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vibration from the front end
https://www.ausmini.com/forums/viewtopic.php?f=2&t=33444		 Page 1 of 1
Author:  chris k [ Sun Jul 01, 2007 6:24 pm ]
Post subject:  vibration from the front end
can anyone help me with what would be causing this problem.

When I shift through the gears 4th to 3rd and 3rd to 2nd I can fill a vibration coming from the front end as i release the clutch.

It only happens on the down shift only
Author:  slinkey inc [ Sun Jul 01, 2007 7:58 pm ]
Post subject: 
Throwout bearing wearing out?
Author:  pristic [ Sun Jul 01, 2007 8:00 pm ]
Post subject: 
How high are the revs when your down shifting?
I mean are you slowing the car down with the gearbox or brakes? Is it shudder through the pedal or vibration through the steering wheel?
Does it happen every time? Every gear?

Peter.
Author:  CPOCSM [ Sun Jul 01, 2007 8:00 pm ]
Post subject: 
Oil on the clutch plate I reckon or lightly contaminated with something...

Hooroo
Author:  chris k [ Sun Jul 01, 2007 8:17 pm ]
Post subject: 
im slowing down and it vibrates in the steering as im using the gearbox to help me slow down i dont have a rev gauge so its had to tell but its not high revs
Author:  chris k [ Sun Jul 01, 2007 8:19 pm ]
Post subject: 
i also fill it on the pedels mainly the pedels
Author:  chris k [ Sun Jul 01, 2007 8:21 pm ]
Post subject: 
it doesnt happen through the gears when im going up in the gears
Author:  willy [ Sun Jul 01, 2007 8:22 pm ]
Post subject: 
Definitely sounds like a loose bolt in your rear subframe mount.
Author:  drmini in aust [ Sun Jul 01, 2007 8:25 pm ]
Post subject: 
It's probably caused by the 6 drive straps (3 sets of 2) on the flywheel that connect the diaphragm and backplate to it, and keep hose parts concentric with the flywheel.
Under drive load they are all in tension = good. BUT, when you downshift and dump the clutch out they are in compression. Not good for a bit of spring steel about 1mm thick... eventually you can buckle and break them, causing clutch or flywheel damage.

Many racers fit 3 straps in each set instead of 2, making 9 in all- if you do this the 3 ears on the backplate need machining for the extra strap thickness. :wink:
Author:  mr moke [ Sun Jul 01, 2007 10:38 pm ]
Post subject:  hi
check your front wheel nut's aren't loose 8)
Author:  chris k [ Sun Jul 01, 2007 10:55 pm ]
Post subject: 
thanks everyone for your replys

i have some cut for me the next few nights until i sort this problem out
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