Puma Owners - Does yours do this?

[BilboBoggles]

Curious if this is "Normal" or not. Apparently it's supposed to be "Normal" on the MY09 PUMA engined defenders.

1 - Make sure engine is COLD, or has not been running for at least 2 hours.
2 - Get in and start engine
3 - Immediately raise the revs to 1100 or 1000 or anything just above idle and hold for 1 minute

Does yours miss and run very roughly , and blow lots of white smoke?

To me this sounds like a sticking or leaking injector. But apparently as the man said - they all do it

[one_iota]

Not Normal!!!

I doubt that the "man" knows what he is talking about. "They all do that" is the first of the excuses/palm-offs used and has been around since the motor car was invented.:twisted:

[stuart]

yeah must admit mine runs a little ruff on start up...no smoke...i always give it a couple of mins to warm up...it's done just over 7K now and been that same since new (7 weeks)...feels normal to me...My TDV6 Disco before was the same...

So IMHO the smoke is a problem not the running a little ruff when cold...

but what do i know...:cool:

Stu


Not Normal!!!

I doubt that the "man" knows what he is talking about. "They all do that" is the first of the excuses/palm-offs used and has been around since the motor car was invented.:twisted:

[TimNZ]

My car is a little bit noisy when cold, but I've never got it to smoke, there is barely any smoke when I have my foot to the floor, (when its warm!). Hell, I've even started my 110 in the garage with the door shut when the engine was cold, there wasn't even a hint of smoke.

The injectors are electronically controlled, not opened by pressure, so if they were "sticking" I'd guess they were stuffed. From the white smoke I'd say there is not enough fuel pressure, and since it only happens when its cold you could possibly have air leaking into the HP part of the system?? Something the dealer will have to figure out, I'd certainly insist that you don't think it is normal.

I take what the dealers say with a grain of salt these days, I had a mechanic explain that the clutch noise I am hearing is from the dual mass flywheel and is completly normal, he then spent 5 min's explaining how a dual mass flywheel works. I waited till he finished before I said "thats nice, but the TDCi doesn't have a dual mass flywheel."

[Scallops]

Just one question - why the hell would you do this anyway? :confused:

[BilboBoggles]

Because you can feel the issue as you drive off. This is a simple way to reproduce it.

[Scallops]

Because you can feel the issue as you drive off. This is a simple way to reproduce it.

Ok - makes sense. :) I hope they can sort this thing out - I think it's weird that some Pumas do , some don't. :(

[PAT303]

Just one question - why the hell would you do this anyway? :confused:

I thought the same thing,next thing you know you'll be on here complaining about your puma spinning a bearing and join the ''Why does land rover use overstressed little engines'' club.Do you understand that every time you do that your taking 10k worth of miles off it's life?. Pat

[Scallops]

I thought the same thing,next thing you know you'll be on here complaining about your puma spinning a bearing and join the ''Why does land rover use overstressed little engines'' club.Do you understand that every time you do that your taking 10k worth of miles off it's life?. Pat

I guess that was my point too, Pat. I was going to say originally, "just let it idle for a while", but thought I'd get shot again... :D

[BilboBoggles]

1000 or 1100 RPM is hardly likely to spin a bearing. It idles at 900rpm

[Casper]

1000 or 1100 RPM is hardly likely to spin a bearing. It idles at 900rpm

X2 :eek:

It sounds to me as if one or more cylinders is running cold like a failed glow plug, but not knowing what sort of pre heat system it has I couldnt say for sure.

Low pressure would make it run lean or intermittent, over pressure would more than likely cause black smoke, white smoke is from unburned fuel.

Either that ir if it is a little blue then it could be valve stem seals or leaking guides.

It wouldnt be the first time that Ford has put dodgy guides in an engine :p

Edit:
Frome this thread:
http://www.aulro.com/afvb/90-110-130-defender-county/84322-puma-issues.html

ENGINE
The 2.4 is the best electronically controlled engine there has been in a Defender (not hard only had the td5 prior)
Engine knock: this should all be sorted by now. a few early engines developed a heavy knocking sound when started, which was attributed to a lubricating problem.
The tdci engine has oil cooling jets (also known as piston control jets) inside the engine block.
When the engine is running, these jets fire pressurised engine oil at the underside of the pistons and cylinder bores.
The oil flow from the jets is controlled by springs which on some engines didn't allow oil through until the oil had warmed up -which was a bit late, hence the knocking sound due to accelerated engine wear.
Land Rover didn't mess with this issue.
Affected engines were replaced and all subsequent units fitted with improved jet springs.

Could that possibly have something to do with it

[PAT303]

1000 or 1100 RPM is hardly likely to spin a bearing. It idles at 900rpm

Get a job driving trucks and do that,the last thing you'll see is the gate.It's not the RPM that's causes spun bearings. Pat

[BilboBoggles]

X2 :eek:

It sounds to me as if one or more cylinders is running cold like a failed glow plug, but not knowing what sort of pre heat system it has I couldnt say for sure.

Low pressure would make it run lean or intermittent, over pressure would more than likely cause black smoke, white smoke is from unburned fuel.

Either that ir if it is a little blue then it could be valve stem seals or leaking guides.

It wouldnt be the first time that Ford has put dodgy guides in an engine :p

Edit:
Frome this thread:
http://www.aulro.com/afvb/90-110-130-defender-county/84322-puma-issues.html

ENGINE
The 2.4 is the best electronically controlled engine there has been in a Defender (not hard only had the td5 prior)
Engine knock: this should all be sorted by now. a few early engines developed a heavy knocking sound when started, which was attributed to a lubricating problem.
The tdci engine has oil cooling jets (also known as piston control jets) inside the engine block.
When the engine is running, these jets fire pressurised engine oil at the underside of the pistons and cylinder bores.
The oil flow from the jets is controlled by springs which on some engines didn't allow oil through until the oil had warmed up -which was a bit late, hence the knocking sound due to accelerated engine wear.
Land Rover didn't mess with this issue.
Affected engines were replaced and all subsequent units fitted with improved jet springs.

Could that possibly have something to do with it

It's actually white unburnt diesel smoke. This is not my normal startup procedure - but I had been noticing hessitations on take off from cold, and general rough idle. Just slightly raising the idle spead seems to reproduce the issue really well. It's hard to see the white smoke when your are moving but very clear when it clouds over the car when stationary.

[dullbird]

Get a job driving trucks and do that,the last thing you'll see is the gate.
It's not the RPM that's causes spun bearings. Pat

so why the comment?

[PAT303]

so why the comment?

Because it is serious enough that in the trucking industry it is a sackable offence. Pat

[dullbird]

but for what? should of explained better in the last post sorry.

he is talking about rpm which others have gone Oh why would you do that.....you stated that it spins out bearings or something...and then above you said its not about the RPM so what is it about?

[PAT303]

The engine is dry,all the oil is in the sump,dry bearings on dry journal equals galling and spun bearing.It takes more time than you think for the oil to travel through the engine. Pat

[Scallops]

The engine is dry,all the oil is in the sump,dry bearings on dry journal equals galling and spun bearing.It takes more time than you think for the oil to travel through the engine. Pat

Another good reason to start the vehicle and just let it idle for 3 or so minutes.

[4bd1discovery]

no but mine does this..

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