Shed some light

Need technical Q/A then you're in the right place

Moderator: martauto

yung-gun
E30 Zone Regular
E30 Zone Regular
Posts: 942
Joined: Sat Feb 26, 2011 11:00 pm
Location: Prestatyn, North Wales

Post Tue Dec 04, 2012 9:00 am

Hey guys, whilst driving my e30 last night i heard a large bang from the back end. Assuming it was a suspension fault i had a look and couldn't see any abnormalities with the springs/shocks everything feels fine on the suspension. When driving to work this morning it got worse, much worse.
Now it happens when i am pulling away and turning at the same time and has become a violent banging until i straighten up.

Possibly diff? i'm not sure, anyone out there have any ideas they would like to share?

Cheers
Image
scjimbo
E30 Zone Camper
E30 Zone Camper
Posts: 1249
Joined: Thu Feb 09, 2012 11:00 pm
Location: Gloucester

Post Tue Dec 04, 2012 9:06 am

Diff or CV joint is my guess. Probably diff. I had a cavalier do this to me some time ago. Only difference is it didn't have a welder :wink:
yung-gun
E30 Zone Regular
E30 Zone Regular
Posts: 942
Joined: Sat Feb 26, 2011 11:00 pm
Location: Prestatyn, North Wales

Post Tue Dec 04, 2012 9:08 am

Mine doesn't have a welder.... yet

Still been toying with the idea of one but never got round to welding one up.
Cheers mate
Image
mcbonio
E30 Zone Squatter
E30 Zone Squatter
Posts: 1868
Joined: Sun Feb 12, 2012 11:00 pm

Post Tue Dec 04, 2012 9:57 am

You had a look at your rear top suspension mounts?
yung-gun
E30 Zone Regular
E30 Zone Regular
Posts: 942
Joined: Sat Feb 26, 2011 11:00 pm
Location: Prestatyn, North Wales

Post Tue Dec 04, 2012 10:05 am

No matey. i'm gonna get it on the ramp in work later and have a goosie. I doubt it would be top mount considering how loud and aggressive the noise is
Image
yung-gun
E30 Zone Regular
E30 Zone Regular
Posts: 942
Joined: Sat Feb 26, 2011 11:00 pm
Location: Prestatyn, North Wales

Post Tue Dec 04, 2012 1:32 pm

Ok guys. got it on the ramp in work and it most certainly is the diff!
Image
HairyScreech
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 6265
Joined: Sun Jan 21, 2007 11:00 pm

Post Tue Dec 04, 2012 11:51 pm

You will most likely have knocked a tooth off one of the gears or cracked the spool, get it changed before it locks up with no warning.
Might sound fun, really isn't fun.
2.8 development thread http://www.e30zone.net/modules.php?name ... c&t=170822

m3.3.1 m20 thread - now running, chip needed - any volunteers?
http://www.e30zone.net/modules.php?name ... =viewtopic&
mcbonio
E30 Zone Squatter
E30 Zone Squatter
Posts: 1868
Joined: Sun Feb 12, 2012 11:00 pm

Post Wed Dec 05, 2012 1:14 am

At least you can get the diff off easy enough and work on it at your leisure off the car. Might be a good time to fit an LSD. :twisted:
yung-gun
E30 Zone Regular
E30 Zone Regular
Posts: 942
Joined: Sat Feb 26, 2011 11:00 pm
Location: Prestatyn, North Wales

Post Wed Dec 05, 2012 8:30 am

I'm putting a welder in it. thats my job for today!

I am very interested to open it up and see what i've done haha
Image
User avatar
Lurch320i
E30 Zone Regular
E30 Zone Regular
Posts: 517
Joined: Fri Jan 15, 2010 11:00 pm
Location: Wallasey, Merseyside

Post Wed Dec 05, 2012 9:01 am

yung-gun wrote:I'm putting a welder in it. thats my job for today!

I am very interested to open it up and see what i've done haha
make sure to get some photos to show us :-D my mate had a diff lock up on him whilst we were on the m6.luckily we were stuck in a traffic jam and not doing any speed