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adminkatana

Member Since: 11 Apr 2016
Location: Sussex
Posts: 31

2015 Defender 90 Puma 2.2 CSW Keswick Green

2.2 'shudder' and vibration of gearstick when switching off

Hi all,

About every 1/10 trips when switching the off (handbrake on, neutral, clutch out, rested idle for 30secs or so) the Defender will shudder and shake as the engine switches off. The gearstick also vibrates a fair bit.

Happens sporadically in different locations/ after different lengths of drives, starts fine next time it's used. Is this normal?

I recently did the LR Experience and mentioned it to our instructor (who also owned a 90) and said he'd never heard of it.

Appreciate anyones thoughts. Thanks!

7th Nov 2016 11:36am

dantastic

Member Since: 04 May 2010
Location: London
Posts: 367

Happens to mine too. Was meaning to ask about it. Don't know if it's right or not but it's very weird. When it happens it seems like the engine isn't turning off immediately either but keeps going for like a fraction of a second or so.

7th Nov 2016 11:59am

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20348

It's just centrifugal inertia, it's not a 1L engine after all. $W33T $0U7H3RN $UG4R
🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇮🇪🇺🇸⛽️🛢️⚙️🧰💪

7th Nov 2016 12:55pm

MikeJ

Member Since: 04 May 2014
Location: Dorchester, Dorset
Posts: 41

2013 Defender 130 Puma 2.2 HCPU Fuji White

I've noticed this a small number of times and it only happens when it's been idling for a while.

7th Nov 2016 12:59pm

Vogler

Member Since: 02 Nov 2014
Location: Brussels
Posts: 309

Our Td5 does it too. I speculated it was maybe the balancing weight of the dual mass flywheel moving to and fro until it doesn't counteract with the springs anymore.

Greetings,

Joris

7th Nov 2016 1:40pm

adminkatana

Member Since: 11 Apr 2016
Location: Sussex
Posts: 31

Thanks for input, glad to hear it's nothing to worry about!

7th Nov 2016 2:03pm

Jerry

Member Since: 13 Nov 2015
Location: Cardiff
Posts: 196

2015 Defender 110 Puma 2.2 Adventure Phoenix Orange

I think that a few of us have also got this shuddering (I think I described it as an abrupt clunk, but shudder is more accurate)

see thread:
http://www.defender2.net/forum/topic45073.html

I was wondering if it happened whilst stopping the engine mid-cycle of a regeneration. but others have suggested alternative thoughts.

7th Nov 2016 10:36pm

Beery

Member Since: 16 Nov 2014
Location: NSW
Posts: 36

2015 Defender 130 Puma 2.2 HCPU Corris Grey

Its a normal thing for a diesel, because of the high compression ratio. However, modern diesels have a throttle valve at the entrance to the intake manifold and has a couple of purposes. Firstly its used to create a pressure drop to enable high rates of EGR, secondly, it closes when the engine is shut off to cut the air supply ao there is nothing for the pistons to compress and prevent the typical diesel rock.

For some reason, sometimes this throttle doesnt shut when the engine is stopped.

Nothing to do with DPF regen, as mine is non DPF and does the same thing sometimes.

8th Nov 2016 12:49am

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