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Old 10-11-2007, 09:34 AM   #1
kenz
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Question reversing noise issues

Hey guys my ute is making a a strange noise when I put it in reverse and start to move it makes a continuous clunk/grinding sort of noise. If I keep my foot on the clutch a bit more it doesnt really do it but if Im nearly released all the clutch it sounds pretty bad. I had it lowered a few months back and now have to reverse into my driveway and ive scraped a few times and its only just started doing it a week or so ago. Car specs are in my sig for those playing at home
thanks
Luke

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Originally Posted by CAT600
No matter how good the F6 is (and it is damn good), its missing two cylinders.
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Old 14-11-2007, 10:14 PM   #2
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anyone :
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Quote:
Originally Posted by CAT600
No matter how good the F6 is (and it is damn good), its missing two cylinders.
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Old 15-11-2007, 04:59 PM   #3
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That sounds like the same problem I have in my car.

Its been doing for about a year, and the LSD still works fine. I've just gotten into the habit of taking it out of reverse when I'm rolling backwards.

I'm pretty sure its Diff or gearbox but would like to know for sure if anyone knows.

Bumping this up for answers.
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Old 12-02-2008, 03:57 PM   #4
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Have narrowed this down to being the reverse gear grinding whilst on the go pedal. Goes in and out of gear fine just grinds whilst driving. Suggestions, ideas?

Cheers
Luke
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Quote:
Originally Posted by CAT600
No matter how good the F6 is (and it is damn good), its missing two cylinders.
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Old 12-02-2008, 06:55 PM   #5
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i have this same sort of problem in my ute, i found it was when the motor gets put under load and shakes alot like it does when u take off in reverse and hardly touch the throttle, the mufflers hit under the cab. my ute has been lowered alot and i also have a custom exhaust on it. Coz i no this is the problem i just live with it
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Old 12-02-2008, 06:59 PM   #6
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I live with it aswell but time is nearing when I need to get a RWC to sell it. But mine grinds when its not even under load and I can kinda feel it through the gear stick
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Quote:
Originally Posted by CAT600
No matter how good the F6 is (and it is damn good), its missing two cylinders.
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Old 12-02-2008, 07:02 PM   #7
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yeh doesnt really sound like the same stuff my ute is doing, sorry mate, probably could be reverse gear in the box
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Old 12-02-2008, 07:54 PM   #8
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If you have LSD, it could be that. You just need to get a small tube of "Stink" (LSD Lube Addative).

I had the same prob, and was fixed within two corners of driving away. Just open up your diff nut and squeeze it in - best, easiest, cheapest thing to try first...
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Old 12-02-2008, 08:49 PM   #9
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nah mate I dont have lsd
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Quote:
Originally Posted by CAT600
No matter how good the F6 is (and it is damn good), its missing two cylinders.
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Old 12-02-2008, 09:34 PM   #10
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normally that sort of grinding noise is synchros, but i'm not sure if au's have reverse synchros or not, some cars don't, but I'd say it's either that or a worn reverse gear...if it is that, the only way you can fix it is with new bearings/box rebuild
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Old 23-02-2008, 01:39 PM   #11
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Turned out to be the exhaust rubbing/ hitting against the gearbox mounting bracket. I cut the edge off it and it seems to be back to normal There was scrape marks on my cat which i think has pushed the exhaust up higher than it was
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Quote:
Originally Posted by CAT600
No matter how good the F6 is (and it is damn good), its missing two cylinders.
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