Robsscooby

iTrader: (1)

Hi peeps
can some body tell me what I need to fit a oil pressure gauage
from scratch
cheers rob

JonMc

iTrader: (51)

Most of what you need should come with the gauge but you'll need to get one of these if you want to continue using the OE pressure switch

http://www.ebay.co.uk/itm/IMPREZA-WR...item2333522065

alcazar

iTrader: (2)

As above, you may also want some sort of pod?

Robsscooby

iTrader: (1)

Sweet thanks guys

just me

iTrader: (3)

I have one of these, is it normal for the switches to only go in partially? The switch that came with my gauges only goes in about 3 or 4 threads deep.

cheers

JonMc

iTrader: (51)

There's a couple of different ones with different threads - I can't remember which one you need but if it's only going in a bit it's probably tightening up as the threads are crossing

Kwik

iTrader: (10)

I also have one . However, my oil temp has never registered anything. I think there isn't enough room for it to get past the pressure sensor (side), but the temp sensor will not go in the side as its too long.

Fudgey

iTrader: (1)

Threaded part is usually 1/4 npt - national pipe taper. So the thread gets wider from the tip to base if that makes sense.

So basically as you tighten it it wedges itself into the hole. So dont over tighten lol

The Pink Ninja

iTrader: (23)

Its not meant for a temp sender, That goes above No.3 cylinder, Its just an adapter for relocating an aftermarket pressure sensor that will not fit under the intercooler and also to utilise the OEM oil light/pressure sensor

Fudgey

iTrader: (1)

I usually take oil temp from the sump. Used to run revotec sump plug adaptors, but most wont want to get rid of the magnetic sump plug i expect.

On my next oil change tho i think ill get a fumoto valve to make oil changes far cleaner/easier

JonMc

iTrader: (51)

Temperature sensor bung

BlueBugEye

iTrader: (12)

I took the cars oil pressure sensor out and replaced it with the gauge sensor, if the oil light comes on there's no oil pressure not just low pressure so your engine is probably already dead!
Temp sensor is on cylinder 3 as above.

alcazar

iTrader: (2)

Not a reliable reading on scoobs. The only place to fit a temp sender is above cylinder no. 3, which is known to run hot. Anywhere else is a waste of money.

Fudgey

iTrader: (1)

But surely the oil in the sump will be at a more constant temp?

Admittidly when i had it in the sump it was not on an impreza, but i wouldnt have thought engine design would have made that much of a difference.

Im not saying im right/your wrong or anything, just the way i understand things lol

The Pink Ninja

iTrader: (23)

It could possibly be more consistent but thats debatable as the reading is taken from the bottom of the engine not the hotter top part...what would you rather have...Consistency or the hottest oil temp reading to be on the cautious side...Bearing(no pun intended ) in mind how many end up suffering from rod knock on Cyl No.3

alcazar

iTrader: (2)

Posted it before I could.

You don't want a consistent reading, you want the highest.

Robsscooby

iTrader: (1)

So what do I need them to get a good reading

BlueBugEye

iTrader: (12)

Get the install kit.

http://www.scoobyworld.co.uk/catalog...oducts_id=1591



The hose/adapter allows you to fit both the gauge pressure sensor and the cars OE sensor to the fitting under the alternator, the adapter boss replaces a blanking plug over cylinder 3 (under Intercooler back left of engine looking from the front) and allows fitment of the temp sensor.

Robsscooby

iTrader: (1)

So I can then have a oil temp and oil pressure gauge

JonMc

iTrader: (51)

I'd completely agree with that - I've fitted a few sets of gauges and always use that style of kit with a bit of PTFE tape on the threads for peace of mind

Yes

alcazar

iTrader: (2)

IF your new sender fits, and IF you don't want the OE useless oil pressure SWITCH, you might be able to fit the new sender where the o/p switch fits and do away with the big bit of that kit.
It's how I've done my Defis. The o/p switch is sat on a shelf in the garage, probably doing as much good as it ever did on the car.....

just me

iTrader: (3)

just to confirm, the sender and oe switch do not go all the way in?

Kwik

iTrader: (10)

That's where I've gone from. It has 2 npt fitments on the adapter, top and side. Pressure sensor is in the side, temp at the top.

alcazar

iTrader: (2)

No..screw in by hand until it tightens, then about another half turn. use PTFE tape to help the seal, but don't go mad, the sender may need to earth through the block, and it can't if you overdo the tape.
Tip: always wind the tape round the threads so that, on screwing the sender in, the tape is pulled tighter, NOT unwound.

BlueBugEye

iTrader: (12)

No!

The hose/adaptor block is for oil pressure only - the OE sensor goes in the side I think and the Gauge sensor in the end. This comes from the original take off under the alternator. Temp is via the reducing boss over cylinder 3

Kwik

iTrader: (10)

Ok, just to make I have this correct lol. I should take the temp sensor out from the top of the adaptor and fit that where the old oil pressure sensor is under the alternator.
Then the oe pressure sensor goes into the side of the adaptor and the pressure sensor for the gauge then goes in the top.
Wouldn't I need to extend the wiring from the oe pressure sensor to reach?

alcazar

iTrader: (2)

No mate, wrong I'm afraid.

Remove old oil pressure switch. Screw that long adpator in it's place.
Now screw the new o/p sender into the end of that long adaptor, and either a bung, or the old o/p/s into the other tapped hole in it's end.

Remove the bung on top of cylinder No.3. Screw the smaller adaptor into it, then screw the oil TEMP sender into there.

Those are the two proper places from which to get readings.

You CAN do it other ways, but it's the lazy man's way and you don't get correct readings.

360ste

iTrader: (1)

You can get a boss that goes into the oil pressure switch hole that you fit both pressure sensors into from Scoobyclinic this does away with having the above unit laid along the inlet manifold.

Kwik

iTrader: (10)

I've found an old oil pressure switch and split it. Can I put the bottom half of this into the bung above cyl 3, then the oil temp switch into it?

r33gts2009

iTrader: (2)

Yes don't forget to tape the threads though.