Puma Owners - Does yours do this?

Quote:

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Originally Posted by BilboBoggles

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

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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...ma-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

Quote:

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Originally Posted by BilboBoggles

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

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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

Quote:

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Originally Posted by Casper

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...ma-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

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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.

Quote:

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Originally Posted by PAT303

Get a job driving trucks and do that,the last thing you'll see is the gate.

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It's not the RPM that's causes spun bearings.

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Pat

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so why the comment?

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Originally Posted by dullbird

so why the comment?

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

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?

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

Quote:

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Originally Posted by 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

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

no but mine does this..

[ame="http://www.youtube.com/watch?v=cZrhuSE_ivA"]YouTube - A Real Man's 4WD Track at the Maitland 4wd[/ame]