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dt4
Monza


Joined: 16 Mar 2016
Posts: 189
Location: Leeds


PostPosted: Fri Jan 18, 2019 2:22 pm    Post subject: Oil pressure readings with new sender Reply with quote

I have just fitted a new sender as the indications were the old one was duff
The photos show the engine running at temp
The second is engine running warm
The third is engine running cold
The forth is the oil pressure readings at cold with key at position 1
Are the readings in the right sort of range?
 



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Stoo.c
Monza


Joined: 07 Apr 2014
Posts: 205
Location: Hertfordshire


PostPosted: Fri Jan 18, 2019 2:49 pm    Post subject: Reply with quote

Given I'm assuming those are at idle, they all appear to be within specified range. I'm not sure mine ever gets quite as low as your 'at temp' pic but there are so many factors to consider like oil viscosity, actual engine temp, oil level etc.

Where does it move to 'at temp' when you're rising up the revs?
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dt4
Monza


Joined: 16 Mar 2016
Posts: 189
Location: Leeds


PostPosted: Fri Jan 18, 2019 3:21 pm    Post subject: Reply with quote

Stoo.c wrote:
Given I'm assuming those are at idle, they all appear to be within specified range. I'm not sure mine ever gets quite as low as your 'at temp' pic but there are so many factors to consider like oil viscosity, actual engine temp, oil level etc.

Where does it move to 'at temp' when you're rising up the revs?


I'll check when I go out for a proper drive, I was only pootling around locally to get it up to temp and yes, the readings are all at idle
thanks for the reply
 
  
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screwy
Newbie


Joined: 15 Jan 2014
Posts: 40
Location: SW Herts


PostPosted: Fri Jan 18, 2019 6:12 pm    Post subject: Reply with quote

Yes they look "normal" to me.

Mine sits just below 5 when cold. And I don't think I've seen mine quite as low as your "at temp" picture. But all looks good. They seem to vary a little across the model years, and maybe by oil type and exact engine temp.

When up to normal operating temp, mine sits just below 2 at idle and just above 4 under load.
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7161
Location: Brighton


PostPosted: Fri Jan 18, 2019 10:19 pm    Post subject: Reply with quote

Your gauge is not that accurate but its close enough .. ign on , engine not running and it should read zero , yours is a bit below that .

Cold running and its a little high .. it shouldnt really go above 5.

warm and at idle and i tend to go with anything above 1 bar is ok .

Different oils make a small difference .

The only way to get an accurate measurement is to fit a seperate oil gauge , which will be calibrated and read that off .

I see no point in this instance , you have a good enough gauge reading.

The oil warning light is the main thing to watch out for .. ive never seen it on a 996 but if that illuminates or ***** then you DO have a low oil pressure fault .

Edit ..

Flick- ers seems to be not allowed .
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dt4
Monza


Joined: 16 Mar 2016
Posts: 189
Location: Leeds


PostPosted: Sat Jan 19, 2019 8:58 am    Post subject: Reply with quote

Thanks
 
  
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thecarfixer
Monza


Joined: 03 Nov 2016
Posts: 166



PostPosted: Sat Jan 19, 2019 9:04 pm    Post subject: Reply with quote

Behaviour echos my car with a 78.8k mile old engine, and 10w50 Millers oil, except the hot idle on mine sits at about 2-2.5 bar on a cold day where the air temperature is lower.

On a 35 degree day last year, it dropped down to 1 bar after a fairly hard B road blast..
 
  
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