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rossy

Member Since: 29 Nov 2010
Location: Co. Roscommon
Posts: 1296

2011 Defender 110 Puma 2.4 CSW Stornoway Grey

Another rattly Puma post

There's Puma rattles and Puma rattles so here's mine !

New Puma 2k miles

When I rev it when stationary its fine - makes the normal distinctive TDCI sound a la Mondeo, Focus etc.

If I rev it foot to the floor hard in each gear its also fine. Once its cruising its also OK
IfI accellerate very gently - fine. So whats the problem ?

In normal driving either on normal accelleration or under load (eg coming to a hill) there is a tappety rattle from the engine which sounds like the valve clearances need adjusting (which of course they don't and can't !)
You can vary the timbre of the rattle by varying the amount of throttle. Its more noticable when the engine is very warm and when doing lots of driving on twisty hilly roads. Strangely enough on our way back from London last week the rattle disappeared for about 10 minutes under conditions when it would normally be very noticable but then came back again.

I have used 2 stroke oil from new (50ml per 10l diesel) and quality fuel. Today I changed the oil and filter and that didn't make any difference. I get 27mpg and there's no shortage of power - its pretty lively.

I've done a search and there's lots of advice along the lines of pilot correction relearn, injector codes, water in fuel etc but none of the other rattly symptoms are quite the same as this one so maybe someone out there has had the same problem and fixed it ??

Or maybe its normal ? I don't know but as they say the only stupid question is the one you don't ask.

Thanks in advance

3rd Sep 2011 7:34pm

kingofthesparks

Member Since: 06 Jan 2011
Location: Very close to Watford gap services , northants
Posts: 987

My 60 plate 110 utility done this but it seemed intermittent usually worse on cold mornings, sound is very disturbing for a new motor, never found cause as i sold it to buy a 110 dc tomb raider and a d3 as well.

3rd Sep 2011 7:38pm

bob neville

Member Since: 30 Apr 2009
Location: Marbella
Posts: 3248

Get the same from mine when I have been offroad and using low ratio a lot.

Back on tarmac and high range I get a similar tappet type noise. After 40/50 miles it seems to sort itself out. I use decent (Esso ?) fuel and 2 stroke as well. Dealer looked at it earlier this year and could not find anything amiss. It used to be a lot worse when I used Shell Fuel Save so my best guess is that it may be fuel related.

I just live with it now

Bob

3rd Sep 2011 8:10pm

kingofthesparks

Member Since: 06 Jan 2011
Location: Very close to Watford gap services , northants
Posts: 987

Fun enough i was using shell, may have had something to do with it as it was intermittent and now and again i used bp

3rd Sep 2011 8:27pm

Denis

Member Since: 28 Dec 2010
Location: prairie
Posts: 58

2010 Defender 110 Puma 2.4 SW Stornoway Grey

Also have such sound on several Pumas (of my friends) - thats not a problem at all. All on new (low mileage) engines.

Cheers

Puma 110

3rd Sep 2011 8:33pm

rossy

Member Since: 29 Nov 2010
Location: Co. Roscommon
Posts: 1296

thanks for the replies everyone. I too have no problem living with it either as long as there's nothing wrong

3rd Sep 2011 9:01pm

Forest of Dean 90

Member Since: 29 Apr 2009
Location: Forest of Dean
Posts: 68

2007 Defender 90 Puma 2.4 HT Stornoway Grey

Mines the same 07 plate 45,000 miles

sounds awful, is it clutch, gearbox, transfer box or engine ?

4th Sep 2011 7:43am

spudfan

Member Since: 10 Sep 2007
Location: Co Donegal
Posts: 4646

I suppose you have checked the obvious and checked the bolts on the heatshield on the turbo.Sometimes they need to be tightened,especially the one nearest the front of the engine. Mine needed tightening and was causing a bit of a racket but maybe that is different. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali
2008 110 2.4 tdci csw-Zulu
2011 110 2.4 tdci csw-Masai

4th Sep 2011 9:31am

RED-DOT

Member Since: 29 Jun 2009
Location: stirling
Posts: 2363

Check the red engine lifting eye, they all come loose then fall onto engine. 2008 RS4 gone, 123d M Sport, and a Puma 90 XS..

4th Sep 2011 9:54am

rossy

Member Since: 29 Nov 2010
Location: Co. Roscommon
Posts: 1296

thanks chaps yes I checked those they seem to be a common problem

4th Sep 2011 10:27am

nicknick

Member Since: 28 Feb 2011
Location: halifax
Posts: 30

2010 Defender 90 Puma 2.4 CSW Tonga Green

Hi guys,

my puma with 3000mls on did exactly the rattle your all talking about, its definetley a combustion noise. Mine runs fine apart from the noise, when i had my remap done the noise could be made worse or totally gone by adjusting the injection timing using a laptop, im talking about tiny amounts 0.25 of a degree or so.
Now its totally gone and far more pleasant to drive. One of our transits did the same noise and we had the timing adjusted (no remap) and thats 100% better too. You see all modern engines are mass produced and all the same......, only there not ! this is proven because all engines have a variety of diffrent thickness head gaskets available (2 or 3). This is because of manufacturing tolerances so it stands to reason that one injection timing setting isnt going to suit every engine

bloody hell im boring sometimes , sorry

4th Sep 2011 8:07pm

wslr

Member Since: 18 Jul 2010
Location: Wellington, Somerset
Posts: 581

Taken from the User Manual:

Quote:
DIESEL FUEL QUALITY
Land Rover recommends that only premium
brand diesel fuels are used.
Note: Land Rover vehicle's are capable of
running with up to a 5% blend of bio-diesel in
accordance with European Standard EN590.

SULPHUR CONTENT
The Sulphur content of diesel used in Land
Rover vehicles should not exceed 0.3% (3000
parts per million).

There is no obvious TSB linked to this unfortunately, but does this mean that we should be using premium diesel like BP Ultimate.

4th Sep 2011 9:47pm

wslr

Member Since: 18 Jul 2010
Location: Wellington, Somerset
Posts: 581

And this may possibly help someone, but only relevant on early MY's:

Quote:
Reference SSM38792
Models Defender
Title 2.4 Puma Engine Knock Noise.
Category Engine
Last modified 21-Jul-2008 00:00:00
Symptom 497000 Engine Noise
Content
Issue:
Heavy audible knocking heard on start up.
Cause:
On start up oil pressures can cause the piston cooling jets, (PCJ), to latch into a zero flow condition. Due to hysteresis effect in design the jets do not unlatch until the engine is warm and the oil pressures lower again. During this time with no pressurized oil jet flow to the lower pistons / cylinder bores, overheat and scuff conditions / damage can occur.

Action:
Replace the engine assy but ensure only engines post serial # ELD00080707063602 are used.
This condition will not occur on vehicles post assured Vin# 9A767162.
Engines post the info above are fitted with modified PCJ internal springs and this issue is now closed.

4th Sep 2011 9:54pm

rossy

Member Since: 29 Nov 2010
Location: Co. Roscommon
Posts: 1296

nicknick wrote:
Hi guys,

my puma with 3000mls on did exactly the rattle your all talking about, its definetley a combustion noise. Mine runs fine apart from the noise, when i had my remap done the noise could be made worse or totally gone by adjusting the injection timing using a laptop, im talking about tiny amounts 0.25 of a degree or so.
Now its totally gone and far more pleasant to drive. One of our transits did the same noise and we had the timing adjusted (no remap) and thats 100% better too. You see all modern engines are mass produced and all the same......, only there not ! this is proven because all engines have a variety of diffrent thickness head gaskets available (2 or 3). This is because of manufacturing tolerances so it stands to reason that one injection timing setting isnt going to suit every engine

bloody hell im boring sometimes , sorry

Nick you are not boring ! That sounds like a plan for next time I'm at the dealers. Many thanks

5th Sep 2011 9:10pm

shrekman

Member Since: 11 Aug 2011
Location: worcestershire
Posts: 20

2009 Defender 110 Puma 2.4 XS CSW Stornoway Grey

nicknick wrote:
Hi guys,

my puma with 3000mls on did exactly the rattle your all talking about, its definetley a combustion noise. Mine runs fine apart from the noise, when i had my remap done the noise could be made worse or totally gone by adjusting the injection timing using a laptop, im talking about tiny amounts 0.25 of a degree or so.
Now its totally gone and far more pleasant to drive. One of our transits did the same noise and we had the timing adjusted (no remap) and thats 100% better too. You see all modern engines are mass produced and all the same......, only there not ! this is proven because all engines have a variety of diffrent thickness head gaskets available (2 or 3). This is because of manufacturing tolerances so it stands to reason that one injection timing setting isnt going to suit every engine

bloody hell im boring sometimes , sorry

Hi. Now that interesting I thought I was alone with this issue
And finally got the steelers to fit 4 new injectors to cure my rattle.
It didn't cure it.

Thank god I'm not alone. Any other info on the injector timing ????? spent 20 years fixing them ... the dealers just wont listen !!!!

11th Oct 2011 3:46am

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