kzr750r1 Posted October 19, 2014 Author Share Posted October 19, 2014 So.. Is this something that could also be tried on old valve covers ('05, 107k miles) that have started leaking? Or is it just time to replace them at that point? Oh yeah. If you try to reseal the old rubber will probably not take it. Link to comment Share on other sites More sharing options...
MrTris Posted October 19, 2014 Share Posted October 19, 2014 Oh yeah. If you try to reseal the old rubber will probably not take it. Bah, just pull 'em off, throw some Ultra Black on there and slap it back up. Link to comment Share on other sites More sharing options...
kzr750r1 Posted October 19, 2014 Author Share Posted October 19, 2014 I hope that's sarcasm or your hangover talking... Speaking of liver damage. It's time to start or take a nap. Link to comment Share on other sites More sharing options...
MrTris Posted October 20, 2014 Share Posted October 20, 2014 I hope that's sarcasm or your hangover talking. Little Column A, little Column B. Link to comment Share on other sites More sharing options...
FJuan Posted October 20, 2014 Share Posted October 20, 2014 Bah, just pull 'em off, throw some Ultra Black on there and slap it back up. Ummmm......no! After 100k miles that gasket is toast, time for a new one. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
MrTris Posted October 20, 2014 Share Posted October 20, 2014 Ummmm......no! After 100k miles that gasket is toast, time for a new one. You're toast! Link to comment Share on other sites More sharing options...
fahr_side Posted October 23, 2014 Share Posted October 23, 2014 KZR, what piston to wall clearances are you going for? Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
kzr750r1 Posted October 23, 2014 Author Share Posted October 23, 2014 (edited) KZR, what piston to wall clearances are you going for? Manley is recommending .003 for mild and .0035 for high boost. I'd say somewhere right between those will do fine. Rotating parts are in the garage. Balanced the rods and crank. Polished the bearings. Pistons were already a balanced set. Bummer #1 Case has not been decked yet. Expect him to take till next week. Bummer #2 Passenger head has cracks. I need to find another head. Edited October 23, 2014 by kzr750r1 Link to comment Share on other sites More sharing options...
MrTris Posted October 23, 2014 Share Posted October 23, 2014 Tha's a schweet crank! Link to comment Share on other sites More sharing options...
fahr_side Posted October 23, 2014 Share Posted October 23, 2014 Well, I had mine fitted to their specs (0.080 ~ 0.085mm) and I have to tell you, it's loud. That's the easy and reliable fitment, no way you will lock it up while breaking in hard, but it clanks like an old Chinese bus. If I were doing this over I'd probably ask for 0.070mm and take more time / care to break it in. Those cracks to the spark plug boss aren't a problem. Lots of EJ205 heads show those cracks and run like that for years. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
kzr750r1 Posted October 23, 2014 Author Share Posted October 23, 2014 WAT! So your not only telling me it should be tighter tolerance but I can run this head with cracks in it. What could be the cause of these cracks? Would always be suspicious if I moved forward without addressing. Will be calling a welding wizard today. Has helped be in the past. Not sure if his bag of tricks extends to this madness though. Looking for used and new quotes for a slab of aluminum. Will decide once I have answers. Link to comment Share on other sites More sharing options...
MrTris Posted October 23, 2014 Share Posted October 23, 2014 WAT! So your not only telling me it should be tighter tolerance but I can run this head with cracks in it. What could be the cause of these cracks? Would always be suspicious if I moved forward without addressing. Will be calling a welding wizard today. Has helped be in the past. Not sure if his bag of tricks extends to this madness though. Looking for used and new quotes for a slab of aluminum. Will decide once I have answers. Use searchtempest, or just start calling JYs and see if they'll pull heads for you. Don't quote me on it, but, I'm thinking it's probably not the best idea to use a set of mis-matched heads. Link to comment Share on other sites More sharing options...
GTEASER Posted October 23, 2014 Share Posted October 23, 2014 There is a Subaru only salvage yard up in Rancho Cordova, Subaru Auto Recyclers. They have everything. 916-905-4782 GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
kzr750r1 Posted October 23, 2014 Author Share Posted October 23, 2014 Looking at it this way. Used I'm looking for two. The reading I pulled through last night was in conclusive what other models have this same head config. Looked like I could call out some year of WRX as well for the JY search. If new is an option financially. I may try this route and deck the same. Unless this one is fixable I have to call around today and see if this seems possible. Link to comment Share on other sites More sharing options...
Max Capacity Posted October 23, 2014 Share Posted October 23, 2014 Any decent head welding guy can fix that. The head on our Civic D16Z6 had been welded a number of times. One fix was involved removing the head of a valve from #3. Brad at RLZengineering fixed it every time. The last I heard that same head was holding 735whp. 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...
kzr750r1 Posted October 23, 2014 Author Share Posted October 23, 2014 (edited) I'm hoping so Max. Would like to keep these lumps together. Interesting that others on the interwebs are saying the same thing as far_side. Run it. :/ Cause sounds like overtourqed plugs. Great, self inflicted wounds are not awesome. Will let some folks get their coffee fix finished up and start making some calls. I know you guys are getting ready for lunch. Were still waking up. Edited October 23, 2014 by kzr750r1 Link to comment Share on other sites More sharing options...
MrTris Posted October 23, 2014 Share Posted October 23, 2014 08-11 WRX should have D25 heads, which, will work, but will need airpump delete plates, and an understanding that your CR will take a lil' bump. Link to comment Share on other sites More sharing options...
fahr_side Posted October 23, 2014 Share Posted October 23, 2014 Really, the cracks are nothing. Worry about clearances. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
FJuan Posted October 23, 2014 Share Posted October 23, 2014 My question is....wtf is taking your machine shop sooo long to finish everything (3 - 4 weeks)? It only took my shop 2 days to do the work. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
kzr750r1 Posted October 24, 2014 Author Share Posted October 24, 2014 They are not Subaru guys. I'm going to let them deck the block and probably take the heads somewhere else. Your right this is taking too long. Link to comment Share on other sites More sharing options...
FJuan Posted October 24, 2014 Share Posted October 24, 2014 Have you checked for any machine shops in Tracy? My wife's balls are delicious. Link to comment Share on other sites More sharing options...
kzr750r1 Posted October 24, 2014 Author Share Posted October 24, 2014 Yeah but likely not any better prepared than who has it now. There is another shop in the east bay I'm going to call and talk to again. Cost was high but if they have seen these heads in the past would be better prepared to get me setup to assemble. Livermore Subaru new quote for PN 11039AB650 = $862 I can negotiate a 10% with the amount of parts I've purchased there. subarupartsonline = $560 Welding Specialist was inconclusive and would be pricey. Nice to talk to him again though. I hear what your saying fahr_side... Your in the 75% run it comments I find on other forums. Link to comment Share on other sites More sharing options...
fahr_side Posted October 24, 2014 Share Posted October 24, 2014 Yep. The 2.0 guys have been seeing these for years. A lot of guys have run them cracked like that for years with no ill-effects. I would also not run mismatched heads btw, which makes a parts bill for two new heads pretty shocking. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
kzr750r1 Posted October 24, 2014 Author Share Posted October 24, 2014 Yeah. Boxkita dangled cosworth prepped heads in my face in another thread. Still have a couple calls to make today. I don't like it but may just run it like it is. Start scrimping for a built motor. In my searching finally found the answer to a question GT and I were discussing. He used a term of semi closed deck. Our motors are semi closed. But IMO that's marginal as it's only one more rib added to the casting. The Open deck heads must only go in NA motors. Link to comment Share on other sites More sharing options...
GTEASER Posted October 24, 2014 Share Posted October 24, 2014 I think some turbo blocks are open deck. s2baru recently had his 5th gen GT motor built and I believe his block was open deck and he opted to either have his block modified to semi closed or bought one prepped that way. GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
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