Hoping if someone with experience could help me with identification. Up to this point, it's me, my limited knowledge, and pictures from eBay.
I recently purchased a 1999 Legacy Outback Limited as a parts car, engine donor. running and driving for $300 out of someone's front yard. I pulled the engine and replaced head gaskets, upper engine seals and timing components as usual. I noticed a few differences between this engine, and the two others I have experience with, a 97 EJ25D and a 98 EJ25D. Up until late reassembly, I just thought, "oh it's just a weird '99 thing," assuming they updated the EJ25 along with the phase I/phase II split in the EJ22 of the same year. I can't find any source saying significant changes were made for 99 only. Instead, it seems to match that of a JDM long block with USDM manifolds and waste spark. I've listed some strange qualities about it below, let me know what you think.
-"4 CAM 24 VALVE" embossed on valve covers
- wire clip bracket on timing belt cover (for front mounted/uel cats?)
-threaded holes near spark plug holes, as if for coil-over-plugs
-flat top pistons with machined provisions for valves, as opposed to the dished pistons I've seen in the other two engines
-different style water pump with a forward facing thermostat and aluminum thermostat housing. Had the Fuji Heavy Industries logo embossed on both the pump and housing.
The water pump is what made me wonder, as another (long-dead) thread stated that the JDM engines used the turbo style water pump, whatever that may be. The car sat for two years so the coolant was basically mud, and the pump would have been trash if I were to run it anyways. Unfortunately because of that, I threw it away before I noticed the difference. I got a Gates component kit, (third one I've installed, never had an issue with fitment before,) and the housing bolts on differently so it would either be facing straight forward or back, as opposed to out the side like I need it to. Also, the Gates pump has a curve and a raised provision for the thermostat, making the center timing cover not fit properly. If I were to just use the center timing cover from my known USDM engine, would the pump still be compatible?
Thanks for any help!
Edited by pginter96, 07 December 2015 - 11:30 PM.