Hey guy need help i think my oil pump on its way out and need some oil pressure readings if an ef/el tickford factory guage
1 at idle cold

2 at idle warm

3 at 60 km/h

4 at 80 km/h

5 at 100 km/h

all in 5th gear

any help would be very appreciated also if any one knows the socket size for the oil pressure sender would help

Remove sender unit, and fit a capillary gauge, to get an accurate reading........you don't see the V8 Touring car guys using factory gauges, eh?.....coz they ain't accurate.
Can't remember the size....14mm.....9/16".....16mm...5/8"....17mm....an open ender spanner.

Size is 27mm. Will have to be deep aswell ,
I made up a spanner for it ,

Yeh i know that factory guages arnt accurate (i work at a dealership) thats why i asked for the sender size so i can put a propper one on just wanted to get someones elses readings as i dont get paid till thursday

You mean the thread size of the factory sender unit ?
It's 1/4 npt .
I have a digital oil pressure gauge, Brand new in box with sender . Pm if interested

Going for a drive in my ef xr6 now,will take a note of oil pressure readings and post back here soon(car has factory oil pressure sender and it works).Make sure you are using correct viscosity oil,as I have had the oil pressure guage give me funny readings when i used thicker oil a few years back,switched to 10w40 Castrol magnatec and oil pressure readings back to normal.

Im useing a 15/W40 i might have to try a thiner oil althou my engine has 360k on it

Sorry,didnt go for a drive yesterday,the guage readings you have listed above are normal as long as guage needle does not go into orange zone and oil pressure warning light does not illuminate(page 33 of owners manual states "it is normal for the guage to indicate low pressure(approaching orange sector)when engine is idling at normal operating temperature."
The oil guage (in the dash) reads variable resistance form the oil sender(on engine).The oil pressure guage in the instrument cluster can be checked by connecting a variable resistance tester to the oil pressure sender electrical connector(Ford dealers or auto electrician will have one of these testers).Resistance values(taken from factory ef workshop manual) for oil pressure guage are as follows:0(low)=0ohms,1=20ohms,2=31ohms,3=41ohms,4=50.8ohms,6=66ohms,7(high)=80ohms.
If guage resistance values are correct,problem exists with the sender unit.If not,problem is in the guage or wiring harness.
Note that oil pressure warning lamp should illuminate at position 1(according to workshop manual).
I will post what my oil pressure guage readings are as soon as I go for a drive.Car is 95 ef2 xr6 manual, 156000km and is currently running nulon 10w40 full synthetic engine oil and still has factory fitted oil sender guage/instrument cluster.
Sorry for writing a book,but hope this helps you.

Ok...Finally went for a drive..@3.8 at fast idle cold,3.1 at idle warm,3.8-4 at 60 to 100kmh.Certainly different to your readings above.Oil pressure guage never dropped below about 3.1 and never went above 4.Car has factory XR6 motor,standard apart from 2.5 inch Redback cat back exhaust.

thanks zabatron all of my readings are way below that mine at the lights its only just sitting on 1 it sits on about 2.5 between 60 -110 i reakon il have to go get a propper guage and cheak it out more

anyone know how much pressure it should be running