Oil Pressure issues

[A80Avant]

some did check with a proper gauge. so we are trying to understand if the readings are normal for these engines or the rumor of 1.8bar at idle is a misunderstanding

[terrybullwon]

Can't believe this thread is still going on! The aux gauges are really just for quick reference / show, they are not accurate at all!
Check it with a proper gauge if you are worried. If you had really low oil pressure your top end would make a racket you would know about it!

Confirmed.

Race technologies sensor with Dash 2 read different to stock so i got a mechanical gauge and tested it

[A80Avant]

what was the reading on the dash 2 and the original one?

[terrybullwon]

OEM was 6-7psi lower

[Jonnybravo]

OEM was 6-7psi lower

Thats a lot !

Can't fault the accuracy of the RT stuff by the sounds of it then.

[terrybullwon]

Thats a lot !

Can't fault the accuracy of the RT stuff by the sounds of it then.

No you cant James, I am not saying every ones sensors are this far out but they are 20 ish years old.....

[Jonnybravo]

Painfully I can see myself buying all RT sensors for mine, I only have two ( Fuel pressure and Oil temp ) but after your findings I think I'll maybe invest in a oil pressure one.

[terrybullwon]

Painfully I can see myself buying all RT sensors for mine, I only have two ( Fuel pressure and Oil temp ) but after your findings I think I'll maybe invest in a oil pressure one.

£100

Painful!

[A80Avant]

good info there.
thanks

[Thuppu]

I checked my aan oil pressure with a mechanical gauge and it showed about 0,5 bar more on high rpm's than the stock gauge. Idle was almost identical, maybe 0,1-0,2 bar more...

OEM was 6-7psi lower

We seems to have almost the same results. I used a industrial gauge to check the pressure:

[terrybullwon]

We seems to have almost the same results. I used a industrial gauge to check the pressure

Yes i used the same to check the sensor was correct

[rs200]

I didn't try to messured with mechanical gauge , I change 3 sensors for oil pressure , and I also use sensor from s6 aan which have on idle 1.8bar.
and in every case it is 1 bar at idle.

now I just buy new sputter bearings for connecting rod , and now I go to change them. they are 3 years old , but I must see how they look and change it with new one.
will post at evning when I find out how they look..
wish me a luck

[A80Avant]

i have just ordered the sender and pressure switch to replace in the near future. i cannot have yet another gauge staying there. if i can change that and still have the same reading, ill get a mechanical reading sorted and judge by the difference in the readings

[max_s2]

Tomorrow I'll mesure oil pressure with mechanical gauge for a test and will post up results.
However, mine car readings on VDO are +/- OK (2bar@hot idle, 4bar@2000rpm and 4.5 @ ~4000rpm).

[rs200]

now I came from "garage".. well I change conecting rod bearings , and it is still 1 bar..

now I think a little bit .. I saw that after half of minute after cold start oil pressure start to drop on 4.5bar , after 30 second they are on 4 bar, and after 3minute they are on hot idle and have 1bar.

so oil pressure start to drop very quickly . oil and water are still "cold" . which part of engine are hot in this first 30 second?
the cilinder head.. are they?
which part of cilinder head restrict the oil? could that be a hydro lifters? YES..
I have the old hydro lifters , they have 20 years..
have in basement 40 almost new hidro lifters, but one of them make a bad (tiking) sound.
tomorrow I will change all 20 and find out what is going on.. maybe it will help..
what do you think?