xt2005bonbon Posted June 21, 2015 Author Share Posted June 21, 2015 Any help is welcome. Appreciate your feedback as well. Link to comment Share on other sites More sharing options...
JmP6889928 Posted June 21, 2015 Share Posted June 21, 2015 Didn't read the whole thread. Lash on these is simple to do. Can be done with engine in the car-pop motor mounts loose and jack one side up and set on a block of wood and set other side down. I always set lash .001 loose because it makes absolutely sure valves close. Downside is slightly noisier valvetrain but much safer for high revs/high heat and also allows for slight mileage stretch. Link to comment Share on other sites More sharing options...
1-3-2-4 Posted June 22, 2015 Share Posted June 22, 2015 Not sure how it's easy to do given if the valve is already out of spec it requires a new bucket Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 22, 2015 Author Share Posted June 22, 2015 Didn't read the whole thread. Lash on these is simple to do. Can be done with engine in the car-pop motor mounts loose and jack one side up and set on a block of wood and set other side down. I always set lash .001 loose because it makes absolutely sure valves close. Downside is slightly noisier valvetrain but much safer for high revs/high heat and also allows for slight mileage stretch. Not sure how it's easy to do given if the valve is already out of spec it requires a new bucket Indeed, I am doing the job with the engine in. So far, I have not had to pop the motor mounts loose. And yes, FSM says for instance exhaust clearance should be 0.35mm. I will be shooting for probably 0.36 or 0.37mm. Link to comment Share on other sites More sharing options...
JmP6889928 Posted June 22, 2015 Share Posted June 22, 2015 Not sure how it's easy to do given if the valve is already out of spec it requires a new bucket New buckets will need to be involved. Link to comment Share on other sites More sharing options...
heiche Posted June 22, 2015 Share Posted June 22, 2015 New buckets will need to be involved. I can't get anyone to try my budget method. No new buckets required if you're increasing clearance (reducing bucket height). 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...
xt2005bonbon Posted June 23, 2015 Author Share Posted June 23, 2015 I can't get anyone to try my budget method. No new buckets required if you're increasing clearance (reducing bucket height). I would love to do that but I don't have the proper tools yet to do so . Link to comment Share on other sites More sharing options...
1-3-2-4 Posted June 23, 2015 Share Posted June 23, 2015 New buckets will need to be involved. At $30 a pop I will pass lol Link to comment Share on other sites More sharing options...
boxkita Posted June 23, 2015 Share Posted June 23, 2015 thanks for the link from Heuberger. 20$ a bucket is better than 27.. At $30 a pop I will pass lol $20/bucket Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
rmoore5 Posted June 23, 2015 Share Posted June 23, 2015 I've got 10 extra I'll trade for different sizes if needed. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 23, 2015 Author Share Posted June 23, 2015 I've got 10 extra I'll trade for different sizes if needed. yeah. wait for me . hopefully within the next few days, I'll report which sizes I need. Link to comment Share on other sites More sharing options...
rmoore5 Posted June 23, 2015 Share Posted June 23, 2015 Yeah, no prob., I probably should of quoted 1324 and boxkita. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 25, 2015 Author Share Posted June 25, 2015 alright. Last night, I successfully removed the camshafts without even dropping any of the buckets . Cleaned up the buckets (they look great and shiny by the way), and will soon make some measurements. In any case though, the bucket that was in the 'no clearance' exhaust valve in #2 shows '476'. If that thickness is still accurate, I would need a 443 bucket, which is one of the smallest sizes shown in the FSM! I'll update later on exact sizes that I need, but I have a feeling I will have to buy them.. Link to comment Share on other sites More sharing options...
heiche Posted June 25, 2015 Share Posted June 25, 2015 Sounds like a plan. Although the fact that you are needing one of the smallest size buckets might be a warning that perhaps the valve itself might need replacing at some point. Don't get me wrong, in this circumstance I'd get the clearance within spec and put it all together. But at some point in the future, that valve itself may need some attention. There's an odd thing that seems to happen with our valves. They sort of deform like a flower that closes slightly, possibly due to excessive heat(?) And it seems to be a slow progression rather than something sudden. When this happens, it effectively makes the valve longer from stem tip to seat area, and that reduces clearance. Here's a post that best describes this phenomenon. Anywho, don't mean to be a downer, just sayin. 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...
xt2005bonbon Posted June 25, 2015 Author Share Posted June 25, 2015 I totally understand your point (I actually read your thread yesterday again). And I was actually thinking about that too, when I noticed that I need one of the smallest size bucket. But yeah, for now I will button up everything and monitor that car like crazy. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 25, 2015 Author Share Posted June 25, 2015 Another thing, heiche, did you take pictures of your camshafts when you worked on your heads? How did your camshaft journals look? Link to comment Share on other sites More sharing options...
heiche Posted June 25, 2015 Share Posted June 25, 2015 I didn't take any close pics unfortunately. Camshaft journals seemed good enough for 130k miles. Not perfect, some light scoring, but couldn't feel that by scratching my fingernail on it. 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...
JmP6889928 Posted June 26, 2015 Share Posted June 26, 2015 I can't get anyone to try my budget method. No new buckets required if you're increasing clearance (reducing bucket height). Can top the valve stems to increase clearance. True high performance engine rebuilders top all of the valves so they can use all the same size buckets. Never an issue with buckets then. Link to comment Share on other sites More sharing options...
heiche Posted June 26, 2015 Share Posted June 26, 2015 Can top the valve stems to increase clearance. True high performance engine rebuilders top all of the valves so they can use all the same size buckets. Never an issue with buckets then. That's true, and actually somewhat common. However the bucket modifications don't require removal of the head, disassembly of the head, purchase of new headgaskets, reinstalling the heads, torquing the bolts, etc. It's definitely a low-budget method 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...
boxkita Posted June 26, 2015 Share Posted June 26, 2015 alright. Last night, I successfully removed the camshafts without even dropping any of the buckets . Cleaned up the buckets (they look great and shiny by the way), and will soon make some measurements. In any case though, the bucket that was in the 'no clearance' exhaust valve in #2 shows '476'. If that thickness is still accurate, I would need a 443 bucket, which is one of the smallest sizes shown in the FSM! I'll update later on exact sizes that I need, but I have a feeling I will have to buy them.. look heurberger. they have more buckets listed than the FSM. Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
boxkita Posted June 26, 2015 Share Posted June 26, 2015 Sounds like a plan. Although the fact that you are needing one of the smallest size buckets might be a warning that perhaps the valve itself might need replacing at some point. Don't get me wrong, in this circumstance I'd get the clearance within spec and put it all together. But at some point in the future, that valve itself may need some attention. There's an odd thing that seems to happen with our valves. They sort of deform like a flower that closes slightly, possibly due to excessive heat(?) And it seems to be a slow progression rather than something sudden. When this happens, it effectively makes the valve longer from stem tip to seat area, and that reduces clearance. Here's a post that best describes this phenomenon. Anywho, don't mean to be a downer, just sayin. can't find the post, however, it was suggesting the sodium filled valves can lengthen at high rpm? looking at that link, the burned valve looks like it was ground differently than the rest. the angles are off compared to the rest. Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 26, 2015 Author Share Posted June 26, 2015 look heurberger. they have more buckets listed than the FSM. Yeah I did. And I did find the right sizes. So I'll probably buy from them since it looks like they have the best price. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 27, 2015 Author Share Posted June 27, 2015 Measurements are in (see below) A few questions: 1. I am shooting for 0.37mm clearance for exhaust side instead of 0.35mm. Good choice? 2. Shooting for 0.21mm clearance for intake side instead of 0.2mm. Or should I even go to 0.22mm since the max clearance is 0.24mm? 3. Two of my intake valves have actually extra clearance (see 'cyl 2 intake F' and 'cyl 4 intake R'). Do you think it'd be OK to leave them as is, or will it really lead to extra wear on valves, valve seats and cam lobes? Really tempted to do heiche method here.... http://legacygt.com/forums/attachment.php?attachmentid=211620&d=1435376078 Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 27, 2015 Author Share Posted June 27, 2015 I guess I should add that question 1 has already been answered. I just want to confirm that it'd be OK to shoot for a slightly larger clearance for the intake side as well. Question 3 still stands though. Link to comment Share on other sites More sharing options...
JmP6889928 Posted June 28, 2015 Share Posted June 28, 2015 I can't get anyone to try my budget method. No new buckets required if you're increasing clearance (reducing bucket height). Your method will work BUT the buckets have a convex finish on the center button because they have to rotate to maintain oiling on them. If you grind that off and the valve top isn't perfect, then they may not rotate as necessary. I agree that it would definitely be easier and save money and if you were going to do that on a full build, you could grind the valve tops before assembly to have a convex tip and then grind the buckets any way you wanted and it would work just as well. Link to comment Share on other sites More sharing options...
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