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Cracka

Member Since: 08 Dec 2012
Location: New South Wales, Australia
Posts: 129

Rattle in transmission tunnel

Well I went out yesterday scoping out a new area to collect firewood. It was pretty steep and I was using 1st 2nd 3rd low range for a part of it. I found when under a bit of load about 1250 rpm I get a rattle from the transmission tunnel area that disappears at 1500 rpm. I'm not being OCD with this one its pretty loud.

Has anybody had this or have any ideas.

Last edited by Cracka on 20th Jun 2013 10:56pm. Edited 1 time in total

20th Jun 2013 9:45am

Norm4n

Member Since: 31 Aug 2012
Location: Surrey
Posts: 329

Mine always sounds like that in low range

20th Jun 2013 1:44pm

Cracka

Member Since: 08 Dec 2012
Location: New South Wales, Australia
Posts: 129

Do you know what causes it ?

20th Jun 2013 10:37pm

Caterham

Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6266

2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey

have you checked the exhaust manifold heat shield or support bracket isn't loose?

21st Jun 2013 7:42am

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2605

2010 Defender 90 Puma 2.4 SW Alpine White

sounds like the clutch, they all do this to a lesser-bigger degree --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

21st Jun 2013 9:31am

Cracka

Member Since: 08 Dec 2012
Location: New South Wales, Australia
Posts: 129

Thanks for the replies guys.

I checked all heat shield and drive shaft flange bolts front and rear today, they were fine.

I did find a loose bolt at the front of the seatbox, drivers side against the transmission tunnel which bolts to a bracket on the chassis. This I'm hoping was the culprit.

I also found when the Hi Lo selector is in low range the retaining clip at the bottom of the pivot arm actually contacts a bolt head on top of the transfer case. Not sure if this could make the sound I could hear, though anything's possible.

Well I took the car to a hill (on bitumen near home) tried it in low range and got no rattly noises

. I can't see that if would be any different off road but will see next week when off road again.

Naks, if it was the clutch would it do it in high range as well ?

21st Jun 2013 9:47am

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2605

Cracka wrote:
Naks, if it was the clutch would it do it in high range as well ?

Yep, but to a lesser extent. I idle in first when leaving home, it does it only when trying to go over the speed bumps in the driveway, so when it pushes out lots of torque.

Even when I got a new clutch installed, it did this when we went off road. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

21st Jun 2013 9:50am

Cracka

Member Since: 08 Dec 2012
Location: New South Wales, Australia
Posts: 129

Thanks buddy, you were quick.....

I actually have a bit of a steep driveway from the street kerb up into the garage and I normally just ease off the clutch (high range) and let the car idle up the drive in either first or reverse using the anti stall and haven't heard it so hopefully

it won't be the clutch.

21st Jun 2013 10:09am

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