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New Edge Cobras
Seating Piston Rings...(Smoking Issues)
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<blockquote data-quote="ElscottHavoc" data-source="post: 9470187" data-attributes="member: 93145"><p>I honestly don't know how he verified it...I guess I just took his word that he did the correct procedure for checking them. After I blew a piston, the car was smoking, but not nearly as bad as it is now. I think it's very likely that there is a cylinder head issue, as I can't imagine the rings not being seated by now, even if they are hard to seat. I basically have taken the same procedure. The first 150 or so were just simple nothing above 3000rpm, but constantly varying speed and load (at least that's what the builder said they did). After I got the car, I put a little more load on, nothing crazy yet...just some higher rpms 5-6000, 3/4 up hills, letting engine brake, have done about 20-30 pulls under 3/4 throttle to 6000rpm. Doesn't seem to smoke under those loads (course no one is behind me to let me know). I let the car get to operating temp as well first before I go doing stuff like that. I've done full throttle under boost in second and then third gear on an open stretch of slightly inclined highway to 6000rpm the last 4 times. Everything runs strong, sounds good, then you stop and after a couple of seconds it starts to smoke. You rev it up, it really smokes.</p><p></p><p>Some guy said to rev it to 6000rpm for 1 minute on another forum. I'm not going to do that, as it sounds foolish kind of, but I did rev it up to like 4000rpm for about 5 seconds and noticed it kinda bogs, and it isn't smooth revving. It smokes up the whole neighborhood doing that haha. It almost feels like when revving it's backfiring and sometimes misfiring or something. I unplugged the battery last night, in hopes of resetting the timing. I heard improper fuel injector timing can cause issues, but I see this as unlikely. We'll see though.</p><p></p><p>A part of me wants to just believe it's the rings, but the fact that it potentially may not be scares me. To a degree, even if it is the rings, I want it to be the builder who breaks it in on his terms because let's say it's not the rings, and I assume it is, then I find out that I've been driving it under that assumption and making the problem worse, I don't want that on my head. I have about $8500 into the engine right now...that's parts, labor, removal, installation of engine and supercharger, as well as tuning. To have that money go down the drain under the assumption of something doesn't seem right. </p><p></p><p>If the builder thinks it's the rings, then by all means he can at least save both our butts by verifying that it's not something else. </p><p></p><p>I'll keep you posted as I find out anything new. Prolly won't be until this weekend that I get the car back to the builder...I did find out though that the break in oil was in fact a 10w-30. The car has about 400 miles on it now and the smoking doesn't seem to lessen at all. But yeah, once I figure out the culprit, I'll get back. That's my biggest pet peeve is when people ask questions on the forums and then leave it up in the air as to whether it was solved or not.</p></blockquote><p></p>
[QUOTE="ElscottHavoc, post: 9470187, member: 93145"] I honestly don't know how he verified it...I guess I just took his word that he did the correct procedure for checking them. After I blew a piston, the car was smoking, but not nearly as bad as it is now. I think it's very likely that there is a cylinder head issue, as I can't imagine the rings not being seated by now, even if they are hard to seat. I basically have taken the same procedure. The first 150 or so were just simple nothing above 3000rpm, but constantly varying speed and load (at least that's what the builder said they did). After I got the car, I put a little more load on, nothing crazy yet...just some higher rpms 5-6000, 3/4 up hills, letting engine brake, have done about 20-30 pulls under 3/4 throttle to 6000rpm. Doesn't seem to smoke under those loads (course no one is behind me to let me know). I let the car get to operating temp as well first before I go doing stuff like that. I've done full throttle under boost in second and then third gear on an open stretch of slightly inclined highway to 6000rpm the last 4 times. Everything runs strong, sounds good, then you stop and after a couple of seconds it starts to smoke. You rev it up, it really smokes. Some guy said to rev it to 6000rpm for 1 minute on another forum. I'm not going to do that, as it sounds foolish kind of, but I did rev it up to like 4000rpm for about 5 seconds and noticed it kinda bogs, and it isn't smooth revving. It smokes up the whole neighborhood doing that haha. It almost feels like when revving it's backfiring and sometimes misfiring or something. I unplugged the battery last night, in hopes of resetting the timing. I heard improper fuel injector timing can cause issues, but I see this as unlikely. We'll see though. A part of me wants to just believe it's the rings, but the fact that it potentially may not be scares me. To a degree, even if it is the rings, I want it to be the builder who breaks it in on his terms because let's say it's not the rings, and I assume it is, then I find out that I've been driving it under that assumption and making the problem worse, I don't want that on my head. I have about $8500 into the engine right now...that's parts, labor, removal, installation of engine and supercharger, as well as tuning. To have that money go down the drain under the assumption of something doesn't seem right. If the builder thinks it's the rings, then by all means he can at least save both our butts by verifying that it's not something else. I'll keep you posted as I find out anything new. Prolly won't be until this weekend that I get the car back to the builder...I did find out though that the break in oil was in fact a 10w-30. The car has about 400 miles on it now and the smoking doesn't seem to lessen at all. But yeah, once I figure out the culprit, I'll get back. That's my biggest pet peeve is when people ask questions on the forums and then leave it up in the air as to whether it was solved or not. [/QUOTE]
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Seating Piston Rings...(Smoking Issues)
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