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enfield_dinosaur



Member Since: 14 Jun 2015
Location: Tertius orbis
Posts: 120
2007 Defender 110 Puma 2.4 SW Java Black
Clutch... whistles?
Dear fellow Defender enthusiasts,

my car is a neverending source of the most astounding quirks I have ever experienced in a vehicle. I still love it to bits though Laughing

So, now my latest strange occurence is a short whistle when I (or just before I) reengage gears, raising my foot of the clutch pedal. Like a short puff from a little steam organ. It occurs randomly, but more and more frequently the longer I drive.

What on earth could that be?

Does the clutch operate via a hydraulic mechanism? I found no fluids of any kind when I checked the Defender's underbelly.

Car's got 82k miles on the clock and drives fine otherwise...

Any ideas? Or anyone had the same issue before and got to the bottom of it?


All the best

e_d
Post #663761 12th Nov 2017 7:19pm
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Sockpuppet



Member Since: 17 Sep 2011
Location: Leicester
Posts: 479
United Kingdom 
Turbo dump valve?

I reckon the clutch master cylinder as that is the only thing it could be (trapped air on return stroke?)
Post #663768 12th Nov 2017 7:43pm
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enfield_dinosaur



Member Since: 14 Jun 2015
Location: Tertius orbis
Posts: 120
2007 Defender 110 Puma 2.4 SW Java Black
Hmm, both could be it. However, I would presume the turbo dump valve only doing it's job when accelerating, i.e. when reengaging gears and pushing the accelerator down again. I'll have to keep an eye on the rpm tomorrow on my commute, as I recall, the turbo does not engage on low revs, so if it persists and I am too low on revs while changing gears, it must be something different...

Clutch master cylinder sounds like "everything has to come apart", right? Where would I check before spilling all the mechanical entrails on my driveway?

It's a very strange sound indeed.
Post #663771 12th Nov 2017 7:48pm
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DAZ110



Member Since: 06 Dec 2007
Location: East Sussex
Posts: 2003
United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Barolo Black
My clutch made a screeching sound for a while and it turned out that the clutch plate springs were coming loose and causing metal to metal contact, it was this that was making the screeching sound. Landy had done around 45,000 miles when this happened.
Post #663775 12th Nov 2017 8:01pm
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720
United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
if it only does it while the engine is running then it could be the release bearing, which is built into the slave cylinder on a puma.

Pump the clutch a few times with the engine off, that'll rule out noise from the springs in the pedal box.
Post #663816 12th Nov 2017 9:25pm
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