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Old 04-24-2004, 09:21 PM   #1
Unsung Boxer
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Member#: 37196
Join Date: May 2003
Location: WA state
Default oil pressure guage, where to tap?

Where are you supposed to tap the oil pressure for the Autometer Oil pressure guage?

Is it mechanical or electric? some explanation would help

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Old 04-24-2004, 11:30 PM   #2
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Join Date: Aug 1999
Chapter/Region: RMIC
Location: Denver, CO
'16 WRX Limited


well you should have figured that out when you bought it, they make both electrical and mechanical. so nobody is going to know what you have.

if it's electric, the guage will have 3 electrical terminals, one for power, one for ground, and one from the sensor signal. and the sensor will have one terminal on it for the signal, and the oil feed will go to the other side of the sensor.

personally I am tapping the turbo oil feed line.
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Old 04-25-2004, 12:02 AM   #3
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1997 Impreza WRX
Steel Blue Mica


I'm also tapping the oil feed line. There is another galley bolt on the right center on top of the block. You'd probably have to take the intake manifold off to get to it, maybe even the coolant pipe that crosses over.

If you need an electrical oil pressure sender, I have a Summit Racing one that I bought and never used since my gauge was mechanical. I'll sell it to you real cheap.

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Old 04-25-2004, 12:11 AM   #4
Unsung Boxer
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Member#: 37196
Join Date: May 2003
Location: WA state

Well, actually im putting in a few guages for someone. The only one im not familiar with is the Oil Pressure guage.

I didnt realize they had two types, electrical and mechanical.
At any rate, does the kit come with what I need to tap the oil line?

Im trying to determine time really. I know there will be some sort of sensor or feed that will go either on the oil line or the service plug. If it is as simple as the line, i wont charge him as much time. If i have to remove the intake manifold, then its gonna cost him more.

Advice would be great, as I dont want to rip him off, or lowball myself.

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Old 04-25-2004, 01:26 AM   #5
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02 WRX


oil taps arent fun dot dot dot
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Old 04-25-2004, 08:46 AM   #6
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05 Saab 9-5 Aero


the kit DOES NOT come with everything you will need. You will need to buy/make a adapter fitting the get the sender or hose tap to fit the engine. The easiest place to get oil pressure is from the front of the block right next to the alternator. The stock light sender is worthless so it's fine to toss it.
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Old 04-25-2004, 10:31 AM   #7
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There are three oil galley bolts. The front one under the alt, one in the middle by the water passage/gooseneck and one in the rear under the tb area. Pick which one you want to tap from.
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Old 04-26-2004, 02:35 PM   #8
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Location: Folsom, CA
1998 2.5 RS - Blue
Dreaming of Boost


I would highly recommend an electrical gauge. This way, you only need to run oil to the sender, which you can mount in your engine bay, then run a wire to your gauge. With a mechanical gauge, you will be running an oil line all the way to the gauge.

You will need some sort of pressure gauge kit which can be bought at most speedshops or auto parts stores, with either a nylon or copper tube to run from the block to the electrical sender... and the stock oil pressure sensor location under the alternator is a good choice. You might want to consider finding or making a braided steel line to use instead of copper or nylon tubing. If the line were to break.. you'd have a lot of oil squirting out of that little hole.

Anyways, tmat3 has a writeup on an install at his site.


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