Plug hole next to filter

12.9$500rex · 10-30-2009, 10:58 PM

Just got my motor back and there is a good 1+ inch hole next to the Oil filter. Not sure what threads into it wondering if anyone could help me real quick. It is the large unmistakeable hole on the ej257 directly next to the filter.

* Registered users of the site do not see these ads.

dr3w · 10-30-2009, 11:44 PM

That's were the Preston nipple for the oil cooler goes.

12.9$500rex · 11-01-2009, 11:59 AM

This hole under the Oil filter and next to the exhaust outlet

yarrgh · 11-01-2009, 02:14 PM

freeze plug for water.

dan az · 11-06-2009, 12:22 AM

water return hole for the factory water cooled oil heat exchanger

foolio · 11-06-2009, 10:57 AM

Correct, its like a little nipple that stick out for coolant return for the oil cooler.

mick_the_ginge · 11-07-2009, 11:31 AM

It feeds the oil cooler water.

(Picture from my oil dry sump setup which is why I have capped the oil pickup, DO NOT DO THIS)

It's part of #8 in this diagram.

If you are not planning on running the oil cooler then it can be plugged. Other end (on water pump) needs to be plugged as well.

10-30-2009, 10:58 PM	#1
12.9$500rex Scooby Specialist Member#: 78178 Join Date: Dec 2004 Chapter/Region: MWSOC Location: LaGrange/Chi IL Vehicle: 2004 WRX Silver	Plug hole next to filter Just got my motor back and there is a good 1+ inch hole next to the Oil filter. Not sure what threads into it wondering if anyone could help me real quick. It is the large unmistakeable hole on the ej257 directly next to the filter. * Registered users of the site do not see these ads.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

10-30-2009, 11:44 PM	#2
dr3w Scooby Specialist Member#: 222318 Join Date: Sep 2009 Chapter/Region: E. Canada Location: Montreal Vehicle: 1993 JDM GC8 STi Silver	That's were the Preston nipple for the oil cooler goes.

11-01-2009, 11:59 AM	#3
12.9$500rex Scooby Specialist Member#: 78178 Join Date: Dec 2004 Chapter/Region: MWSOC Location: LaGrange/Chi IL Vehicle: 2004 WRX Silver	This hole under the Oil filter and next to the exhaust outlet

11-01-2009, 02:14 PM	#4
yarrgh Scooby Specialist Member#: 80465 Join Date: Jan 2005 Chapter/Region: RMIC Location: Aurora, CO Vehicle: 2001 2.5RS Black Diamond Pearl	freeze plug for water.

11-06-2009, 12:22 AM	#5
dan az Scooby Newbie Member#: 120355 Join Date: Jul 2006 Chapter/Region: SWIC Location: prescott valley Vehicle: 2004 wrx wagon 2.5 fully built by me	water return hole for the factory water cooled oil heat exchanger

11-06-2009, 10:57 AM	#6
foolio Scooby Specialist Member#: 9351 Join Date: Aug 2001 Location: Berlin NJ Vehicle: 2006 Trailblazer SS Black	Correct, its like a little nipple that stick out for coolant return for the oil cooler.

11-07-2009, 11:31 AM	#7
mick_the_ginge Citizen Mick Member#: 27646 Join Date: Oct 2002 Chapter/Region: NWIC Location: Portland, Oregon Vehicle: 2003 Sleeved 2.5 Oil Dry Sump & Antilag	It feeds the oil cooler water. (Picture from my oil dry sump setup which is why I have capped the oil pickup, DO NOT DO THIS) It's part of #8 in this diagram. If you are not planning on running the oil cooler then it can be plugged. Other end (on water pump) needs to be plugged as well.