![]() Leave to fully cool then recheck coolant level. Run the engine up to operating temperature, and check for leaks. Promote coolant flow through the LH Cylinder Head, reducing temperatures in Cylinders 2 + 4, balancing coolant temps across the engine, and improving the. (Photo #4) Bring the brass T-piece up to the factory coolant line to judge it’s position and cut the pipe in the required location (Photo #5), connecting up the modified line and securing with the 2x supplied Jubilee Clips (Photo #6)Ħ: Reinstall TMIC, refill coolant system and refit engine undertray. (Photo #3)ĥ: Remove the TMIC and locate the coolant line connected to the passenger side of the Throttle Body. Only under very hard driving (long periods at max rpm, up long hills at max boost/high up in rpm, track days etc) both my old 99 wrx and my current v6 sti pressurise the overflow bottle. Orientate the fitting and pipe vertically and tighten with an 18mm/6AN spanner. Now that i have had 2 wrxs and they have both done this i thought i would see if anyone elses does it. This will hold true in most all Subaru Outbacks, Impreza, Forester. Rent a coolant pressure tester with the proper adapter from an auto. ![]() You do not need to add any type of stop leak, I mean coolant conditioner, the service interval is every 30,000 or about every 2 years on average. I need to design a contraption to pressure test a cooling system on a Subaru Outback 2. (Photo #2)Ĥ: Connect the 90 degree 6AN fitting on the supplied pipe to the adaptor just installed in the cylinder head. If you own a 1990 to 2002 2.2l or a 1995 to 1999 DOHC 2.5l you can use just about any type of regular Green Antifreeze/coolant. Install the bonded seal onto the male/male adaptor and install into the cylinder head with a 24mm socket or spanner, taking care to not over tighten the aluminium fitting. (Photo #1)ģ: Clean the residue of loctite from the threads and sealing face of the head casting. This may be tight and require some force to undo. If you intend to replace the coolant, please dispose of the old fluid responsibly.Ģ: Locate the 12mm Allen Key bung on the rear of the LH Cylinder Head (passenger side) and remove. Installation is straightforward as follows :-ġ: Allow the engine to fully cool, remove engine undertray, then drain cooling system into a clean container, and set aside to refill after installation. 12mm Allen Key (socket type is preferential).Installation The following tools will be required :. The kit has been assembled by FB Tuning, using high-quality parts that will give you long-lasting and reliable performance, optimising coolant flow through the LH Cylinder Head. A cost effective upgrade for any EJ series engine, wether it’s a standard or highly tuned motor. Promote coolant flow through the LH Cylinder Head, reducing temperatures in Cylinders 2 + 4, balancing coolant temps across the engine, and improving the system’s efficiency.
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