Ultimateduster Posted November 22, 2020 Share Posted November 22, 2020 The timing belt broke on my 2005 legacy and I'm trying to find a manual to make sure I'm put it back together right. Ej25 naturally aspirated SOHC After getting the heads off I found i got lucky and only bent 12/16 valves. The pistons and heads are fine. I got the parts of order and just wanted a manual for torq specs and procedures. If someone has a spare or a pdf they could part with would be greatly appreciated. Link to comment Share on other sites More sharing options...
Tehnation Posted November 22, 2020 Share Posted November 22, 2020 u need some vacation pics. Its posted somewhere around here. Link to comment Share on other sites More sharing options...
Max Capacity Posted November 22, 2020 Share Posted November 22, 2020 http://people.csail.mit.edu/ilh/vacation/ You can find it there. I have that link saved as a favorite book mark. 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...
Ultimateduster Posted November 23, 2020 Author Share Posted November 23, 2020 Thanks @max capacity You've been a great help Link to comment Share on other sites More sharing options...
Ultimateduster Posted November 25, 2020 Author Share Posted November 25, 2020 Does anyone here know if I set the valve clearance while I have the heads off will it still be good after I remount the heads or would I need to redo it? Link to comment Share on other sites More sharing options...
dgoodhue Posted November 25, 2020 Share Posted November 25, 2020 Yes, it is fine. It is normal to set the valve clearances with the heads off an EJ25 motor. Link to comment Share on other sites More sharing options...
boxkita Posted November 25, 2020 Share Posted November 25, 2020 Yes, it is fine. It is normal to set the valve clearances with the heads off an EJ25 motor. it is normal however the fsm clearances are with the timing belt in place. Because why not make a sucky job harder? Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
Ultimateduster Posted November 25, 2020 Author Share Posted November 25, 2020 FSM clearances? Link to comment Share on other sites More sharing options...
Max Capacity Posted November 25, 2020 Share Posted November 25, 2020 Field Service Manual. 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...
Ultimateduster Posted November 25, 2020 Author Share Posted November 25, 2020 Gotcha. So I shouldn't set the clearance to what it says in the service manual if I do it while the heads off? Should it be more clearance? Link to comment Share on other sites More sharing options...
Max Capacity Posted November 25, 2020 Share Posted November 25, 2020 I'll let boxkita answer that one. In ( my ) theory there should be no load from the belt on the cam at TDC. 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...
blackobxt Posted November 25, 2020 Share Posted November 25, 2020 The Subaru dealer from Wyoming sends all their heads off to an extremely reputable machine shop that does all the decking lashes all the valves on bench Link to comment Share on other sites More sharing options...
Ultimateduster Posted November 26, 2020 Author Share Posted November 26, 2020 Ok ill set them on my bench then cause I pulled the heads with the engine still in the car so getting to the lash will be a pita after. Thanks guys for your responses. Link to comment Share on other sites More sharing options...
boxkita Posted November 26, 2020 Share Posted November 26, 2020 Use a metric feeler gauge instead of guessing with a inch gauge. Following factory specs is good enough. Measurements in the manual are with the timing belt on, however, no one does it that way when rebuilding heads. If you ever wondered if you had a tendency to overthink something, doing valve lash on a ej25 will resolve that for you. Either you obsess about .01mm or you don't. The engine will still run in either case. Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
Ultimateduster Posted November 26, 2020 Author Share Posted November 26, 2020 Ok thanks box. I got the parts arriving tomorrow. Would you happen to know the measurements in metric? I pretty much always use metric anyway because all the motorcycles I rebuild are Japanese. I tend to make these in the middle of the range, is that a good practice for this engine as well? Link to comment Share on other sites More sharing options...
boxkita Posted November 26, 2020 Share Posted November 26, 2020 i only know the 2005 turbo ej . Later years tightened up the tolerance. If you wanted to be obsessed, you would look at specs for 2009 ej25 sohc. vacation pix has them and tells you how to check. rando story of woe: a machine shop & I had a difference of opinion on the quality of their work when setting the valve lash. When the actual machinist arrived to present his side he brought his .001" resolution feeler gauges. He then proceeded to forcefully check the lash. When he was all done, all the intakes were .008" not whatever the mm spec I'd asked for. The cams & buckets all had scratches on them. Ultimately, I went to the place I should have used originally and got it done right. Required all new buckets because damage. Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
Max Capacity Posted November 26, 2020 Share Posted November 26, 2020 The Subaru dealer from Wyoming sends all their heads off to an extremely reputable machine shop that does all the decking lashes all the valves on bench Good point. I know my buddies machine shop does the same for most of the dealers in the area. 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...
Ultimateduster Posted November 27, 2020 Author Share Posted November 27, 2020 @boxkita ah now your previous comment makes sense about the obsession over .001 lol. You mentioned buckets on yours. Mine is the screw and nut type, I don't see any buckets. Its one or the other correct? Link to comment Share on other sites More sharing options...
Tehnation Posted November 27, 2020 Share Posted November 27, 2020 the sohc(NA, 2.5i) uses rocker arms, the dohc(turbo, gt) uses buckets. Two different designs, dohc has 4 cams, 2 exhaust and 2 intake, sohc has only 2 cams. Link to comment Share on other sites More sharing options...
Ultimateduster Posted November 27, 2020 Author Share Posted November 27, 2020 Ok thank you for the clarification tehnation. You guys have been a big help. Link to comment Share on other sites More sharing options...
dgoodhue Posted November 28, 2020 Share Posted November 28, 2020 I still think you can set them on a bench if the heads are off with adjusting the 2.5i rockers. The timing belt alignment in the service manual is just a methodical way to get the valves on the base circle of the cam. Link to comment Share on other sites More sharing options...
Ultimateduster Posted November 29, 2020 Author Share Posted November 29, 2020 I'll be setting them tomorrow and I'll post back results, just finished cleaning the heads and lapping the new valves/ today so hopefully I'll get them back in tomorrow. Link to comment Share on other sites More sharing options...
Ultimateduster Posted December 2, 2020 Author Share Posted December 2, 2020 I got the heads back on and just wanted to update. I did pre adjust the valves on the bench but after I torqued them on the engine they tightened up so I had to readjust. Just figured I would update for anyone else with the same question. Thanks again for everyone's help Link to comment Share on other sites More sharing options...
blackobxt Posted December 2, 2020 Share Posted December 2, 2020 Did you lash them with the cams and everything torqued down on the bench? Torquing the heads to the block shouldn’t have effected the lash and if by chance your timing belt effected lash then you have other issues Link to comment Share on other sites More sharing options...
Ultimateduster Posted December 3, 2020 Author Share Posted December 3, 2020 When I pre lashed them while they were taken totally off so I could put new valves in. I then installed them to the block and torqued them. Timing belt isn't on the car yet. Link to comment Share on other sites More sharing options...
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