Boergy

iTrader: (2)

Hy!

in last time, i had many done on my SC

First idea was, to install 3000k bulbs in the fogs, but looks not good, and i installed the original bulbs back.





original bulb


Next step was to change the LSD from the Supra in the SC Diff housing.

open Supra diff and measure







for the first measuring i used chalk, but not the best

Boergy

iTrader: (2)

i bought a paste for this, but the result was but ok... i had done this so see it.



the bearing cups removed




here is the lsd



pinion


ring gear remove, not easy with the glued screws.


with a screwdriver and a hammer, i removed the ring gear


all parts seperated to go sleep

Boergy

iTrader: (2)

Next step was to fit out the SC diff. This was easy to do But the oil was the original oil! many deposits on the magnetic screw, bad! The oil was more as dead.

look from the side


open diff


measuring with the paste... the original SC diff



LSD Supra TT vs SC400 OEM


Pinion SC


all parts cleaned to assemble


hot ring gear


and installed all screws glued und tightened with 63Nm


back in the SC housing


measure test, looks neraly the same as from the orginal diff



i think its ok.

All parts mounted and ready to fill up with oil. I used Liqui Moly 75W140 GL5

Boergy

iTrader: (2)

Today was the day

i filled in the oil, built the diff with a friend in my SC and go on road

wow..the SC is much more stable, but the LSD is hard to the tires every corner, little bit more pull down the pedal and the tires loose rubber

the rear of the car is much better, not nervous, i like this

first small test on road after more kilometers


perfect

With the installed springs and shocks looks the SC more original




But one point is not really ok for me. If i drive 60 miles (~100km/h) and i pull hard down the gas pedal, i feel a *klong* as was a little bit air between the parts from the drivetrain. Is this normal with the LSD? if i pull slowly down the gas pedal, is very very little or nothing. Or have my pinion to the ring gear too much clearance? Or is this the converter and the transmission with the LSD? it not 100% perfect for me, its too hard, i think. Or was the winter-brake too long?

Have somewhere the same with the supra LSD? or not?

*edit* i was under the SC and tested the Diff, its a clearance by the cardan...i think, this is not good

thanks

Tom

maynanator

iTrader: (1)

do you mean when you floor its as if the gas pedal pops on something? if so then thats the kickdown sensor it tell the transmission to go down a gear to help with power and acceleration.

Boergy

iTrader: (2)

HY!

No...you can feel it from the drivetrain, with the oem lsd was this not. BUt i think, the LSD is not perfect adjusted in the housing, maybe i change the LSD back in the Supra housing and change the flange.

stockhatch

iTrader: (12)

How much backlash was there between the ring and pinion? Did you use a dial indicator to check it?

stockhatch

iTrader: (12)

When you spin the pinion to make a pattern in the marker compound, I find you can make a better pattern if you "load" the carrier. I usually wrap a rag around an axle flange and hold it as tight as I can. If it is hard to turn the pinion, you will get more force between the gears and a nicer pattern that is easier to read.

DoomLight

iTrader: (3)

gimme cluster! lol

yeah good question. you didnt use a dial indicator to make sure you dont have a howling diff? i dont like messing with stuff that is so critical.

DoomLight

iTrader: (3)

this is great. so if i use supra struts. i can lower the car without getting crappy springs that make the car ride too soft?

Boergy

iTrader: (2)

@stockhatch... no, i don´t use a dial indicator to check this. sorry. But i think, its too much backlash, it feels like a dual mass flywheel with broken springs, not good.

@doomlight... the diff makes no howling, on the street its normal to drive, so bad sounds or somethings, only this *klong*
I used the supra struts, but i lowered the front spring disc 18m lower on the strut (new groove for the ring) The rear strut is ok, but with the new Supra TT springs maybe a little bit too high. But its drive very good.

i will check tomorrow which solutions i can do, maybe bring to a shop to adjust correct, but i think, the needs new spacers for this, not cheap. A friend pays 400 euros! only for install a kaaz diff in his IS200 housing and adjusting, and all was ok, no parts needed.

Or i rebuilt the supra diff and change only the flanges and test the longer ratio.

I'll let you know it.

greets

Tom

stockhatch

iTrader: (12)

Tom, good luck getting the diff set up. It is not that bad to do if you have the tools and patience. Sometimes the hardest thing to do is get a good enough marking to read the pattern. Otherwise, it is just a lot of trial and error to get everything perfect. If you had some shims and a dial indicator, I am sure you could do it yourself with some time.

Boergy

iTrader: (2)

HY!

Thanks

But i will install tomorrow the LSD back in the Supra housing and changing the flange only. I can have in the next weeks a used SC300 diff (4.08) maybe i do a change in this housing to have shorter gears as original. But then, i give this to a shop i have not the tools for this, its better in professional hands.

Today i removed the diff from the SC, tested the cardan shaft, all ok, but the diff makes the noise.



without oil much more, i taken a video of the *klong*

http://www.youtube.com/watch?v=wGcJf...layer_embedded

tomorrow more news

DoomLight

iTrader: (3)

i was afraid something like that would happen. i hope nothing bad happened.

Boergy

iTrader: (2)

HY!

Today, i will install complete the LSD in the Supra housing, after this, i do a new vid