Th3Franz Posted January 26, 2016 Share Posted January 26, 2016 In the process of tearing down the first rebuild for fresh pistons, rings, and bearings. The block had oil leaks since early on which have caused additional problems. A local shop is helping with performing the work. I was surprised to find some metal shavings in the oil pan and scoring on the cams... The previous oil change I did was clean. What's going in: Manley forged pistons (probably going up to 99.75 but will see where the measurements end up) King Trimetal bearings Re-use STI heat treated crank Manley H-Tuff rods Looks like I'll need new cams and I'm hoping the machine shop can clean up the journals and save the castings. new oil pump and oil cooler are going in. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Th3Franz Posted January 26, 2016 Author Share Posted January 26, 2016 #3 piston skirt was rubbing against the cylinder. Bottom end bearings are OK. The skirt rubbing may have caused the initial shavings. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Rhitter Posted January 27, 2016 Share Posted January 27, 2016 what causes the piston skirt to rub against the cylinder? My OBXT build Link to comment Share on other sites More sharing options...
Max Capacity Posted January 27, 2016 Share Posted January 27, 2016 what causes the piston skirt to rub against the cylinder? IMO, bad piston to wall clearance. 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...
Th3Franz Posted January 28, 2016 Author Share Posted January 28, 2016 or damaged rings. not exactly sure but #3 had 10% leak down. The rest of the cylinders were 3-4%. Now I am deciding what to do about the cams.. if GSC has an extra S1 cam I would like to send in the other 3 and have them regrind them to 272 profile. I'm running a bigger turbo than I was and S2 is a better match now. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Th3Franz Posted January 28, 2016 Author Share Posted January 28, 2016 My Koyo radiator has a leak where the core meets the bottom tank. No warranty from Koyo. Now I'm trying to get that fixed. We're also sending in my EFR turbo to get checked out. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
seanyb505 Posted January 31, 2016 Share Posted January 31, 2016 Sounds like quite a few issues. At least they can all get rectified at once. Link to comment Share on other sites More sharing options...
Max Capacity Posted February 2, 2016 Share Posted February 2, 2016 Depending on what the heads are worth, you can have them welded and re-machined for the cam journals. 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...
Th3Franz Posted February 25, 2016 Author Share Posted February 25, 2016 I'm trying to find a machine shop to weld and remachine the cam journals in the head. The cap is grooved pretty badly too. Most shops don't have a bit that is small enough for the line hone. in other news, the grooving in the bottom of #1 and #3 is deeper than we thought. After boring to 99.75mm, the groove is still present and we are not sure how deep it goes. So, I am looking at new case halves and will probably go closed deck now. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Max Capacity Posted February 25, 2016 Share Posted February 25, 2016 If the grove is in the bottom, isn't that below where the rings travel ? 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...
Max Capacity Posted February 25, 2016 Share Posted February 25, 2016 I wonder if Geoff at Fullrace.com might know of someone. May be Tony Palo of http://www.t1racedevelopment.com/ You can tell them the guy with the yellow civic single cam from back in the day sent you. 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...
Th3Franz Posted February 28, 2016 Author Share Posted February 28, 2016 I misunderstood. It's actually at the top. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Rhitter Posted February 28, 2016 Share Posted February 28, 2016 My Koyo radiator has a leak where the core meets the bottom tank. No warranty from Koyo. Now I'm trying to get that fixed. We're also sending in my EFR turbo to get checked out. Which radiator do you have from them? OEM replacement or racing spec? My OBXT build Link to comment Share on other sites More sharing options...
Th3Franz Posted March 2, 2016 Author Share Posted March 2, 2016 It's their racing radiator. I had a shop repair the leak with some special epoxy so we'll see how it holds up. Koyo was pretty rude on the phone when we asked them about the leak. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Max Capacity Posted March 2, 2016 Share Posted March 2, 2016 I misunderstood. It's actually at the top. I'm thinking that's not good. What did the machine shop say ? 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...
Th3Franz Posted March 4, 2016 Author Share Posted March 4, 2016 We're having IAG supply a new closed deck case and they will also repair the head. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Thinking out side box Posted March 30, 2016 Share Posted March 30, 2016 add a bigger oil pump with the PPQ enlarged filter mod, better oil flow! Link to comment Share on other sites More sharing options...
Th3Franz Posted April 9, 2016 Author Share Posted April 9, 2016 I have a pair of original heads from my car so I'm having a shop port the head to match and install the upgraded valves, guides, springs, retainers, and buckets. Some of the valves had weird deposits that wouldn't clean up well so they are being replaced -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Max Capacity Posted April 10, 2016 Share Posted April 10, 2016 Does that machine shop know about porting these heads, you should only do work in the valve pocket and thin out the divider, do not open up where the port meet's the manifold. Here's mine. http://i185.photobucket.com/albums/x40/92Si/DSCN4773.jpg http://i185.photobucket.com/albums/x40/92Si/DSCN4772.jpg 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...
Th3Franz Posted April 11, 2016 Author Share Posted April 11, 2016 Yes it's only a pocket port job, same as last time. Nice looking heads there -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Th3Franz Posted April 26, 2016 Author Share Posted April 26, 2016 heads are done! ARP625 head studs are coming also -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
seanyb505 Posted April 26, 2016 Share Posted April 26, 2016 Pretty. I love perfectly cleaned engine parts. I also see you went with the cobra mystic paint job, too. Link to comment Share on other sites More sharing options...
Max Capacity Posted April 26, 2016 Share Posted April 26, 2016 Headgames....nice choice. 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...
Th3Franz Posted May 9, 2016 Author Share Posted May 9, 2016 Short block and heads are done. Checked piston to valve clearance with clay for full AVCS advance and plenty of clearance. I'm hoping to get the long block in the car this week. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Max Capacity Posted May 9, 2016 Share Posted May 9, 2016 Do you plan to put most of the external pieces on the engine before you install it ? Remember to test fit the tmic while the engine is on the stand. 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...
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