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lodgeman
17-08-2005, 15:11
looks like i am picking up a gearbox on friday- are there any differences that i have to look for between the n/a and the turbo. just to make sure i am not being ripped off! any advice would be most appreciated :?

JB
17-08-2005, 22:07
You need a turbo gearbox and really with LSD. To check if its LSD turn the output splines on one side (long strong fingers or something similar). If the opposite side turns in the same direction it is a LSD :) . If the other side turns the opposite way it is a standard diff. :cry:
Ther's an earlier post on this somewhere if you trawl back
The gearbox attaches to the Camry engine with six main bolts. On Pauls box they are all the same size but on mine the two on the diff side (back) are slightly smaller. I think mine is an earlier box. If you check the speedo sender, if present, the later ones had electric senders. You will need a maniacal :shock: one but they can be swapped, bonus if its got a mech one.
I am not sure how to tell the diff between turbo and NA boxes but I am sure someone else around here can help you
Good luck mate :wink:

MegatronUK
17-08-2005, 22:40
Unfortunately that will only tell you part of the story.... if you have a rev1 plate-type lsd diff or an aftermarket plate lsd :(

The rev2 and rev3 had a hydraulic lsd, similar to the ones fitted to the GT4's. In that if you turn one wheel, the other will turn the opposite direction. It is only when you start to load the drive wheels up that the diff begins to lock.

So these diffs may well look as if they are non-lsd via the spin-the-wheel-by-hand test.

Supopsedly the centres, where the splines on the shafts enter, are different to non-lsd boxes, but I don't have firm details on what they actually look like.

If it helps, Paul brought a non-lsd box across when he heard my lsd was acting up... we haven't fitted it, but looking through the centre of the diff, you can clearly see all the way through it; it has quite a large bore all the way through, my rev1 lsd box was almost blanked half-way through, with a small pin hole in the centre.

lodgeman
17-08-2005, 22:59
cheers guys- i was told it was an rev 2 import if that makes any difference . are all turbo boxes lsd or just the later ones. i did go through the tech info section but couldnt find much on the differences. i dont want to be sold a n/a one and it not fitting. #-o stupid question - we all talk about the tubby gearbox but never about the celica one is that for a reason?

MegatronUK
17-08-2005, 23:07
The GT4 box is very similar, but the gearchange mechanism is on the wrong way round and it has a take-off for driving the prop for the rear wheels - not worth the hassle to convert to to MR2 use, AFAIA.

The lsd was optional on all the revisions I believe, but was a very common option on the rev3, the rev2 less so, and quite rare on the rev1.

If you know which donor the box is from, then you can work out if it is one via the chassis code... though if it is already removed, like mine was, then you're basically going on trust :?

Gary Symons
17-08-2005, 23:31
If it helps heres a pic of my gearbox.

http://www.mr2mk1turbo.co.uk/photos/3-9.jpg

Note the small hole through the centre, I believe this to be either an early standard LSD box or an aftermarket. A non LSD box has a large hole through the centre. And a Rev 2+ LSD box has a bar across the hole.

I stand to be corrected, but I beleve the above is right :)

MegatronUK
17-08-2005, 23:33
Yep Gary, thats what my rev1 lsd unit looks like. The non-lsd has a much, much bigger hole through the centre.

Gary Symons
17-08-2005, 23:44
Yep Gary, thats what my rev1 lsd unit looks like. The non-lsd has a much, much bigger hole through the centre.

Yeah, pretty sure we both had a standard rev1 LSD, been looking for photos of the others, didnt find any but did find this:

http://www.mr2oc.com/showthread.php?t=110983&highlight=e153+lsd

Quite interesting, looks like more interchangable toyota parts.

MegatronUK
17-08-2005, 23:54
Yep, the guy on IMOC is offering one of those TRD 1.5/2-way plate lsd's for 350 quid. It will fit both AW11 SC and rev1 turbos - same diff internals apparently.

podge
18-08-2005, 00:25
an na box hasnt got the speedo drive on the back of the gearbox like a tubby box the na is a straight screw into the top of the box

lodgeman
18-08-2005, 08:55
thanks again guys- i think i will go down today and see if i can get a look while they are removing it :lol:

djdna2000
18-08-2005, 10:20
My rev 3 LSD box has a bar through the centre if you look down the hole. A GT4 box is actually made with the same casing, but where the right-hand driveshaft exits there is instead a transfer case.

JB
18-08-2005, 22:37
Yep mines got a small hole too :oops:
Judging by your info John I've probably got a rev1 box thanks.
What oil is recommended for them?
Where are you at with your box John? Is it a total failure or did you solve the problem?

MegatronUK
18-08-2005, 22:49
I'm following the age-old tactic of ignoring the problem until it goes away :?

I've had numerous people say that its the plates locked up and a good ragging should free it... how much value you should place in that advice, I do not know :( Once the car is completed and taxed, I'll give it a good runout and see if it clears it, if not then it will be gearbox out and take to the local trasmission specialist.

As for oil, I eventually found that it should be fully synthetic 75w90. It's not cheap stuff though! Around 8 quid a litre ISTR, and it takes just over 4 litres to fill the box from empty :shock:

podge
18-08-2005, 22:54
yep used fully synthetic in mine cost a fortune :shock:

lodgeman
18-08-2005, 23:31
well- i picked up the gearbox today . car was a m redg could tell what rev it was as the intake side was missing. it looks as though the box has the large hole through the middle so it is the non lsd model. the car was in a huuuuuge accident and the engine /geabox looks in good condition and looks as though its been rebuilt at some stage. am getting the mounts and clutch slave with the gearbox. is there anything else i should get?
is the lsd important - the only reason i ask is that i had a mini 1400 with lsd and it was a bugger to drive everyday-brilliant at high speeed but tended to rip your arms off! :lol:

Gary Symons
19-08-2005, 08:47
Yep, large hole without bar across is a non lsd. I would say that an M plate would be a rev 3 tubby, dont think that makes any difference as it is a non lsd box (rev 3 lsd driveshafts different?)

If you are doing the monster brake upgrade, grab the rear calipers+carriers. If not you can give them to me :D

Also dont forget the mini is front wheel drive and the 2 is rear so you shouldnt have the same problem with ripped off arms. :lol:

lodgeman
19-08-2005, 17:19
went down today to pick up the gearbox mounts as i didnt have tools last time-the rear calipers were missing already so i couldnt get them. i did however seem to pick up a turbo fuel pump.i dont know how but it seemed to fall into my toolbox accidently :lol: - and i didnt realise until i got home along with some other bits and bobs [-X perhaps i should go back when i get some time and pay for them because otherwise that would be wrong wouldnt it :lol: i will take some pics and then you can all tell me the bits i will need that i havent got.

JB
29-08-2005, 20:05
Sorry to Pirate your post Lodge but I need help too :?
In messing with my gearbox I've noticed the remnants of fluid are very like Dexron (pink) so I looked back at my scribblings to find my box was sold to me as a 92 rev2 which seems to make sense as on the Autodata CD (thanks Paul) the 3SGE boxes have Dexron 2 recommended so I thought maybe the turbo boxes used it too. Is this right, it also seems to fit with what Megatron said about the rev 2/3 LSDs being hydraulic.
Be glad of comments :)