.

Any ideas what is wrong and how much it will cost?

Here is my Terrano:

 

[Madmark]

Change the oil bud to proper lsd oil as alot of garages don't realise it has one and chuck normal oil in. You may need to change it several times to flush it out properly. I had to with mine

 

[jims-terrano]

Yep my first thoughts about anything diff related.

That said I would also wait to hear from Solarman as he may shed some light on this for you.

 

[AlexD333]

Yep my first thoughts about anything diff related.

That said I would also wait to hear from Solarman as he may shed some light on this for you.

Plus one on this :thumb2

dont know if an internal can fail causing this issue? perhaps just slipping due to oil grade? Riiiiiiiick!!! :lol

 

[Banshee]

Change the oil, and if there's no difference then get it swapped, come off pretty easy :thumb2

 

[solarman216]

how did you discover only one wheel spins? was it on the ground or jacked up? Rick

 

[Tate]

Thank for your comments! I live in Finland and we live in a top of a hill. There comes a deep slope before our house and it is easy to test by stopping in the middle of the slope and try to carry on driving to the top.

Only one rear wheel spins.. the other one doesn't even try.. So the LSD is 100% dead. You can easily sense this but it is also visible if you check the marks in the dirt road.

I was just thinking that is it even possible that the wrong oil makes that happen?

Did someone of you have same kind of problem that the LSD was 100% dead and when you changed the oil to proper type then LSD started working like it should?

 

[solarman216]

Thank for your comments! I live in Finland and we live in a top of a hill. There comes a deep slope before our house and it is easy to test by stopping in the middle of the slope and try to carry on driving to the top.

Only one rear wheel spins.. the other one doesn't even try.. So the LSD is 100% dead. You can easily sense this but it is also visible if you check the marks in the dirt road.

I was just thinking that is it even possible that the wrong oil makes that happen?

Did someone of you have same kind of problem that the LSD was 100% dead and when you changed the oil to proper type then LSD started working like it should?

Mmmmm not a fair test, remember it is a LIMITED slip not a diff lock, best way to get an idea is jack both rear wheels off the ground, put it in gear, now can you turn one wheel? if not your diff is working but to what degree, well a 3 ft bar on the wheel and you should just be able to turn it, but do not use a wheel nut it will shear, use a breaker bar on one nut and a deep socket on another just under the bar so as you load the bar it rests on the socket, Rick

 

[solarman216]

when the oil is bad/old it makes the back end kick out on wet roundabouts, (not enough slip) my off road motor purposely has crap oil in it to increase the drive in slippy conditions but that is what it is in all the time, not good for a road going motor, if however your diff does prove to be duff do not replace it get a Lokka conversion, this will allow the outer wheel to go faster than the inner but when you need it both wheels will drive as if locked, Rick

 

[Madmark]

Hi rick when you say old crap oil what do you mean old crap lsd oil?

 

[solarman216]

yep old oil drained from LSD that was jumping on dry turns, soo good in the off road motor, Rick

 

[Madmark]

Did the bar test and can turn it easily enough. in 2wd in tight bends all is fine but in 4wd on tight bend rear inner wheels skips but I have the gay later type rear axel by Renault

 

[solarman216]

Did the bar test and can turn it easily enough. in 2wd in tight bends all is fine but in 4wd on tight bend rear inner wheels skips but I have the gay later type rear axel by Renault

yep that is about right, as said it is limited not locked and other factors come into play like loading, twist, camber of the road etc, but your diff is fine, Rick

 

[AlexD333]

Yeah unfortunately don't count on having a locked differential

I've had one wheel spin at the rear before in deep mud, can see the spray off one wheel only

 

[Tate]

I know how it should work because my previous Terrano II LSD worked perfectly and it was 100% original.

Let's say that changing oil won't help. Whats next? Has somebody replaced the friction discs? How much do they cost and where to buy them? Is Nissan dealer even an option (usually very expensive)?

 

[Madmark]

Cheaper bud to just chuck another axel in it that works must be plenty about

 

[solarman216]

I was always under the impression that the axle ratios varied, but now not so sure, just checked back on my front diff re fitting the Lokka and pics clearly show 35 teeth crown wheel, 8 teeth pinion so 4.375-1 Tate has been on to nissa and verified his auto is the same, so yes Tate I have a diff, over the W/E I will check a petrol diff for ratio, rick

 

[solarman216]

So deed is done, Petrol Ratio 4.625/1 (37 CW, 8 pin) Manual diesel 4.375/1 (35 CW, 8 pin) so I now have two spare rear LS diffs, Rick

 

[Banshee]

Thus also proving that the ratio on the front diffs is also the same ratio on the backs across all of the years as per my LOKKA fit :thumb2

See pics and ratios below;
http://www.nissan4x4ownersclub.com/forum/showpost.php?p=294132&postcount=57

 

[Sweety]

So deed is done, Petrol Ratio 4.625/1 (37 CW, 8 pin) Manual diesel 4.375/1 (35 CW, 8 pin) so I now have two spare rear LS diffs, Rick

Rick can you help me here please as I get mixed up with gear ratios is the petrol one higher or lower than the diesel