Blown diff?

L18M · May 05, 2011, 09:53:58 PM

Just wondering how do you know if you have a blown diff?

I have a knocking noise coming from the rear of the car, sound like coming from the passenger side. Sounds kinda like a flat tyre thumping away BUT there is only noise when i am not accelerating. If i acc then the noise goes away.

Any ideas?

I checked body parts for loose fittings but everything is tight in place.

Cheers

L18M · May 05, 2011, 10:50:48 PM

scrap that.. just facetubed some vids and sounds like my diff has had it >.<
one prob after another. It was a LSD too...

Lacey · May 05, 2011, 11:16:04 PM

Was it assembled or installed by ...........?

L18M · May 05, 2011, 11:25:55 PM

Quote from: Lacey;760423Was it assembled or installed by ...........?

nope. he shouldn\'t of touched it. unless something got disrupted when the gearbox was out?

Lacey · May 06, 2011, 01:47:55 AM

Harsh then :/ wishing you the best of luck replacing!

yiug412 · May 06, 2011, 01:52:17 AM

ouch.... whats going on with the FCs? mine worked for 2 days and stopped working due to sensor failure. Liam just got his back and now another prob. also a few for sale on DW as well. This month must be a bad month for the FCs

SiH · May 06, 2011, 07:36:38 AM

Could be a CV joint

clive · May 06, 2011, 09:05:37 AM

From the noise you describe I would suggest getting under the car and checking the propshaft bolts are tight ASAP

If its tight twist the prop from side to side to see if theres play in the prop UJ\'s

Hope this helps

L18M · May 06, 2011, 04:49:02 PM

thanks for the replies guys and girls.
will jack it up again before i next take it out and check cv joints and propshaft and area.

you will hear the banging/ rattling noise about 20 seconds in.

though i took it for a short spin today and didnt hear it, just heard other rattling noises (spare nuts and bolts rattling around)

and 18 sec into this one

Brett · May 06, 2011, 04:59:54 PM

Was the prop unbolted from the diff at any stage? If so, was it replaced at the correct orientation?

L18M · May 06, 2011, 09:57:46 PM

it was fine when i picked it up, just the following day it started to make noise.
good excuse to take the diff out and replace the housing as the thread is gone neways..
plus change fuel filter

is it hard to take the diff out and the diff case?
i managed to do coilovers today which is very good for me but i failed at unscrewing the 2 screws holding the rear disk in place. even had an impact screw driver thing that i couldnt get to work lol

L18M · May 08, 2011, 02:38:34 PM

i had a poke around the rear yesterday and all is tight and tried to wobble the diff about but as its quite heavy it didnt move much so i dont think its the mounts.

Took it out for a cheeky lil spin and no banging / knocking noise.
maybe i had a chicken caught up in the rear some where?

any ideas anyone?

Lacey · May 08, 2011, 04:28:30 PM

No clue if it\'s suddenly gone away! Maybe being jacked up and having it messed about with seated it back into its rightful position? Maybe it was your suspension instead since you changed it? Or did I read wrong and you didn\'t finish the job on account of the un-moving screws?