Reggies MOT tomorrow

t-tony

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Initials LA.;)(first word, Lard ....)

Tony.
 

littlefeller

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here is an interesting idea, if your oil is cooler than normal - is this not impacting the hydraulic lifters, this could explain your nice smelly idle, like mine.
reasons for lifter not doing its job are- the engine oil level is low (yours isnt) oil is too viscous (dont know) or oil fails too reach temperature (this we do know, unless its a probe issue).
 

Grumps

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Oil level is spot on Jason, can't remember what oil I bought now buy it was the recommended, @t-tony is testing the probe to see if the is a fault.
 

t-tony

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And the probe worked fine on three diesel cars today . . . . . :whistle:

So, b******* if I know what happened Dave.

Tony.
 

Grumps

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And the probe worked fine on three diesel cars today . . . . . :whistle:

So, b*****ed if I know what happened Dave.

Tony.
So why is the oil not getting to temp? It's obviously a contribution to the high emissions. @Lee any ideas?
 

Brian4

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If the oil is 90 deg at the filter could this mean the filter or the housing is blocking up not allowing oil to flow freely. This could stop the valves opening fully so less oxygen and incomplete combustion and hence high CO readings?
 

Grumps

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The plot thickens .......:pompus:
I'm at a loss with it Ant. Tonys at a loss with it! It's obviously ran like it for years but I'll be b*******. Any suggestions to what it could be are very welcome.
 

Grumps

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If the oil is 90 deg at the filter could this mean the filter or the housing is blocking up not allowing oil to flow freely. This could stop the valves opening fully so less oxygen and incomplete combustion and hence high CO readings?
If I recall Brian it was 70 ish. Tony may remember as he was using the probe. The oil and filter were changed just 12 months ago and have done around 3000 miles. It has been up on emissions for 4 or 5 years tho so must be more under lying than that?
 

Redline

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And the probe worked fine on three diesel cars today . . . . . :whistle:

So, b*****ed if I know what happened Dave.

Tony.
TOTO? (turn off, turn on)
User error?
At the risk of this thread turning a little course - you did stuff it in the right hole?
I presume you've used it on other similar engines.

Is it a probe on a semi/flexible wand? The Dipstick on the LR is somewhat bent - it must go around a curve somewhere on the way down. If it's flexible is there chance it gets diverted away from the oil?
An endoscope type camera would be useful ;)
 

Brian4

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If I recall Brian it was 70 ish. Tony may remember as he was using the probe. The oil and filter were changed just 12 months ago and have done around 3000 miles. It has been up on emissions for 4 or 5 years tho so must be more under lying than that?
Not unless there is some restriction within the filter housing itself which could have been there for a while, Dave
 

Antm72

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Its a long flexible probe Tony measured it to the same length as the dipstick and inserted it in place of the dipstick.
If its worked fine on 3 cars today its working correctly and being used in the same manner....
 

Redline

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Its a long flexible probe Tony measured it to the same length as the dipstick and inserted it in place of the dipstick.
If its worked fine on 3 cars today its working correctly and being used in the same manner....
Just trying to eliminate possible causes however unlikely. Have seen many an engineer (and groups of engineers inadvertently leading each other) overlook the blindingly obvious because they're looking for what they expect to see. We all do it.
When you find out the real cause you look a right ar$e. =))
Am sure all the oil would settle down to a mean temperature at around the water temp or higher. 70 or 50 degrees sems way too low. It's becoming a mystery....
 

Antm72

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It is odd tony took the thermal temp from allsorts of places. I suppose that if the oil pump is super efficiant the oil level may be low in the sump when running ie off the dipstick so it was reading ambient temp rather than oil temp ?
There has to be a rational explination.
 

Lee

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Thanks for contacting Zed shed HQ :p
First thoughts.
*Oil quality?
*vicous fan stuck on (too much cooling)
*thermostat passing (cooling the engine)

All I can think of off the cuff.

Lee
 

Grumps

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Just trying to eliminate possible causes however unlikely. Have seen many an engineer (and groups of engineers inadvertently leading each other) overlook the blindingly obvious because they're looking for what they expect to see. We all do it.
When you find out the real cause you look a right ar$e. =))
Am sure all the oil would settle down to a mean temperature at around the water temp or higher. 70 or 50 degrees sems way too low. It's becoming a mystery....
It's weird for sure. I don't claim to have a clue what's causing these issues. The car runs superbly and fuel seems fine although I've never ran another to compare. While on the euro trip I fuelled at the same intervals and mileage as @Mint who has a 2.2, mine is a 2.8 and the refills were within a couple of litres everytime in his favour but that would be accountable by the engine size.
It does smell hot and fuelly sometimes although not always. The co2 always settles at the same level. 0.54%, the pass rate being below 0.2%. It's been like this for 4 or 5 years.
 

Redline

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Thanks for contacting Zed shed HQ :p
First thoughts.
*Oil quality?
*vicous fan stuck on (too much cooling)
*thermostat passing (cooling the engine)

All I can think of off the cuff.

Lee
That's a good point Lee.
Thermostat is new. Unlikely to be that.
Oil only a few thousand miles even though 12 months old. Shouldn't be a problem.
Dave changed the fan and vacuous coupling just a few weeks ago. But, I'd assumed that the water to the oil cooler is after the thermostat. Is that the case? If the water to the oil cooler is straight off the rad and the fan is constantly running, that could explain why the oil is cooler than expected. I expect to be wrong (again) - just floating ideas.
Could of course be a combination of several issues.
 

Lee

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Now I've read the thread I think you guys are right with the Co2 sensor. My dads 2.8 had the same issue a few years back, once replaced the readings where much better because the Ecu then knew what adjustments to make.
 
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