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| OzECruisers General Discussions E/N/D vehicles General Discussion ONLY. NO TECH THREADS |
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22-05-2005, 07:40 PM
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rocknrolla
Join Date: Dec 2004
Location: Adelaide, SA
Posts: 1,589
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...and its not mine. My mum also has a DC.
I've got a problem and im fresh out of ideas. Im not going to describe what ive done/checked, just the symptoms so I dont confuse the issue. when cold, no issues. once driven for approx. 10km, if you drive 1-2 kmph it has a thumping/knocking noise that can be felt through the whole car and is audible. above 10kmph it is silent. seems related to rotation of wheels. present with engine on or off. car has the standard 3.27 LSD and king standard height springs in the back (deleted SLS). car has only done 110k. suggestions welcome! |
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22-05-2005, 08:06 PM
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apprentice grease monkey
Join Date: Jan 2005
Location: willunga
Posts: 169
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is it a real deep thump or is it more of a kocking noise like exhaust hitting the tail shaft, the axels arent bent are they?
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22-05-2005, 08:08 PM
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#3 | ||
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rocknrolla
Join Date: Dec 2004
Location: Adelaide, SA
Posts: 1,589
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deep thump. car hasnt had any accidents since we've had it (12 months).
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22-05-2005, 08:17 PM
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FF.Com.Au Hardcore
Join Date: Dec 2004
Location: Adelaide
Posts: 3,103
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Uni joints?
__________________
Current Rides: 2012 KK Jeep Cherokee Limited CRD - Still going strong 2019 MG ZS Essence 1988 RD Mitsubishi Colt GL - 59kW of Fury 2022 Kia Stinger GT |
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22-05-2005, 08:35 PM
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#5 | ||
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rocknrolla
Join Date: Dec 2004
Location: Adelaide, SA
Posts: 1,589
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checked them they're fine.
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22-05-2005, 09:32 PM
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Two > One
Join Date: Dec 2004
Location: Adelaide
Posts: 7,063
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Drop a burnout and see if that fixes it
__________________
1978 LTD - 408ci - 11.5@120.6mph - 2004 S4 - 4.2 - M6 - quattro - |
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22-05-2005, 10:41 PM
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#7 | ||
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Oops, I slipped....
Join Date: Dec 2004
Location: Adelaide, SA
Posts: 1,861
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Perhaps you could get someone to stand outside and listen for anything?
__________________
1995 EF Fairmont 5.0 Heritage Green - BTR with TCI 2500 stall - Ported E7's - Pacemaker Tri-Y's - 3" Mandrel-bent Lukey Exhaust 1984 XE S-Pack 250 Sno White - LPG - Single Rail - 2.5" Exhaust "Just because you don't understand something, does not make it wrong" |
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23-05-2005, 01:45 AM
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Turbo Dinosaur FTMFW
Join Date: Dec 2004
Location: SA
Posts: 7,834
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Quote:
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23-05-2005, 10:28 AM
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Guest
Posts: n/a
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I had a vibrating shudder and nocking in my diff when taking off very slowely, it was the diff plates sticking. A change of fluid fixed the problem. Also my old XF falcon used to nock at low speed but cleared up when accelerating, this was stuffed diff centre bearings.
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23-05-2005, 10:53 AM
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#10 | ||
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TL40 Wagon?
Join Date: Dec 2004
Location: Sydney
Posts: 2,377
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Low speed, Speed related not engine speed.
Tyres maybe, gearbox mounts? Its hard to say. Have a good look underneath on a hoist with it ticking over in gear. |
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23-05-2005, 11:16 AM
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FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Sydney N.S.W
Posts: 505
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I reckon it's the diff. The LSD in my EA did that, got the oil changed and it was all sweet.
__________________
2003 Narooma Blue BA XR6 5spd Manual. Pacemaker 4490 Extractors 2.5" Exhaust High Flow Cat SS Inductions "Growler" CAI Underdrive Pulley Mal Wood H/D Clutch Custom Tune 18" XHP Sabre's 12" Kicker Sub 169.2 rwkw
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23-05-2005, 05:44 PM
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#12 | ||
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rocknrolla
Join Date: Dec 2004
Location: Adelaide, SA
Posts: 1,589
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OK, thanks for the ideas fellas keep them coming.
taken the diff back plate off and there was no filing etc in it and the diff oil level was correct. changed the oil anyway and put penrite 85/140 LS oil in. have taken the axles out and checked the wheel bearings but they are fine. If it is the LSD, what are the consequences of just leaving it? to be honest we dont give a shit if the lsd is ****ed, we just dont want to damage anything else (the car is being used for a round australia trip soon!) |
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23-05-2005, 06:15 PM
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#14 | ||
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Two > One
Join Date: Dec 2004
Location: Adelaide
Posts: 7,063
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seing its going on a big trip id be looking at getting it sorted. Having the rear jacked up and the wheels moving results in no noise right?
__________________
1978 LTD - 408ci - 11.5@120.6mph - 2004 S4 - 4.2 - M6 - quattro - |
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23-05-2005, 08:58 PM
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#15 | ||
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rocknrolla
Join Date: Dec 2004
Location: Adelaide, SA
Posts: 1,589
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yeh, it needs load it seems.
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24-05-2005, 10:44 AM
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#16 | ||
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The one and only
Join Date: Dec 2004
Location: Carrum Downs, Victoria
Posts: 9,053
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Does the noise alter at all?
listnen to it whilst coasting, turning, reversing, accelerating and braking. Put the rear of the car in the air (on stands) and run the car. Does it sound/feel to come from front ot back?
__________________
1992 DC LTDHO 360rwkw built by me Tuned by CVE Performance Going of the rails on a crazy train Other cars include Dynamic ED Sprint, Dynamic DL LTD, Sparkling Burgundy DL LTD, Yellow, Red & Blue XB sedan & Black XB Coupe
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24-05-2005, 08:37 PM
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#17 | ||
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rocknrolla
Join Date: Dec 2004
Location: Adelaide, SA
Posts: 1,589
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after discussing the problem with a differential specialist we've decided to try taking the center out and shimming the lsd cone clutches. that seems the most logical thing.
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24-05-2005, 10:41 PM
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#18 | ||
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FF.Com.Au Hardcore
Join Date: Dec 2004
Location: Adelaide
Posts: 3,103
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Hey Barry, I'd be happy to relieve you of that pesky LSD centre ;)
__________________
Current Rides: 2012 KK Jeep Cherokee Limited CRD - Still going strong 2019 MG ZS Essence 1988 RD Mitsubishi Colt GL - 59kW of Fury 2022 Kia Stinger GT |
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DC LTD 5.0 Problem!
Linear Mode
