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gazza1591

Active Member
Hi all

Well have a problem but unsure what it is causing it?

On a cold start the discovery 1 300tdi seems to give off quiet a lot if white smoke and even more under acceleration but as soon as the engine warms up say 5 mins of driving it all clears up and then even sitting there with foot to floor there is no signs of it?

I have recently done a 250 mile round trip in it and it never lost any water at all? As I know white smoke is usually a sign of head going or gone?

Any ideas where or what else I can check?
 
gazza1591 said:
Is it? Mine produces quiet a lot till it warms up but as said all is fine then?
Click to expand...

yes. Been driving and using diesels for 40+ years, either in vehicle, welders , or as power sources. never seen 1 that didn't. It is called dew point. Once warmed up white smoke stops, it is more steam than smoke A Google search will confirm
 
Well i have three diesels at the moment an non of them produce white smoke when there cold, unless the ambient temp is very cold around zero.
How does it start? white smoke can be caused by injection timing being out.
 
oldskool said:
Well i have three diesels at the moment an non of them produce white smoke when there cold, unless the ambient temp is very cold around zero.
How does it start? white smoke can be caused by injection timing being out.
Click to expand...

nope.Sometimes diesel engines emit a white smoke while starting. The white smoke is due to unburnt fuel caused by improper heating.

Diesel engines need high compression and heat for fuel combustion. It can be especially difficult to start a diesel engine during cold weather. Diesels with an engine temperature below about 80 F. will produce some white smoke during the first few seconds after startup. The content of white smoke is finely atomized raw fuel and water vapor. Most diesel cars and light trucks have glow plugs that help to heat the engine.

Read rest of link........... This is just 1 of many on the subject, and all say the same thing.



Diesel white smoke emissions during startup
 
I have read the link but States a few seconds? So to me it's not because if this and something else? If it said few minutes then I would say you are correct?
 
gazza1591 said:
Hi all

Well have a problem but unsure what it is causing it?

On a cold start the discovery 1 300tdi seems to give off quiet a lot if white smoke and even more under acceleration but as soon as the engine warms up say 5 mins of driving it all clears up and then even sitting there with foot to floor there is no signs of it?

I have recently done a 250 mile round trip in it and it never lost any water at all? As I know white smoke is usually a sign of head going or gone?

Any ideas where or what else I can check?
Click to expand...

Might be worn valve guide seals.
 
Thor1950 said:
nope.Sometimes diesel engines emit a white smoke while starting. The white smoke is due to unburnt fuel caused by improper heating.

Diesel engines need high compression and heat for fuel combustion. It can be especially difficult to start a diesel engine during cold weather. Diesels with an engine temperature below about 80 F. will produce some white smoke during the first few seconds after startup. The content of white smoke is finely atomized raw fuel and water vapor. Most diesel cars and light trucks have glow plugs that help to heat the engine.

Read rest of link........... This is just 1 of many on the subject, and all say the same thing.

Diesel white smoke emissions during startup
Click to expand...
Most modern diesels don't use there glow plugs for starting there used at full load for emission reasons.
 
oldskool said:
Most modern diesels don't use there glow plugs for starting there used at full load for emission reasons.
Click to expand...

well they are for starting and run until temps increase in the engine block, to reduce the white smoke problem.

The only word that is mine is nope. the rest is a quote from the source I linked to egspecially the red high light you are referring to
 
i bet it's blue and valve stem seals

when people say blue, they mean tinge not bright blue btw :p
 
Well I would say white, but may be blue will try get a video tomorrow if it is the seals would this cause it to stop when the engine gets warm? And any ideas on price to replace the seals?
 
Thor1950 said:
well they are for starting and run until temps increase in the engine block, to reduce the white smoke problem.

The only word that is mine is nope. the rest is a quote from the source I linked to egspecially the red high light you are referring to
Click to expand...

Copy and paste c@4k, i'm talking from experience and knowledge, you don't know what the $uc& your talking about.
 
gazza1591 said:
Well I would say white, but may be blue will try get a video tomorrow if it is the seals would this cause it to stop when the engine gets warm? And any ideas on price to replace the seals?
Click to expand...

Could also be the turbo :( if it is blueish smoke
 
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