Andyjo Posted December 7, 2013 Share Posted December 7, 2013 Hope many miles on that oil? Looks pretty dirty for just being put together (aside from the bronze stuff floating around). Also looks like there might be a bit much Fuji bond in the cam oil passage ways? Were the cams shafts easy to rotate before you put it in the car? Link to comment Share on other sites More sharing options...
Turkeylord Posted December 7, 2013 Author Share Posted December 7, 2013 56 miles on the oil :/ Link to comment Share on other sites More sharing options...
Andyjo Posted December 7, 2013 Share Posted December 7, 2013 Lots of blow-by? Did you clean your oil cooler? Oil pan? Link to comment Share on other sites More sharing options...
Turkeylord Posted December 7, 2013 Author Share Posted December 7, 2013 wow that was some quick work! bronzy particles usually are from the turbo journal bearing. does the turbo shaft have any play? i think valve guides are also bronze. maybe one of those has been damaged?Turbo is tight in all directions. I thought valve guides too maybe, but my machine shop didn't think so. Does it look like the same sand casting stuff that someone else recently found in a BNR turbo? Hard to tell on my phone?I don't think so, these are definitely metallic. Lots of blow-by? Did you clean your oil cooler? Oil pan?Not sure about blow-by, and yes, cleaned them well. Never saw any metallics in either. They seem VERY localized. The exhaust cam journal is clean as a whistle. It's just between the intake cam journal and the AVCS cam gear. Link to comment Share on other sites More sharing options...
heiche Posted December 7, 2013 Share Posted December 7, 2013 think it's possible that the avcs sprocket mechanism had an internal failure? wonder if they are made with any bronze parts? BtSsm - Android app/Bluetooth adapter. LV, logging, gauges and more. For 05-14 Legacy (GT, 2.5, 3.0, 3.6), 02-14 WRX, 04-14 STi, 04-14 FXT, 05-09 OBXT Link to comment Share on other sites More sharing options...
Turkeylord Posted December 7, 2013 Author Share Posted December 7, 2013 Possibly. I was scared to pull it apart, lol... Link to comment Share on other sites More sharing options...
heiche Posted December 7, 2013 Share Posted December 7, 2013 you don't happen to have any logs from after the rebuild, do you? curious if the pass side avcs angle was bouncing around. or maybe just tear apart the sprocket BtSsm - Android app/Bluetooth adapter. LV, logging, gauges and more. For 05-14 Legacy (GT, 2.5, 3.0, 3.6), 02-14 WRX, 04-14 STi, 04-14 FXT, 05-09 OBXT Link to comment Share on other sites More sharing options...
Turkeylord Posted December 7, 2013 Author Share Posted December 7, 2013 No, was just breaking it still, and I probably wouldn't have been logging avcs anyway :\ Link to comment Share on other sites More sharing options...
Max Capacity Posted December 9, 2013 Share Posted December 9, 2013 Can't view the pictures here at work. Bronze might be from the bearings. Were the crank journals plasti-gauged ? What are the wrist pin bushings made of ? 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Turkeylord Posted December 9, 2013 Author Share Posted December 9, 2013 My metallics look identical to those pictured in this thread: http://forums.nasioc.com/forums/showthread.php?t=2096679 I also drained and carb cleaned the AVCS oil line - mo metallics came out of it. As far as I can tell it's very local to the AVCS gear. AVCS gears are ~$150, OCVs ~$88, I might just replace both, we'll see. The local Napa has a 5-point Torx for the cam gear - I'm going to pull it apart and see what I find. I really hope this is the entirety of the issue. I'd be getting off pretty cheaply all things considered Link to comment Share on other sites More sharing options...
heiche Posted December 9, 2013 Share Posted December 9, 2013 Yeah, hopefully the failure is all contained in the AVCS gear. Haven't really heard of that happening, but hey that sure would be nice, relatively speaking. The link you posted references copper particles, which would be from much different sources than bronze. Copper would indicate main and/or rod bearings. Did you pull the buckets off of the #1 intake valves? (where you saw the highest concentration of particles) Still wondering if a bent valve chewed up a valve guide - hopefully not though! BtSsm - Android app/Bluetooth adapter. LV, logging, gauges and more. For 05-14 Legacy (GT, 2.5, 3.0, 3.6), 02-14 WRX, 04-14 STi, 04-14 FXT, 05-09 OBXT Link to comment Share on other sites More sharing options...
Turkeylord Posted December 9, 2013 Author Share Posted December 9, 2013 Yeah, hopefully the failure is all contained in the AVCS gear. Haven't really heard of that happening, but hey that sure would be nice, relatively speaking. The link you posted references copper particles, which would be from much different sources than bronze. Copper would indicate main and/or rod bearings. Did you pull the buckets off of the #1 intake valves? (where you saw the highest concentration of particles) Still wondering if a bent valve chewed up a valve guide - hopefully not though!Well I think copper/bronze is just referring to the color in general - plus it's hard to tell in oil. I didn't pull the intake buckets, but I will. As far as I could tell the particles were only in the cam journal, AVCS gear & OCV. I'll take another look to be sure. Link to comment Share on other sites More sharing options...
FJuan Posted December 9, 2013 Share Posted December 9, 2013 I damaged my driver side AVCS gear when I installed it, the oil ports where all screwed up. It doesn't take much to mess up the aluminum. Kept getting the P0021 code when I was breaking in the motor. Thought it was the OCV since it was sticking, so I replaced that. Still the code kept popping up. Pull the cam gear off and that's when I notice the oil ports where focked up. Bought a new one and everything was back to normal. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
Turkeylord Posted December 9, 2013 Author Share Posted December 9, 2013 Spent my lunch break failing to find a 5-point torx locally - Amazon it is. As fas as I can tell my cam gear looks ok, at least as far as the oil ports go... Link to comment Share on other sites More sharing options...
Turkeylord Posted December 9, 2013 Author Share Posted December 9, 2013 Oh, and the Subaru parts guy tried to send me out the door with a non-turbo OCV. Good thing I double checked before I left. Of course, the turbo one isn't in stock. Link to comment Share on other sites More sharing options...
boxkita Posted December 9, 2013 Share Posted December 9, 2013 ask waspgt , he's not using his specifically ordered tools for this Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
Turkeylord Posted December 9, 2013 Author Share Posted December 9, 2013 Ha, trying to avoid that curse... Link to comment Share on other sites More sharing options...
Turkeylord Posted December 9, 2013 Author Share Posted December 9, 2013 Ordered sketchy tools from Amazon, will report back if I regret cheaping out to save $14. I also shipped my injectors off to DW for a good douching. I should've done that before probably. More peace of mind. Link to comment Share on other sites More sharing options...
ibr_adam09 Posted December 10, 2013 Share Posted December 10, 2013 Ha! douching... Link to comment Share on other sites More sharing options...
Turkeylord Posted December 12, 2013 Author Share Posted December 12, 2013 Good guys @ Deatschwerks upgraded my shipping from 2-day to overnight for free to make sure I got my cleaned injectors Friday. Gotta love great customer service. Link to comment Share on other sites More sharing options...
kzr750r1 Posted December 13, 2013 Share Posted December 13, 2013 Injector douch is one thing I've been contemplating. Was the motor running rough? Car is running better now with each rev from Cryo so I may just not and leave well enough alone. Link to comment Share on other sites More sharing options...
Turkeylord Posted December 13, 2013 Author Share Posted December 13, 2013 Engine ran great, but the builder wanted me to send them in anyway - one less thing to worry about. We'll see what the before/after numbers look like when they arrive today. Link to comment Share on other sites More sharing options...
Max Capacity Posted December 13, 2013 Share Posted December 13, 2013 So...have we found the smoking gun yet....? Inquiring minds want to know. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Turkeylord Posted December 13, 2013 Author Share Posted December 13, 2013 I blame Canada. But I'm replacing the AVCS cam gear and OCV just to be sure. Link to comment Share on other sites More sharing options...
Turkeylord Posted December 13, 2013 Author Share Posted December 13, 2013 Ordered sketchy tools from Amazon, will report back if I regret cheaping out to save $14.Regret confirmed. Twisted almost immediately, then I tried grinding the bit down to get away from the the center security pin bore, and went a little too far for a good fit. Oh well, probably for the best that I'll use a new cam gear. Link to comment Share on other sites More sharing options...
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