 Hey guys, welcome to part 4 of the EJ-25 build for the 06 STI, decided to do a short video today, only a few things to do. We're gonna do the oil cooler, the tensioner bracket and the thermostat. It's probably gonna be kind of boring. The next thing what I'm gonna be doing is the cylinder heads and if I were to combine the two, the things that I just mentioned and the cylinder heads, that video would be much, much longer. So cylinder heads is for part 5 and in this video only the three things that I've mentioned. So as always, like, subscribe, comment, but actually helps me and motivates me to do more of these kind of videos. Okay, since we're down here, I'm gonna install this plug here, that's the coolant passage for the oil cooler. I'm gonna apply RTV, a little bit on the thread and a little bit just underneath. This is a 24mm, so finger tight for now. I'm gonna come back to it later. So this is the oil cooler. When you look inside the walls of the oil cooler, this part goes to the block. This outside wall is kind of tapered, so it's wider on the edge and the opening gets tiny bit smaller as you go in. Same thing goes for the seal. So the slightly thinner, it's slightly thinner on this side than on this side, so that's gonna go inside first. But I'm gonna apply a tiny bit of oil. Here we go, a little bit of oil. This seal came out. That's also a 24mm. I'm gonna leave it loose a little bit and fix the holes. It's not gonna work. Okay, I'm gonna pre-install the holes. Could not find any torque specs for this guy here, but this one here is supposed to be 40mm. This part holds my oil pressure sending unit and oil temperature. I already put oil, a thin film of oil here, which I don't remember how this was. I'm just gonna put it like this for now. I don't remember how the exhaust manifold goes, where it sits. I hope it's not in the way. I can always twist it once the engine is back in the car. I'm gonna go 38 on this one. Oh, this is not a 24mm. All right, so this is a 27mm. I mean, this is not a 27mm, but my socket is a 27mm. You can see it's loose, but it will do. I don't want this thing to twist. It's not good for the seal. Oh my, I'm gonna do this. Okay, we're back in front of the engine. A little correction. I've been reading through the service manual and it's telling me to put RTV on these three bolts on the oil pump. So that's what I'm gonna do. I took one out already. The RTV goes on the threads. The torque was nine. It's actually 8.7. Okay, up next is this bracket here. What I've noticed on the bolt, there was some kind of like white glue. Could have been glue, I'm not sure. You can see it a little bit here. So I'm just gonna apply a tiny bit of blue. That's one. Blue is the weaker one. There's still red. Don't forget about these. This one I'm reusing. I put a new seal on this side. These are dust seals. I don't know what the torque specs are. I just found out from online, not the service manual for some reason, what the torque specs are for the tensioner bracket. And it's 18. All right, now let's do the thermostat. Of course, new seal and you will notice there's this hole. It's through and through. This will always go on top. This is basically, if any bubbles get trapped here, this will let them get through. Air bubbles, that is. All right, looks like I need some oil on this seal. There we go. So 12 o'clock. The torque on these two is 8.7. I'm just gonna do nine. Notice I'm not torquing one all the way. I'm just switching between the two until keeping it even until it gets a bit tighter.