Monday, September 01, 2008 - 08:33 pm, by: Tim Ross(Retox)
Ok... got the ass in the air (the car that is, not mine)... run it in gear on stands... god afwul deep noise similar to grinding coming from what appears to be the diff.
Diff is an open center.
Drop passenger side axle off diff (where we thought the noise was coming from - that side)... repeat process.. same noise happens
Drop driver side axle off diff... then repeat process... Diff is quiet as a church mouse!
Now, here's my thought process so far:
1) Thinking of removing both the axles to check the CV joints, however... looking at the boots on the CV's, and more improtantly the clamps holding these on. How do you remove the clamps to check the joints?... cant see any form of adjustment on them.
2) I can only see the one 32mm nut holding on the hub... once that nut is removed, what more is involved for removing the axles?
3) Is it possible that the diff may not have been making noise at the end because there was no resistance on the axle hubs due to them both being seperated?
Tuesday, September 02, 2008 - 07:01 pm, by: Brendan McGannon(1jzspec)
check your outer diff bearing,soarers,supras and aristos do it! id leave the cv joint for now as they will (usually) only make noise under load,as in weight of car on them.take the car to a mechanic and get them to listen to the noise,it may even be a wheel bearing!
Tuesday, September 02, 2008 - 07:08 pm, by: Tim Ross(Retox)
Yeah, had a chat to Driveline Services up here in QLD today, and he said to check the wheel bearings as well.
So will be doing that this Saturday.
Thanks for the advice on the CV's... after getting a quote from toyota for a replacement one ($900!!!!!!!), I'm gonna leave checking that till last I think.
Is there any trick ot opening up everything in the second picture to get to the bearings?... I.E. tensions or anything like that?... or is it just a case of open it up and put it all back together when done?
Wednesday, September 03, 2008 - 07:27 pm, by: Brendan McGannon(1jzspec)
no worries mate! the wheel bearings are a press in and out job,basically the hub has to come off,easy way to check for bearing play is jack it up,and grab the wheel at the top and bottom and see if you can rock it back and forth,if there is free play your bearings are shagged or very close to it
Saturday, September 06, 2008 - 06:40 pm, by: Tim Ross(Retox)
OK... todays update
Seem to be getting mixed opinions from all bloody angles... one of which stated that it could be the pinion bearing, and because there's no load on it with the axles disconnected from the diff, then thats why it stopped making noise?.. ••••• me... I dont know.
Anyways, seeing as I had the replacement diff already, I figured what the hell, and decided to go ahead and drop the old diff out anyways.
now the million dollar question... how the bloody hell do you get the bastard back in there? We've got the new diff on a jack, and there's both me and my brother under the car trying to manouvre the bloody diff so that the shaft can slip back into the tailshaft... what does it take?
we've put the axles back onto the hubs so that they arent slopping around everywhere being a pain in the ass while we lift it... but to no avail.
Sunday, September 07, 2008 - 06:53 am, by: Matt Petersen(Mattmannz)
Whats the problem you are having? I did my diff swap in the driveway on my own with no major dramas.
I did exactly what you describe, reconnected axles to diff then raised diff and slid driveshaft on/in then continued raising the diff until it was able to be bolted in.
The flange on the driveshaft has a rod protruding which has to slot into the flange on the diff before you will be able to get the two lined up correctly.
Sunday, September 07, 2008 - 10:45 am, by: Tim Ross(Retox)
Hey Matt..
Problem we are having is with that rod from the diff and getting it back into the tailshaft.
no matter what angle we try, the pin rod just doesnt seem the clear the end of the tailshaft to get in, and the rear of the diff cannot go back any further due to being against the crossmember
The only thing we havent done is removed the rubber bush from the end of the tailshaft... not sure if thats necessary or will make a difference though?
Sunday, September 07, 2008 - 01:06 pm, by: Matt Petersen(Mattmannz)
Hmm.
When I put my driveshaft back into the diff I did it when the diff was nearly on the ground and just held the shaft in place as I jacked the diff up and it slotted into place with no worries.
You are right, once the diff is up you can't get the driveshaft back in unless you undo the centre mount which requires removal of the heat shields etc.
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