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Old 03-28-2006, 10:33 AM   #1
joltdudeuc
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Default Where to tap for oil pressure gauge?

I'm hearing about some bolt that's in the block/head that can be removed and in it's place you can put an oil pressure probe. Unfortunatly, I can't seem to find it, nor find pictures of it.

Any one have any idea?

-Gagan
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Old 03-28-2006, 11:02 AM   #2
Matt Monson
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You can either tee if off the idiot light one right behind the alternator/steering pump, or there is another allen head bolt under the manifold that you can use. It's got a brass colored head on it...
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Old 03-28-2006, 11:11 AM   #3
Tim Sanderson
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What size threads dose your sender have? if it's 1/8 npt then here are 2 choices.

You can tee into where yuor stock sensor goes or you can remove the rear main galley plug and replace it with part number 11024aa210 $6.74 and install it there.

Your stock oil pressure sender is just to the left of the alternator, on the block. If you go straight back from it you'll see an allen head main galley plug. Replace that plug with the above mentioned plug(which is the same one used for the stock oil sending unit), and install your aftermarket unit there.
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Old 03-28-2006, 11:12 AM   #4
Tim Sanderson
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beat me while I was typing Matt.
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Old 03-29-2006, 10:19 AM   #5
joltdudeuc
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Quote:
Originally Posted by Matt Monson
You can either tee if off the idiot light one right behind the alternator/steering pump, or there is another allen head bolt under the manifold that you can use. It's got a brass colored head on it...
Thanks guys!

I actually do have that replacement plug already, but couldn't figure out where to put the damn thing. Ok, So this plug is at the top of the block or below it? (meaning, should I swap it during an oil change or would there be no oil coming out?)

I'll try to get this finished up soon.

Thanks again,

-Gagan
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Old 03-29-2006, 05:19 PM   #6
Tim Sanderson
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top rear of the block. Look down from the pcv.
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Old 03-29-2006, 05:53 PM   #7
fastco
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Use this guide just disregard the intercooler stuff....

http://www.scoobymods.com/forums/sho...ressure+sender
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Old 03-29-2006, 08:11 PM   #8
Tim Sanderson
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First of all i'd like to strongly suggest that you don't use teflon tape. Use a liquid thread sealant. It usually has teflon in it.

If you find that your sending unit does'nt thread in far enough then stop by a hardware store and get yourself a 1/8" pipe thread tap and tap the new fitting adapter a little deeper.
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Old 04-11-2006, 07:25 PM   #9
Patrick Olsen
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Quote:
Originally Posted by Tim Sanderson
What size threads dose your sender have? if it's 1/8 npt then here are 2 choices.
I've been told that Subarus use BSPT, not NPT. You can thread a 1/8" BSPT into a 1/8" NPT (or vice versa), because the difference is pretty small, but they aren't the same (the threads per inch is different, as is the angle of the threads).

Pat Olsen
'97 Legacy 2.5GT sedan
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Old 04-11-2006, 09:46 PM   #10
imprezzakc
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JB weld works wonders . I just used the block plug with the threads and the auto meter sender and just JB welded it together . never a leak for more than a year .
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